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Phantom FGR.2

2023-05-20T17:48:13Z

U127172829: Minor spelling errors, some links added/edited.

{{About
| about = jet fighter '''{{PAGENAME}}'''
| usage = other versions
| link = F-4 Phantom II (Family)
}}
{{Specs-Card
|code=f-4m_fgr2
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}
}}

== Description ==

The '''{{Specs|name}}''', also known as the '''F-4M''', is a rank {{Specs|rank}} British jet fighter {{Battle-rating}}. It was introduced in [[Update 1.93 "Shark Attack"]]. It is a British version of the American F-4 Phantom II.

Although at first glance the Phantom FGR.2 appears very similar to its American counterpart the [[F-4C Phantom II]], there are a number of major visual and performance differences between the two aircraft. Phantoms produced for the RAF were redesigned to use British Rolls-Royce Spey turbofan engines, instead of the General Electric J79 turbojet engines found on American Phantoms. The British engines produced more thrust than the American engines, but were larger; as a result, the fuselage of British Phantoms was modified to be slightly wider than on the American models. In addition, the Phantom FGR.2 has larger air intakes than the F-4C, in order to allow for the increased airflow required by the new engines. The rear of the Fuselage is also significantly different on the Phantom FGR.2; the engines are noticeably angled downwards, and due to the different afterburner arrangement on the Spey engines the exhaust ports and the surrounding area were redesigned. Most distinctively, the Phantom FGR.2 has a squared-off tail and lacks the under-nose probe of the [[F-4C Phantom II|F-4C]].

In-game these changes mean that the Phantom FGR.2 has much better low altitude acceleration and climb rate, compared to the [[F-4C]], as a result of the more powerful engines. In games you will usually see the Phantom FGR.2s get off the ground and to altitude quicker than the F-4Cs; however due to the increased drag of the redesigned fuselage, and the performance characteristics of the Spey engines, it does not perform quite as well as the [[F-4C Phantom II|F-4C]] at high altitude, and cannot reach the same maximum speed.

== General info ==
=== Flight performance ===
{{Specs-Avia-Flight}}

[[File:FGR.2 fenris 001.jpg|400px|thumb|right|]]
The Phantom FGR.2 is a large and heavy aircraft (more than twice the weight of a MiG-21), but there are times when you would hardly know it. The Phantom's two Rolls-Royce Spey turbofans are one of the most powerful jet engines in the game and give it an incredible thrust to weight ratio, leading to the Phantom FGR.2 being the fastest accelerating, and flat out fastest aircraft in the game at low altitude, while also being a strong contender for the fastest climbing. On take-off even stock FGR.2s will be the first aircraft to get off the ground and make it top the end of the runway (usually be a decent margin); while in terms of flat out speed a fully upgraded FGR.2 will push Mach 1.22 along the deck, a good bit faster than any other aircraft. The Phantom also climbs incredibly well, when loaded with 20m of fuel, missiles and a gunpod it can accelerate past Mach 1 in a 20° climb and even gain speed in a 50° climb (until it reaches about 2,000 m altitude); only few aircraft make it to altitude as fast as / faster than the FGR.2.

While the Phantom FGR.2 is certainly not the most maneuverable fighter in the game it can prove to be more agile than you would expect at low altitude. While you shouldn't be getting into full blown turn fights the Phantom handles very nicely when down low and can pull some maneuvers with surprisingly little speed loss (mainly thanks to the amount of engine power you have).

Where the Phantom FGR.2 suffers is at higher altitudes, the Spey engines perform worse at altitude and the structural changes to accommodate them caused increased drag; this makes it slower than the American [[F-4C]]. At high altitude the FGR.2 loses the agility it had at lower altitude, and generally does not handle as nice. While it is still flyable evasive maneuvers become harder and the turn radius is much larger.

{| class="wikitable" style="text-align:center" width="70%"
! rowspan="2" | Characteristics
! colspan="2" | Max Speed (km/h at 10,667 m)
! rowspan="2" | Max altitude (metres)
! colspan="2" | Turn time (seconds)
! colspan="2" | Rate of climb (metres/second)
! rowspan="2" | Take-off run (metres)
|-
! AB !! RB !! AB !! RB !! AB !! RB
|-
! Stock
| 2,189 || 2,146 || rowspan="2" | {{Specs|ceiling}} || 26.5 || 26.7 || 176.0 || 165.3 || rowspan="2" | 850
|-
! Upgraded
| 2,355 || 2,268 || 25.5 || 26.0 || 246.9 || 210.0
|-
|}

==== Details ====
{| class="wikitable" style="text-align:center" width="50%"
|-
! colspan="6" | Features
|-
! Combat flaps !! Take-off flaps !! Landing flaps !! Air brakes !! Arrestor gear !! Drogue chute
|-
| X || ✓ || ✓ || ✓ || ✓ || ✓ 
|-
|}
[[File:FGR2 full ordnance.jpg|thumb|400x400px|Phantom FGR.2 with multi-role ordnance]]
{| class="wikitable" style="text-align:center" width="50%"
|-
! colspan="7" | Limits
|-
! rowspan="2" | Wings (km/h)
! rowspan="2" | Gear (km/h)
! colspan="3" | Flaps (km/h)
! colspan="2" | Max Static G
|-
! Combat !! Take-off !! Landing !! + !! -
|-
| {{Specs|destruction|body}} || {{Specs|destruction|gear}} || N/A || 584 || 463 || ~11 || ~4
|-
|}

{| class="wikitable" style="text-align:center"
|-
! colspan="4" | Optimal velocities (km/h)
|-
! Ailerons !! Rudder !! Elevators !! Radiator
|-
| < 810 || < 750 || < 700 || N/A
|-
|}

==== Engine performance ====
{| class="wikitable" style="text-align:center"
|-
! colspan="3" | Engine
! colspan="5" | Aircraft mass
|-
! colspan="2" | Engine name || Number
! colspan="2" | {{Annotation|Basic mass|Mass of the aircraft with pilot and engine oil, but no fuel or weapons load}} || colspan="3" | Wing loading (full fuel)
|-
| colspan="2" | Rolls-Royce Spey 203 || 2
| colspan="2" | 13,645 kg || colspan="3" | 396 kg/m2
|-
! colspan="3" | Engine characteristics
! colspan="4" | Mass with fuel (no weapons load) || rowspan="2" | Max Takeoff Weight
|-
! Weight (each) || colspan="2" | Type
! 10m fuel || 20m fuel || 30m fuel || 33m fuel
|-
| 1,860 kg || colspan="2" | Afterburning low-bypass turbofan
| 15,397 kg || 17,124 kg || 18,863 kg || 19,485 kg || 25,400 kg
|-
! colspan="3" | {{Annotation|Maximum engine thrust @ 0 m (RB/SB)|The maximum thrust produced by each engine, while mounted in the aircraft. NOTE: Thrust varies significantly depending on speed & altitude.}}
! colspan="5" | Thrust to weight ratio @ 0 m (WEP)
|-
! Condition || 100% || WEP
! 10m fuel || 20m fuel || 30m fuel || 33m fuel || MTOW
|-
| ''Stationary'' || 5,120 kgf || 9,031 kgf
| 1.17 || 1.05 || 0.96 || 0.93 || 0.71
|-
| ''Optimal'' || 5,120 kgf (0 km/h) || 10,331 kgf (1,200 km/h)
| 1.34 || 1.21 || 1.10 || 1.06 || 0.81
|-
|}

=== Survivability and armour ===
{{Specs-Avia-Armour}}

Much like the older [[F-4C]] variant, the British {{PAGENAME}} is without any armor protection whatsoever - the weight savings allow the aircraft to take on more fuel or ordnance while utilizing speed as its best defense. This fighter packs numerous fuel tanks, while some are located in the leading edges of the wings, the majority of the fuel tanks are located within the fuselage packed around the engines and behind the cockpit. The control lines for the {{PAGENAME}} run from the cockpit down the length of the upper fuselage to the tailplane, relatively exposed to enemy gunfire.

Fighters attempting to take down a {{PAGENAME}} should try to force it to bleed its energy in a turn with missiles - a slow Phantom is a vulnerable Phantom. Autocannons and missiles will be most effective for disabling or destroying critical components, but smaller rockets such as [[M/55]], [[SNEB Type 23]] or [[FFAR Mighty Mouse]] unguided rockets fired in salvos during a head-on engagement may cause enough of a scattered grouping that a {{PAGENAME}} may not be able to avoid them all and fly into at least one.

=== Modifications and economy ===
{{Specs-Economy}}

The order in which modifications are unlocked on the Phantom FGR.2 will depend to some extent on how one would like to play the aircraft. The [[AIM-9D]] missiles are among the best available to top tier jets, and so most fans of missile combat will likely want to unlock them as soon as possible. If missiles are not desired then it may be wise to instead focus on unlocking the 20 mm belts and new 20 mm cannon modification, to make the spread of the gun less extreme and more usable; and if one plans to use it as a ground attacker, then the ordnance options are the obvious choice (although the FGR.2 does not excel in this role to the same extent as its American counterpart). When equipped with its 8 x 1,000 lb bombs the FGR.2 becomes highly potent bomber; using its low altitude performance to get to enemy bases incredibly quickly, it is possible to unlock the bombs and use this tactic to speed up unlocking other modifications, although the FGR.2 is a capable fighter when stock so this is not a necessity.

Even when stock the Phantom FGR.2 is just about the best-performing aircraft in the game at low altitude; with this in mind flight performance upgrades are not as much of a priority as on other aircraft, so weapons upgrades can be prioritized. When unlocking flight performance upgrades one may wish to focus on engine upgrades to further improve the FGR.2's incredible acceleration and climbing performance.

;Possible modifications to priorities (depending on playstyle of the pilot)

* Powerful missiles: AIM-9D, AIM-9G, AIM-7E, and Skyflash modifications
* Ammunition variety: Offensive 20 mm modification
* Ground attack: 1,000 LB GP modification for larger bombs followed up with Matra SNEB modification for unguided rockets

== Armaments ==
{{Specs-Avia-Armaments}}
{| class="wikitable" style="text-align:center"
|-
! colspan="4" | [[Ballistic Computer]]
|-
! CCIP (Guns) !! CCIP (Rockets) !! CCIP (Bombs) !! CCRP (Bombs)
|-
| {{Tick}} || {{Tick}} || {{Tick}} || {{Tick}}
|-
|}
=== Offensive armament ===
{{Specs-Avia-Offensive}}


The '''''{{PAGENAME}}''''' is armed with:

* A choice between two presets:
** Without offensive armament
** 90 x countermeasures

=== Suspended armament ===
{{Specs-Avia-Suspended}}

{{main|Mk.M2 (540 lb)|H.E. M.C. Mk.13 (1,000 lb)|SNEB type 23|GAU-4 (20 mm)}}
{{main|AIM-7E Sparrow|AIM-9D Sidewinder|AIM-9G Sidewinder|Skyflash}}

The '''''{{PAGENAME}}''''' can be outfitted with the following ordnance presets:

* 1 x 20 mm GAU-4 cannon (1,200 rpg)
* 2 x AIM-9D Sidewinder missiles
* 4 x AIM-9D Sidewinder missiles
* 4 x AIM-9G Sidewinder missiles
* 4 x AIM-7E Sparrow missiles
* 4 x Skyflash missiles
* 234 x SNEB type 23 rockets
* 11 x 1,000 lb H.E. M.C. Mk.13 bombs (11,000 lb total)
* 13 x 540 lb Mk.M2 bombs (7,020 lb total)

==== Custom loadout options ====
{| class="wikitable" width="100%" style="text-align:center"
|-
! !! width="4%" | 1 !! width="4%" | 2 !! width="4%" | 3 !! width="4%" | 4 !! width="4%" | 5 !! width="4%" | 6 !! width="4%" | 7 !! width="4%" | 8 !! width="4%" | 9 !! width="4%" | 10 !! width="4%" | 11
| rowspan="9" width="30%" | <div class="ttx-image">[[File:Hardpoints_Phantom_FG.1.png]]</div>
|-
! 20 mm GAU-4 cannons (1200 rpg)
| || || || || || 1 || || || || ||
|-
! 540 lb Mk.M2 bombs
| 2 || 3 || || || || 3 || || || || 3 || 2
|-
! 1,000 lb H.E. M.C. Mk.13 bombs
| 2 || 2 || || || || 3 || || || || 2 || 2
|-
! SNEB type 23 rockets
| 36 || 54 || || || || 54 || || || || 54 || 36
|-
! AIM-7E Sparrow missiles
| || || || 1 || 1 || || 1 || 1 || || ||
|-
! AIM-9D Sidewinder missiles
| || || 1, 2 || || || || || || 1, 2 || ||
|-
! AIM-9G Sidewinder missiles
| || || 2 || || || || || || 2 || ||
|-
! Skyflash missiles
| || || || 1 || 1 || || 1 || 1 || || ||
|-
| colspan="12" | Maximum permissible weight imbalance: 1,500 kg
|-
|}

Like the [[F-4C]], the Phantom FGR.2 lacks any internal guns; instead relying on an M61 Vulcan rotary cannon, mounted centrally under the fuselage. The cannon is angled downwards at about 1°, coupled with the position of the gun under aircraft this makes aiming slightly more difficult than on other aircraft; the gun also has a wide bullet spread. A benefit of the rotary cannon is that it can fire all 1,200 rounds before it can overheat and jam. Unlike the F-4C the Phantom FGR.2 can only carry a single gunpod.

In terms of other suspended weaponry, the Phantom FGR.2 falls far behind the F-4C. It has a more limited choice of bombs, carries fewer rockets and cannot carry Bullpup air-to-ground missiles.

In terms of air-to-air missiles, the Phantom FGR.2 can carry up to four IR missiles (AIM-9D/G), in conjunction with four SARH missiles (AIM-7E/Skyflash). Compared to analogues such as the [[AIM-9J]], AIM-9D and G have much longer engine burn times while only slightly sacrificing flight performance characteristics. Notably, the AIM-9G can be slaved to a radar lock, allowing for a very versatile and powerful medium-range missile.

The AIM-7E Sparrow is radar-guided which means it uses semi-active radar homing to find and track the target. It can pull up to 25 G but it is recommended for longer range engagements, e.g. lock a target and fire from up to around 8 km away, because the Sparrow is all-aspect and pilots without RWR (radar warning receiver) will not know it is even coming if they are not situationally aware. This means that you can launch Sparrows at people who will never even see the missile coming. Although good for medium to longer range engagements, the Sparrow is not very good at making sudden changes to its flight path and it takes a while to start tracking opponents. This is mostly mitigated by the improved seeker of the Skyflash missiles, however you are better off switching to your infrared homing missiles (using the [[Weapons selector|weapon cycle function]]) if it becomes a closer-range rear-aspect engagement.

== Usage in battles ==


The thing which sets the Phantom FGR.2 apart from other jets is the sheer power of its engines (the most powerful in the game); this gives it incredible speed, acceleration and climb rate, especially at low altitude. The engines are however very fuel hungry, leading to a decision needing to be made about the fuel load you take. It may be tempting to take the 7 minute load to maximize flight performance, although this is ill advised as this will only give you a little over three minutes of flight time when using the afterburner, even if you only use the afterburner sparingly the 7 minutes fuel load will still limit your endurance quite significantly, and can often lead to you having to return to base sooner than you would want to. It is usually best to pick 20 minutes of fuel; this should give adequate endurance for the majority of games, and although the aircraft feels noticeably heavier than with 7 minutes of fuel it still performs incredibly well.

There are two main schools of thought on how to fly the Phantom FGR.2 to best make use of its advantages. One is to start the game by climbing to high altitude, and the other is to maintain low altitude throughout the game. Most games will use a mixture of both tactics i.e. starting the game by climbing high to get long range missile kills, then dropping down to low altitude to make use of your very good low altitude performance.

Some players prefer to use this to their advantage and get to altitude at the start of the game in order to be above the vast majority of enemy aircraft. When choosing to play this way a good climbing technique is to take off on full afterburner straight into either a 20° or a 30° climb, depending on if you value speed or altitude more. A spaded Phantom FGR.2 with 20m of fuel the cannon pod and 4 x [[AIM-9G]] and 4 x [[Skyflash]] (the recommended load-out for most players) will accelerate to > Mach 1 in a 20° climb and reach 5,000 m about 1 minute 10 seconds after leaving the ground; by comparison in 30° climb it will reach 5,000 m in about 55 seconds after leaving the ground, albeit travelling at only Mach 0.8. The choice of which climb profile to follow (or make your own) is up to you; 30° will get you to altitude quicker and in less horizontal distance, but at the expense of speed; on larger maps you may wish to take the 20° to get to the battle area quicker, it depend on your playstyle; there are also other situations where having more speed once you get to altitude is desirable.

Everything varies depending on your playstyle and the situation in battle, but as a rough guide: it is not advisable to climb due to many other aircraft at this tier having better flight performance and missile such as the F-14A Early and the MiG-29. It is essential to keep your speed as high as possible, your best chance for a kill is during a head-on with your Skyflash missiles.

The Skyflash is a lethal SARH missile, having 25G of overload, however the range may not be as good when compared to other SARH missiles at this tier. When at high altitude (5 km+) These missiles can be fired at around 10 km in a head-on situation with a high chance of hitting the target. At low altitude try to fire it around 4-5 km in a head on situation.

Along with the Skyflash, the FGR.2's pulse Doppler (PD) radar effectively grants immunity against chaff in a merge. The only way to break the FGR.2's PD lock is to 'notch' (turn perpendicular to the lock), or turn cold and run away. As mentioned above, while waiting to launch the Skyflash at dangerously close ranges is certainly risky, doing so will almost always guarantee a kill at high altitudes.

Comparing the 2 western top tier IR missiles - the AIM-9G and AIM-9J - the AIM-9G slightly falls behind in track rate, maneuverability, and seeker sensitivity. However, it makes up for these downsides with a 6-second rocket burn time, and a massive 30 degree acquisition envelope. This Sidewinder is effective up to 4 km at high altitudes. The greater the distance on launch, the less likely the enemy is to notice the incoming missile. In diving attacks on low-flying enemies, the best targets are those directly below and flying away in the same direction to maximise the chance of maintaining the IR lock. The AIM-9G has a tendency to lose lock when perpendicular to the heat source, which makes attacking manoeuvring targets not ideal regardless of altitude. The massive engagement envelope allows the pilot to lead the AIM-9G up to 30 degrees when firing the missile

[[File:R-60 Dodge Phantom PoV.mp4|thumb|right|Dodging an R-60 in the Phantom FGR.2 (Phantom player view)]]
[[File:R-60 Dodge Missile PoV.mp4|thumb|right|Dodging an R-60 in the Phantom FGR.2 (Missile view)]]
At high altitudes the Phantom becomes much less maneuverable, and to some extent loses its raw performance advantage compared to other top tier jets. Therefore, you may alternatively learn how to best use the Phantom at lower altitudes where controls are more responsive and its acceleration and speed dominate the competition. All missiles have a reduced effective range (by a factor of ~1/3) due to denser air and the greater probability of the target evading missiles. Skyflashes will only be effective within 6 km in head-ons only, and AIM-9Gs within 3 km in subsonic pursuits. Holding on to any energy is crucial as it keeps open the option to disengage when needed. Phantoms have a few last-ditch tricks to shake off a pursuer closing the distance, however, the maneuver must be timed and executed perfectly or it will result in your death. The 20 mm M61 Vulcan is the ideal weapon for these knife fights, sporting a 6,000 rpm rate of fire and a 1,050 m/s muzzle velocity. The stock Vulcan is accurate enough even for high deflection shots at 1 km, and spraying a barrage of 20 mm at the enemy's cockpit in a head-on is more likely to cripple the enemy in several components (pilot, radar, wing roots, tail, even the engines) than a laser beam. While the HEF-I rounds in the Air Targets belt is enticing, the best belt against enemy aircraft is the Ground Targets belt. API rounds tends to ignite enemy aircraft more than HEF-I, and as an added bonus, leftover ammo can be used to attack ground targets after the furball ends. The default belts may be used instead to save on Silver Lions, as both the default and Ground Targets belts perform exceptionally well against aircraft and ground targets. Another valid strategy is to not carry the gunpod at all and enjoy the extra speed and turn rate, however this means you are mostly defenseless in a dogfight.

In theory, the ideal playstyle for the Phantom is to play as a support fighter as many enemies at this tier carry better missiles and is more maneuverable. When partaking in the low altitude brawl you need to maintain good situational awareness. You can outrun most other jet in a straight line, but if you get caught up in a dogfight all it takes is one missile from the enemy to ruin your day. However noticing an incoming missile in time and deploying countermeasures will almost always defeat the missile.

=== Pros and cons ===

[[File:FGR.2 fenris 003.png |400px|thumb|right|]]

'''Pros:'''

* Very powerful Spey engines make the FGR.2 one of the best jets in top speed, acceleration, climb rate, energy retention
* [[AIM-9D]] and [[AIM-9G Sidewinder|AIM-9G]] have significantly longer range than other IR missiles
* Carries the potent [[Skyflash]] SARH missile
* Multi-role capabilities with [[Ballistic Computer|CCIP and CCRP]] and various ground attack ordnance
* Can carry a total of 90 countermeasures
* [[GAU-4 (20 mm)|GAU-4]] cannon in the belly-suspended gunpod sports excellent ballistics, fire rate, damage, and ammo capacity
* Has a pulse Doppler radar, granting some chaff immunity and enabling SARH missiles to be used at low altitude
* AIM-9Ds are very good for a stock missile
* Lack of Agile Eagle slats improves energy retention (compared to the F-4E)

'''Cons:'''

* Poor turn rate
* Equipping the M61 gunpod adds a significant amount of drag, while a missile-only loadout is inadequate for high aspect and close range attacks
* Spey engines produce less thrust than J79-GE-17 engines at very high altitudes
* Has limited ground attack loadouts compared to other Phantoms

== History ==


===Background===
From the late 1950s onwards the British Government began looking to replace a number of its early second-generation jet aircraft. The RAF was looking to replace the [[Canberra_(Family)|English Electric Canberra]] in the long-range interdictor role, and the [[Hunter_(Family)|Hawker Hunter]] in the close air support role; meanwhile the Royal Navy was looking to replace their de Havilland Sea Vixens in the fleet air defense role<ref name="WikipediaPhantomUK">Wikipedia: McDonnell Douglas Phantom in UK service</ref>. Two aircraft programs were started to produce suitable replacements; the BAC TSR-2 was to be a highly advanced strike and reconnaissance aircraft to replace the Canberra. Meanwhile the Hunter and the Sea Vixen would be replaced by different versions of the P.1154; a Mach 2 capable VTOL aircraft developed from the P.1127 (the predecessor of famous Harrier Jump Jet). The Navy were not entirely happy with the idea of the navalized P.1154, believing that it did not suit their needs; and in 1964 they dropped out of the program, deciding to purchase the F-4 Phantom from America instead. In the same year a new government was elected and in 1965 cancelled both the TSR-2 and P.1154 programs on cost grounds, leaving the RAF without its much needed Canberra and Hunter replacements. The Government announced a plan to purchase the F-111K from America to replace the TSR-2 program (the F-111K would also eventually be cancelled on grounds of cost), while the Hunter would be replaced by F-4 Phantoms from America<ref name="BurkePhantom">Burke 2016</ref>.

===Development===
Both the Royal Navy and RAF were now set to purchase the F-4 Phantom. The RAF could have operated standard F-4 Phantoms (and to some extent would have preferred to)<ref name="BurkePhantom" />, however the aircraft was going to need modifications in order to be able to operate off of the UK's aircraft carriers, which were smaller than the ones Phantoms usually operated from. In a bid to help the British aviation industry (which had been hurt by a number of cancelled programs), and make the aircraft suitable for use by the Royal Navy it was agreed that all UK Phantoms would be significantly modified, by British companies, from their US counterparts. The most notable change would be the replacement of the American J79 turbojet engines with larger and more powerful Rolls-Royce Spey turbofans; a modified rear fuselage to accommodate the new engines would also be built by BAC, and the aircraft's radar system would be built under license by Ferranti<ref name="WikipediaPhantomUK" />.

It was decided that the UK Phantoms would be based off of the F-4J, which was then the primary version in service with the US Navy at the time<ref name="WikipediaPhantomUK" />. As the RAF and Royal Navy had differing requirements it was decided that two variants of the UK Phantom would be designed: the first variant, for the Royal Navy, would be designated F-4K or Phantom FG.1; while the RAF variant would be developed from the navy variant and be designated F-4M or Phantom FGR.2. Work began on modifying the F-4J to meet the Royal Navy's needs; the nose radome had to be made to hinge 180 degrees, to allow the Phantom fit on the smaller deck elevators of British carriers, and a telescopic nose gear was installed to allow the aircraft to sit pitched nose-up on the flight deck (by up to 11°), reducing take-off distance<ref name="WikipediaPhantomUK" />. The new engines were installed at a slight downwards angle to further increase take-off performance and the rear fuselage to be redesigned to both accommodate the new engines and cope with the increased heat they produced; the air intakes also had to be made larger, and additional intake doors added in the fuselage to provide the Speys with the airflow they required<ref name="BurkePhantom" />. Many other small changes were also made to UK Phantoms. The first F-4K prototype flew on 27 June 1966, with the First F-4M prototype flying on 17 February 1967.

===Service===
The first F-4Ks were delivered in April 1968 and were designated Phantom FG.1, early the following year they began test flights from HMS Eagle and the USS Saratoga. During the testing the intense heat produced by the downward-angled Spey engines, while the afterburner was engaged, caused the flight deck plating of the USS Saratoga to buckle<ref name="BurkePhantom" />. On-board HMS Eagle heavy-duty steel plating had to be welded to the flight deck; and be cooled using water from the ship's fire hoses between flights, in order to stop it from melting<ref name="SearlesPhantom">Searles n.d.</ref>. When the HMS Ark Royal was upgraded to operate Phantoms it had to have water-cooled blast deflectors and decking installed to prevent the Phantom's engines from damaging the flight deck <ref name="BurkePhantom" />. HMS Ark Royal had finished its refit in 1970, by which point the refit of HMS Eagle had been cancelled, along with plans to build two additional aircraft carriers. With the Navy now only having one carrier capable of operating Phantoms it was decided to reduce the Navy's Phantom fleet down to 28 aircraft, with the other 20 FG.1s being transferred to the RAF. The remaining Royal Navy Phantoms would serve on the HMS Ark Royal (R09) until her retirement.

The first F-4Ms entered RAF service in May 1969, filling the role of tactical strike aircraft; they were given the designation Phantom FGR.2 (with FGR standing for Fighter/Ground attack/Reconnaissance). The RAF's Phantom FGR.2 was overall very similar to the Navy's FG.1 variant, but had a number of changes; they used a slightly different version of Spey engines (the FG.1 had faster afterburner engagement to aid with aborted landings on aircraft carriers), and naval features like the telescopic nose gear, slotted tail, and cockpit-controlled wing folding were dropped. The FGR.2 also had different avionics, the radar was slightly different and additional functionality such as an inertial navigation / attack system was added, as well as modification needed to allow the FGR.2 to use a gunpod and reconnaissance pod, among other changes<ref name="GledhillPhantom">Gledhill 2017</ref>. Both the FGR.2 and FG.1 would later be modified with squared off tails, holding a radar warning receiver.

In 1970 Phantom FGR.2s were deployed to West Germany to serve the roles of ground attack, interdiction, and reconnaissance; while English Electric Lightnings covered bomber interception. Over the years it was determined that the increased range and weapons payload of the Phantom made it a better fit for defending the UK's airspace, than the Lightning; so from 1974 onwards Phantoms began to be withdrawn from Germany to serve in air defense roles; they were replaced in the Close Air Support role by the SEPECAT Jaguar. The Phantoms took over more and more of the air defense role from the Lightning; however the Lightning would remain in service until 1988 (retiring only a few years before the Phantoms). The Phantom FG.1s were withdrawn from Royal Navy service in 1978, with the decommissioning of HMS Ark Royal, and were transferred to the RAF to serve in air defense roles. The Phantoms were replaced in Navy service by the Harrier Jump Jet, which was able to operate from the Navy's new Invincible-class aircraft carriers.

Following the Falklands War in 1982 the UK deployed a Squadron of FGR.2s to defend the Falkland Islands from any future attack; however this left a gap in the Air defense of the UK Mainland. It was decided to purchase 15 more F-4Js from America to fill this gap. The F4-Js were upgraded to F-4S standard and entered service with the RAF on 19 October 1984 under the designation Phantom F.3 or F-4J(UK)<ref name="BurkePhantom" />. The Phantom remained the UK's primary Air defense aircraft until it was gradually replaced by the Panavia Tornado; the last FG.1s retired on 30 January 1990, the last F.3s retired on 31 January 1991, and the FGR.2 left RAF service on 1 November 1992. The FGR.2 was due to retire earlier however just before retirement it was called back into service to defend RAF Akrotiri, on Cyprus, during the First Gulf War<ref name="BurkePhantom" />.

A total of 48 Phantom FG.1s, 118 Phantom FGR.2s and 15 Phantom F.3s were built<ref name="WikipediaPhantomUK" />.

===Further development plans===
Prior to the Phantom's retirement from RAF service there had been a plan to retrofit them with an upgraded version of the Spey engine. A program was started to design the new engines; they would have various improvements, the most notable of which being new turbine blades, reportedly manufactured from a single metal crystal<ref name="ThrustSSC">SSC Programme Ltd 1997</ref>. These blades would increase the operating life of the engines under normal conditions, but also give the option of operating the engines at higher temperatures, and thus higher thrust (although this would come at the expense of reduced engine life). These engines were known as Spey 205s and had a maximum thrust of 25,000 lb (11,340 kgf)<ref name="ThrustSSC" />, compared to 20,515 lb (9,305 kgf) for the regular Spey engines; although it is unclear if they would be used at this thrust rating while in service. With the Phantom retired the Spey 205 program was cancelled, and no engines were produced under the Spey 205 name; however 12 Spey 202 engines had been upgraded to Spey 205 standard for testing (and are now generally referred to as Spey 205s, or Spey 202 hybrids)<ref name="BourneSSC">Bourne 1997</ref>. It is known that after the program was cancelled two of the Spey 205 prototypes, along with two standard Spey 202s were obtained by the ThrustSSC programme (the world's fastest car)<ref name="ThrustSSC" />, although reports vary on whether the car was fitted with Spey 202s or 205s when it completed its record-breaking run.

===Comparison with American Phantoms===
The Rolls-Royce Spey engines gave British Phantoms notably different performance to their American counterparts. At low altitude British Phantoms accelerated faster than standard F-4Js and had a higher top speed; it was estimated that they had a 30% shorter take-off distance and a 20% faster climb to altitude<ref name="WikipediaPhantomUK" />. The Spey turbofan engines were also more fuel efficient than the J-79 turbojets, giving British Phantoms a 10 - 15 % increase in range compared to American aircraft<ref name="GledhillPhantom" />. The main drawback of the British design was that the reshaped fuselage produced more drag than the original design, meaning that at high altitude British Phantoms were slower and performed worse than their American counterparts (British Phantoms topped out at about Mach 1.9 at altitude, while American Phantoms could reach Mach 2.1)<ref name="BurkePhantom" />.

== Media ==


;Skins

* [https://live.warthunder.com/feed/camouflages/?vehicle=f-4m_fgr2 Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]

;Videos
{{Youtube-gallery|DXovE9BD1a0|'''Should You Buy the Phantom FGR.2''' - ''Sako Sniper''}}

== See also ==


;Related development

* [[F-4 Phantom II (Family)]]

;Aircraft of comparable role, configuration and era

* Mikoyan-Gurevich [[MiG-21 (Family)]]
* SAAB [[SAAB 35 Draken (Family)|J35 Draken (Family)]]
* Dassault [[Mirage IIIC]]

== External links ==


* [https://forum.warthunder.com/index.php?/topic/468663-f-4m-phantom-fgr2/ Official data sheet - more details about the performance]
* [[Wikipedia:McDonnell_Douglas_Phantom_in_UK_service|[Wikipedia<nowiki>]</nowiki> McDonnell Douglas Phantom in UK service]]

===References===

;Citations
<references />

;Bibliography

* Bourne, Nigel. (1997). Development of the Rolls-Royce Military Spey Mk202 Engine. Retrieved from [http://www.thrustssc.com/ ThrustSSC]
* Burke, Damien. (2016). McDonnell-Douglas/BAC F-4K/M Phantom II. Retrieved from [https://www.thunder-and-lightnings.co.uk/phantom/history.php Thunder and Lightnings]
* Gledhill, David. (2017). Phantom in the Cold War: RAF Wildenrath 1977 - 1992. Barnsley: Pen & Sword Aviation.
* Searles, Dick. (n.d.). HMS Eagle Deck Trials 1969. Retrieved from [https://www.phantomf4k.org/video-library/hms-eagle-deck-trials-1969 Phantom F4K - Fleet Air Arm Royal Navy]
* SSC Program Ltd. (1997). The Story of the Rolls-Royce Spey. Retrieved from [http://thrustssc.com/ ThrustSSC]
* Wikipedia. (n.d.). McDonnell Douglas Phantom in UK service. Retrieved from [[wikipedia:McDonnell_Douglas_Phantom_in_UK_service|[Wikipedia] McDonnell Douglas Phantom in UK service]]

{{AirManufacturer McDonnell}}
{{Britain jet aircraft}}

Achilles (65 Rg.)

2023-05-20T17:36:34Z

U127172829: Some minor spelling errors, amount of ammo for commanders machine gun changed (300 to 400), and a few links added.

{{About
| about = premium British tank destroyer '''{{PAGENAME}}'''
| usage = the regular version
| link = Achilles
}}
{{Specs-Card
|code=uk_17_pdr_m10_achilles_norfolk_yeomanry
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}
}}

== Description ==

The '''{{Specs|name}}''' (shortened to '''{{specs|pseudonym}}''', full name '''17 pounder, Self-Propelled M10 Achilles (65th Anti-Tank Regiment)''') is a premium gift rank {{Specs|rank}} British tank destroyer {{Battle-rating}}. It was introduced as a [[wt:en/news/3472--en|premium pack]] in [[Update 1.53 "Firestorm"]] and removed from the store after the [[wt:en/news/4684-vday-victory-day-discounts-en/|2017 Victory Day sale]]. It has also been obtainable in the [[Warbonds|Warbond]] shop in [[wt:en/news/5243--en|January 2018]], [[wt:en/news/5858-news-how-can-you-get-premium-vehicles-warbonds-en|November 2018]] and [[wt:en/news/6463-news-how-can-you-get-premium-vehicles-warbonds-en|November 2019]]. It was also made available briefly in the store during the [[wt:en/news/6759/current|2020 D-Day sale]].

It was one of the first British tanks introduced in the game as an Achilles tank destroyer with the insignia of 7th Armored Division, 65th Anti-Tank Regiment "Norfolk Yeomanry".

The [[Achilles]] is based on the American [[M10 GMC]], but carries a [[Ordnance QF 17-pounder (76 mm)|17-pounder]] cannon as the main armament, making it an effective tank destroyer. Thanks to a well assigned BR, the Achilles won't feel in the wrong game even when facing higher rank tanks. The Achilles has plenty of firepower, especially once the Mk.8 APCBC shot is unlocked, which is more effective against the [[T-34 (1942)|T-34]]'s sloped armour. The 17-pdr cuts through enemy [[Pz.III M|Panzer III]] and [[Pz.IV H|IV]] (the shots enter the front and exit from the rear) so try to aim vital points to cause the maximum damage (first shot to the turret to disable enemy firepower). The T-34 is a bigger problem due to its sloped armour. When facing Soviet tanks, the first shot should always be to the gunner. The Mk.8 APCBC is quite able to penetrate the T-34 glacis even from a distance but keep in mind that the damage caused is unreliable (sometimes two or more shots are required to destroy a T-34, sometimes one shot is enough). The M10 mobility is not outstanding, but the Achilles is pretty capable to carry the player, the gun, and the team to where it needs to go.

Protection is not good. The sloped armor and the track links added to the front will protect the Achilles from some low caliber shots, but the vast majority of the enemies will be able to destroy the Achilles easily. Side armor is paper thin. The high profile and the very slow turret traverse (man-powered) are not suitable for close range combat so avoid deep flanking tactics.

== General info ==
=== Survivability and armor ===
{{Specs-Tank-Armour}}

'''Armor type:'''

* Rolled homogeneous armor
* Cast homogeneous armor (Gun mantlet, Transmission area)
* Structural steel (Counterweight)

{| class="wikitable"
|-
! Armour !! Front !! Sides !! Rear !! Roof
|-
| Hull || 38.1 mm (55°) ''Front glacis'' 50.8 mm (7-55°) ''Transmission area'' || 19.05 mm (38°) ''Top hull'' 25.4 mm ''Bottom hull''|| 19.05 (28-33°) ''Top Hull'' 25.4 mm (7-52°) ''Bottom hull'' || 19.05 mm ''Front'' 9.5 mm ''Rear''
|-
| Turret || 25.4 mm (66-88°) ''Turret front'' 57.15 mm (0-47°) ''Gun mantlet'' || 25.4 mm (22-46°) || 25.4 mm (1-29°) ''Turret rear'' 50 mm (0-50°) ''Counterweight'' || N/A
|}
'''Notes:'''

* Suspension wheels and tracks are 20 mm thick while the bogies are 10 mm thick.
* Belly armor is 12.7 mm thick.
* Hull rear sides are protected by attached grousers that gives 20 mm of extra armor.
* Tracks placed on the front transmission area provide 30 mm extra armor.

=== Mobility ===
{{Specs-Tank-Mobility}}


{{tankMobility|abMinHp=582|rbMinHp=363|AoAweight=0.32}}

=== Modifications and economy ===
{{Specs-Economy}}

== Armaments ==
{{Specs-Tank-Armaments}}
=== Main armament ===
{{Specs-Tank-Weapon|1}}

{{main|QF 17-pounder (76 mm)}}

{| class="wikitable" style="text-align:center" width="100%"
|-
! colspan="5" | [[QF 17-pounder (76 mm)|76 mm QF 17-pounder]] || colspan="5" | Turret rotation speed (°/s) || colspan="4" | Reloading rate (seconds)
|-
! Mode !! Capacity !! Vertical !! Horizontal !! Stabilizer
! Stock !! Upgraded !! Full !! Expert !! Aced
! Stock !! Full !! Expert !! Aced
|-
! ''Arcade''
| rowspan="2" | 50 || rowspan="2" | -10°/+30° || rowspan="2" | ±180° || rowspan="2" | N/A || 4.0 || 5.5 || 6.7 || 7.4 || 7.8 || rowspan="2" | 8.71 || rowspan="2" | 7.70 || rowspan="2" | 7.10 || rowspan="2" | 6.70
|-
! ''Realistic''
| 2.7 || 3.1 || 3.8 || 4.2 || 4.5
|-
|}

==== Ammunition ====
{{:QF 17-pounder (76 mm)/Ammunition|Shot Mk.6, Shell Mk.1, Shot Mk.4, Shot Mk.8, 17pdr Shell SS Mk.1}}

==== [[Ammo racks]] ====
[[File:Ammoracks_Achilles.png|right|thumb|x250px|[[Ammo racks]] of the Achilles.]]

{| class="wikitable" style="text-align:center"
|-
! Full ammo
! 1st rack empty
! 2nd rack empty
! 3rd rack empty
! 4th rack empty
! 5th rack empty
! 6th rack empty
! Visual discrepancy
|-
| '''50''' || 48 ''(+2)'' || 45 ''(+5)'' || 34 ''(+16)'' || 23 ''(+27)'' || 12 ''(+38)'' || 1 ''(+49)'' || Yes
|-
|}

Turret empty: 45 ''(+5)''

==== Optics ====

{| class="wikitable" style="text-align:center" width="50%"
! colspan="3" | {{PAGENAME}} [[Optics]]
|-
! Which ones
! Default magnification
! Maximum magnification
|-
! Main Gun optics
| x1.85 || x3.5
|-
! Comparable optics
| colspan="2" | [[M10 GMC]]
|-
|}

=== Machine guns ===
{{Specs-Tank-Weapon|2}}

{{main|M2HB (12.7 mm)}}

{| class="wikitable" style="text-align:center" width="50%"
|-
! colspan="5" | [[M2HB (12.7 mm)|12.7 mm M2HB]]
|-
! Mount !! Capacity (Belt) !! Fire rate !! Vertical !! Horizontal
|-
| Pintle || 400 (200) || 577 || -10°/+70° || ±60°
|-
|}

== Usage in battles ==


The Achilles is best used for sniping and shoot and scoot tactics. Find a good spot where to shoot at enemies, aim carefully (RB need a good use of mils range estimation) and enjoy the fireworks! To make full use of its decent sniping capacity, find a spot that:

* overlooks key passageway / street / battle area
* is not too close to the frontline
* has slopes, hard covers or bushes
* is not too hard to get to

With a location like that, the Achilles can utilize its -10° gun depression and use hull down. Its turret front and mantlet can consistently cause ricochets especially in a downtier. Looming behind bushes, an Achille's well aimed shots should be able to knock out most enemy tanks at the battle rating range from long range. Even if you get spotted, any slope or hard covers will provide protection for you.

Keep in mind the low fire rate (compared to other 17-pdr AFVs). Once the Achilles has destroyed (or damaged) the enemy the best thing to do is to relocate. Don't stay in the same spot for too long: the Achilles has weak armor and an open top. Artillery barrages will cripple the Achilles or the crew.

Another thing to think about is the turret traverse. Yes... It is **really** slow. Therefore, some changes need to be made in the typical playstyle. If the Achilles need to target an enemy quickly, do not rely on the turret. Instead, traverse the entire tank so that the hull is facing the enemy head-on, similar to turretless, casemate style tank destroyers. To avoid situations like this, stay way back, avoiding urban areas and other areas where the Achilles will be flanked easily.

'''Enemies worth noting:'''

[[R3 T20 FA-HS]]: this vehicle is the exact opposite tank when comparing to an Achilles: extremely high top speed, great traverse and fast gun rotation. A well-maneuvered R3 can easily circle around the Achilles and shoot AP shells through the thin side, while the Achilles struggles to get the gun on target even when traversing the hull with the gun. If you know an R3 is around, you better turn your hull towards the possible direction and be ready to engage. Move the hull with the gun to target quicker. Even if you miss, the [[M2 Browning (12.7 mm)|M2 Browning]] can still penetrate the R3 and knock out its crews. Note that a side shot on the R3 does not guarantee a kill as the crew are pretty separated. The R3 can run away and repair for another attack. A frontal shot, however, is likely to knock it out with a single shot as the crew members are all lined up.

[[8,8 cm Flak 37 Sfl.]]: also known as the "Flak truck", it is rather hard to knock out due to the fact that its armor is so thin that almost every shell will over-penetrate, dealing almost no critical damage. Plus this vehicle mostly face their side to the targets, making it even harder to kill them as the crew are all far apart. So it can usually take quite some hits and take out the shooters one by one. As the shooter, aim for the left side of its turret first to disable its gunner first, then knock out the rest of its crew (right turret & driving compartment). Do not hope that the M2 HB can kill the crews, the Flak truck's armor is too thick for any MG to penetrate.

=== Pros and cons ===


'''Pros:'''

* Great gun (17-pounder!)
* High level of penetration. Will often pass through the front of lighter vehicles and leave through the back.
* Premium vehicle - instant access to the best shell (Shot Mk.8)
* Good speed
* 5 crew members
* .50 cal Heavy machine gun on top to fight lightly armored tanks and aircraft
* Sloped armor makes incoming rounds more likely to ricochet
* Spare tracks that provided some limited protection on the front and the rear section of the side armor.
* Good gun depression

'''Cons:'''

* Armor is rather thin
* Big ammo racks
* Open top turret makes it vulnerable to artillery and strafing planes
* Very slow turret traverse
* Lack of explosive filler for AP shells
* Handling is poor on some rough terrain before mobility modifications are researched
* Reverse speed is bad
* Low ammo reserve for Commander's machine gun (400 rds total)

== History ==


===Development===
The [[M10 GMC|M10 tank destroyer]] was developed in 1942 to fulfil the anti-tank doctrine established by the US military. The doctrine, creating the tank destroyer force, was established with the objective to stop German blitzkrieg tactics by attacking the tanks. Unlike the other armored fighting vehicles in the theatre, the tank destroyers were made to be placed in reserves to counter any breach in the front lines by taking out the enemy with ambushes. This role led to the desire for a fast vehicle with a powerful gun; armor was not a concern due to the emphasis in speed. The design ended up taking a turret design developed from the [[M6A1|M6A1 Heavy Tank]] and the body from the [[M4A2| M4A2 Sherman]], this with the 3-inch 1918 gun, provided the backbone of the American tank destroyer force in much of World War II. In total, 6,706 M10s and its variants were produced between September of 1942 to 1943 of the same month.

===British Use===
These M10s were given out to America's allies, though the British were the most well-known of these users, receiving about 1,650 M10s from the Americans from 1943 onward. The British designated the M10s under their service as the '''Achilles''' and unlike popular usage, was called that for both the 3-inch gun variant (''Achilles I/II'') and the variant mounting the 17-pounder (''Achilles Ic / IIc''). Though in most usage, the vehicle was called the ''17pdr M10'', or ''17pdr SP M10'', or even the ''"Firefly"'', despite that name being used for a different design.

The British first received the M10s with the 3-inch cannons, which were much more powerful than the British tank armament at the time, giving them an edge in many tank confrontations in the North African Campaign. It was around 1943 that conversion is done onto the M10 to increase its firepower capabilities against the gradually upgraded German tank designs such as the [[Tiger H1|Tiger I]] and the [[Panther D|Panthers]]. The conversion used one of the best Allied anti-tank guns at the time, the 17-pounder, which could penetrate about 140 mm of armor at 500 m away with APCBC rounds, and 209 mm at the same distance with APDS rounds (Armor-Penetrating Discarding Sabot). The conversion is done onto the M10 also required a counterweight to be placed on the 17-pounder to compensate the heavier weight of the 17-pounder compared to the 3-inch gun. This gave the M10 Achilles a much more defining profile and attempts were made to hide this larger cannon length with optical illusion. Aside from the gun conversion, the M10 Achilles also had an extra 17 mm of armor welded onto the front and sides of the hull for added protection, plus a 20 mm shield on the top of the turret to compensate for the open-turret design. About 1,000 M10 Achilles with the 17-pounders were ordered, but by D-Day, only 124 were available, and 816 were done by the end of the year. The low number of these converted Achilles made meant that any lost units were hard to replace with a 17-pounder one, and the disgruntled crew would be issued an M10 with a 3-inch gun instead. In the end, about a total of 1,000 Achilles were converted into 17-pounder ones by the end of World War II, making the M10 Achilles the second-most numerous design to mount the 17-pounder, coming before the [[Sherman Firefly|Sherman Firefly]].

The Achilles were issued out as part of the Royal Artillery in armored divisions in anti-tank regiments. One of such regiments was the '''65th Anti-Tank Regiment''' assigned to the 7th Armored division during 1942 and onward until the end of the war.

===Combat Usage===
The British doctrine with the Achilles differed from the Americans who saw it as a reserve tank destroyer. The British viewed the Achilles as a mobile anti-tank gun, thus the Achilles served in a role akin to the [[StuG III G|StuG III]] in German service, moving the 17-pounder into position to take a shot on incoming German [[Tiger E|Tiger]] or [[Panther G|Panther]] tanks. These Achilles were used more with Churchill tank units rather than the medium tanks due to the lack of 17-pounder equipped on [[Churchill Mk III|Churchills]] while the medium tanks have the Firefly available for use. Disadvantages with the M10 Achilles design were carried over from the original, the slow turret traverse speed, high profile, and open-top turret made it a rather harder vehicle to use than a regular tank, but it still had its advantages and was still suitable for the role it had.

The Achilles were deployed on D-Day onward in artillery forces in anti-tank regiments in armored divisions. A typical anti-tank regiment would have four batteries, two with towed 17-pounders, one equipped with 17-pounder Achilles, and another with regular M10s with the 3-inch gun (though replaced with another Achilles unit once more were available). A notable event with the Achilles was during Operation Charnwood, where Achilles in the 62nd Anti-Tank Regiment fought off a German counterattack comprising of [[Pz.IV H|Panzer IVs]] and [[Panther G|Panthers]] from the 12th Panzer Regiment were routed by the Achilles 17-pounder fires, destroying about 13 German tanks with the loss of four Achilles knocked out and four more damaged.

== Media ==


;Skins

* [https://live.warthunder.com/feed/camouflages/?vehicle=uk_17_pdr_m10_achilles_norfolk_yeomanry Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]

== See also ==
''Links to the articles on the War Thunder Wiki that you think will be useful for the reader, for example:''

* ''reference to the series of the vehicles;''
* ''links to approximate analogues of other nations and research trees.''

== External links ==


* [[wt:en/devblog/current/827/|[Devblog] Pioneering British Tanks in War Thunder with developer's answers]]
* [[Wikipedia:17pdr_SP_Achilles|[Wikipedia] 17pdr SP Achilles]]

{{TankManufacturer Department of Tank Design}}
{{Britain tank destroyers}}
{{Britain premium ground vehicles}}