Difference between revisions of "CW-21"

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{{Specs-Card|code=cw_21}}
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{{Specs-Card
 +
|code=cw_21
 +
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}
 +
|cockpit=cockpit_cw_21.jpg
 +
}}
  
 
== Description ==
 
== Description ==
 
<!-- ''In the description, the first part should be about the history of and the creation and combat usage of the aircraft, as well as its key features. In the second part, tell the reader about the aircraft in the game. Insert a screenshot of the vehicle, so that if the novice player does not remember the vehicle by name, he will immediately understand what kind of vehicle the article is talking about.'' -->
 
<!-- ''In the description, the first part should be about the history of and the creation and combat usage of the aircraft, as well as its key features. In the second part, tell the reader about the aircraft in the game. Insert a screenshot of the vehicle, so that if the novice player does not remember the vehicle by name, he will immediately understand what kind of vehicle the article is talking about.'' -->
[[File:GarageImage_{{PAGENAME}}.jpg|420px|thumb|left]]
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The CW-21 was a fighter interceptor based on the CW-19. Intended to be a high altitude fighter with good climb rate and good armament, it caught the interest of the Chinese government. China received 3 fully built CW-21s and 27 kits to be armed. Another three were sent to China and given to the Flying Tigers group. Other variants of the CW-21 were developed, like the CW-21B, which was used by the Dutch in an effort to modernize their air force. However, after the defeat to Germany, these aircraft were given to the Dutch East Indies. The CW-21 ended up being easy prey to the Japanese fighters, and their lightweight construction meant that cracks and structural failures were more common than in other planes.
{{break}}
 
The '''{{Specs|name}}''' is a rank {{Specs|rank}} Chinese fighter {{Battle-rating}}. It was introduced in [[Update 1.91 "Night Vision"]].  
 
  
A relatively untested aircraft so far, the '''CW-21''' will be a surprise to pilots stepping into the Chinese tech tree. The first few Chinese aircraft can be a struggle to fly and master, however, the CW-21 picks up the slack the moment it gets airborne. While sitting on the airfield, you will notice quickly that this fighter is a relatively small monoplane fighter, akin to a P-26. During the take-off roll, you instantly notice the extremely short take-off span, as it begins lifting off when reaching 145 kph (90 mph). While speaking of speed, the CW will quickly outrun and outpace the competition, leading to a lot of the primary biplane opposition simply being unable to catch up and get within firing distance.  
+
Introduced in [[Update 1.91 "Night Vision"]], the CW-21 is a unique and capable fighter that excels in high altitude capabilities. It has an amazing climb rate good top speed, and so will it leave most of the other planes behind when it takes off and starts climbing. Unlike many aircraft, it's very competitive even in uptiers when facing aircraft like the A6M2 or the P-51, and in downtiers, it outmatches almost every opponent as long as it uses its good climb rate to get an advantageous position. The CW-21s armament is average for its rank, with 2 x .50 calibre M2s and 2 x .30 calibre M1919s. Even though this armament is not the best and lacks cannons, is enough to destroy any plane that it will fight with a few well-placed shots, while also having a good ammo pool and good range compared to most cannons at its BR. Thanks to its lightweight construction, the CW-21 is also very nimble, outmanoeuvring most aircraft in battle, except for biplanes and Japanese planes which are notorious for their excellent agility.
 
 
When it comes to firepower, this bird has talons and easily uses its 2 x.50 calibre M2s plus 4 x.30 calibre M1919s to decimate any plane that crosses its path. While it can punch hard with its guns, you might be more than surprised to know that the CW can take a hit too. The wings, strong as they are, are the most durable flight construction in the game and able to take round after round, hit after hit from the vast multitude of armaments from contemporary aircraft it comes up against, ranging from the weak Japanese 7.7 mm, to the heavy impacting 20 mm ShvaK cannons fielded by the Soviets. Not that you'll be getting hit much, as a competent pilot will tell you manoeuvrability is key and an agile plane it is. The turn time is easily competitive with most if not all biplanes, except possibly the I-153 that intrinsically trumps all other aircraft when it comes to turning and turn fighting. All in all, the CW-21 is a powerhouse, ready to zoom in, shred and ignite the enemy and shrug off all incoming fire.
 
  
 
== General info ==
 
== General info ==
 
=== Flight performance ===
 
=== Flight performance ===
''Describe how the aircraft behaves in the air. Speed, manoeuvrability, acceleration and allowable loads - these are the most important characteristics of the vehicle.''
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{{Specs-Avia-Flight}}
 +
<!-- ''Describe how the aircraft behaves in the air. Speed, manoeuvrability, acceleration and allowable loads - these are the most important characteristics of the vehicle.'' -->
 +
 
 +
The CW-21 is excellent at diving because of its slick wing design. The wings enable the planes ultimate flight performance with the 1,000 hp (750 kW) Wright R-1820-G5 nine-cylinder air-cooled radial engine. The wings are thin but long producing enough lift with the smallest amount of drag. The speed comes with the extremely light semi-monocoque structure which decreases the weight hence improves the performance.
  
{| class="wikitable" style="text-align:center"
+
{| class="wikitable" style="text-align:center" width="70%"
|-
+
! rowspan="2" | Characteristics
! colspan="8" | Characteristics
 
|-
 
! colspan="8" | ''Stock''
 
|-
 
 
! colspan="2" | Max Speed<br>(km/h at 3,700 m)
 
! colspan="2" | Max Speed<br>(km/h at 3,700 m)
! rowspan="2" | Max altitude<br>(meters)
+
! rowspan="2" | Max altitude<br>(metres)
 
! colspan="2" | Turn time<br>(seconds)
 
! colspan="2" | Turn time<br>(seconds)
! colspan="2" | Rate of climb<br>(meters/second)
+
! colspan="2" | Rate of climb<br>(metres/second)
! rowspan="2" | Take-off run<br>(meters)
+
! rowspan="2" | Take-off run<br>(metres)
 
|-
 
|-
 
! AB !! RB !! AB !! RB !! AB !! RB
 
! AB !! RB !! AB !! RB !! AB !! RB
 
|-
 
|-
| 480 || 465 || {{Specs|ceiling}} || 14.2 || 15.0 || 13.4 || 13.4 || 343
+
! Stock
|-
+
| 480 || 465 || rowspan="2" | {{Specs|ceiling}} || 14.2 || 15.0 || 13.4 || 13.4 || rowspan="2" | 343
! colspan="8" | ''Upgraded''
 
|-
 
! colspan="2" | Max Speed<br>(km/h at 3,700 m)
 
! rowspan="2" | Max altitude<br>(meters)
 
! colspan="2" | Turn time<br>(seconds)
 
! colspan="2" | Rate of climb<br>(meters/second)
 
! rowspan="2" | Take-off run<br>(meters)
 
 
|-
 
|-
! AB !! RB !! AB !! RB !! AB !! RB
+
! Upgraded
|-
+
| 533 || 505 || 13.8 || 14.0 || 24.5 || 18.2
| ??? || 505 || {{Specs|ceiling}} || ??.? || 14.0 || ??.? || 18.2 || 343
 
 
|-
 
|-
 
|}
 
|}
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==== Details ====
 
==== Details ====
 
[[File:CW-21_olife-001.jpg|450px|thumb|right|The sleek '''{{PAGENAME}}''' in flight.]]
 
[[File:CW-21_olife-001.jpg|450px|thumb|right|The sleek '''{{PAGENAME}}''' in flight.]]
{| class="wikitable" style="text-align:center"
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{| class="wikitable" style="text-align:center" width="50%"
 
|-
 
|-
 
! colspan="5" | Features
 
! colspan="5" | Features
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|}
 
|}
  
{| class="wikitable" style="text-align:center"
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{| class="wikitable" style="text-align:center" width="50%"
 
|-
 
|-
! colspan="5" | Limits
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! colspan="7" | Limits
 
|-
 
|-
! rowspan="2" | Wing-break speed<br>(km/h)
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! rowspan="2" | Wings (km/h)
! rowspan="2" | Gear limit<br>(km/h)
+
! rowspan="2" | Gear (km/h)
! rowspan="2" | Combat flaps<br>(km/h)
+
! colspan="3" | Flaps (km/h)
 
! colspan="2" | Max Static G
 
! colspan="2" | Max Static G
 
|-
 
|-
! + !! -
+
! Combat !! Take-off !! Landing !! + !! -
 
|-
 
|-
| {{Specs|destruction|constructions}} || {{Specs|destruction|chassis}} || 380 || ~10 || ~5
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| 735 <!-- {{Specs|destruction|body}} --> || {{Specs|destruction|gear}} || 355 || 322 || 240 || ~10 || ~5
 
|-
 
|-
 
|}
 
|}
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{| class="wikitable" style="text-align:center"
 
{| class="wikitable" style="text-align:center"
 
|-
 
|-
! colspan="4" | Optimal velocities
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! colspan="4" | Optimal velocities (km/h)
 
|-
 
|-
! Ailerons<br>(km/h)
+
! Ailerons !! Rudder !! Elevators !! Radiator
! Rudder<br>(km/h)
 
! Elevators<br>(km/h)
 
! Radiator<br>(km/h)
 
 
|-
 
|-
 
| < 280 || < 260 || < 450 || > 250
 
| < 280 || < 260 || < 450 || > 250
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|}
 
|}
  
{| class="wikitable" style="text-align:center"
+
=== Survivability and armour ===
|-
+
{{Specs-Avia-Armour}}
! colspan="3" | Compressor (RB/SB)
+
<!-- ''Examine the survivability of the aircraft. Note how vulnerable the structure is and how secure the pilot is, whether the fuel tanks are armoured, etc. Describe the armour, if there is any, and also mention the vulnerability of other critical aircraft systems.'' -->
|-
+
 
! colspan="3" | Setting 1
+
The {{PAGENAME}} is about as fragile as it looks as far as combat damage is concerned. It does not have any sort of armour protection whatsoever, a historical design decision to minimize weight and maximize its rate of climb. While the resulting flight performance is nothing short of spectacular, it renders the pilot very vulnerable to being knocked out, even by low-calibre machine guns. For this reason, head-ons should be avoided, and when being tailed by an enemy, evasive manoeuvres are very important. The fuel tanks are located in the wings and are at the very least self-sealing.
|-
+
 
! Optimal altitude
+
Upon its initial release, the {{PAGENAME}} was quite infamous for having literally unbreakable wings that would stay intact after suffering critical damage, but this has since been patched. Attempting to use the wings as a melee weapon is no longer recommended.
! 100% Engine power
 
! WEP Engine power
 
|-
 
| 1,829 m || 850 hp || 1,000 hp
 
|-
 
! colspan="3" | Setting 2
 
|-
 
! Optimal altitude
 
! 100% Engine power
 
! WEP Engine power
 
|-
 
| 4,633 m || 750 hp || 882 hp
 
|-
 
|}
 
  
=== Survivability and armour ===
+
=== Modifications and economy ===
''Examine the survivability of the aircraft. Note how vulnerable the structure is and how secure the pilot is, whether the fuel tanks are armoured, etc. Describe the armour, if there is any, and also mention the vulnerability of other critical aircraft systems.''
+
{{Specs-Economy}}
  
 
== Armaments ==
 
== Armaments ==
 +
{{Specs-Avia-Armaments}}
 
=== Offensive armament ===
 
=== Offensive armament ===
 +
{{Specs-Avia-Offensive}}
 
<!-- ''Describe the offensive armament of the aircraft, if any. Describe how effective the cannons and machine guns are in a battle, and also what belts or drums are better to use. If there is no offensive weaponry, delete this subsection.'' -->
 
<!-- ''Describe the offensive armament of the aircraft, if any. Describe how effective the cannons and machine guns are in a battle, and also what belts or drums are better to use. If there is no offensive weaponry, delete this subsection.'' -->
{{main|Browning M2 (12.7 mm)|Browning (7.62 mm)}}
+
{{main|M2 Browning (12.7 mm)|Browning (7.62 mm)}}
  
 
The '''''{{PAGENAME}}''''' is armed with:
 
The '''''{{PAGENAME}}''''' is armed with:
  
* 2 x 12.7 mm Browning M2 machine guns, nose-mounted (200 rpg = 400 total)
+
* 2 x 12.7 mm M2 Browning machine guns, nose-mounted (200 rpg = 400 total)
 
* 2 x 7.62 mm Browning machine guns, nose-mounted (500 rpg = 1,000 total)
 
* 2 x 7.62 mm Browning machine guns, nose-mounted (500 rpg = 1,000 total)
 +
 +
The armament of the CW-21 is fairly respectable compared to other aircraft it faces, although is nothing particularly special. While the ammo count is fairly standard in comparison to similar aircraft it can still leave something to be desired and can cause you problems, particularly if you have poor trigger discipline. All the guns are nose mounted, this makes aiming easier and means you do not need to worry about convergence.
  
 
== Usage in battles ==
 
== Usage in battles ==
The CW-21 should be used as a fighter. Excelling in turns, acceleration, and hard hitting guns, it is very easy to dogfight other planes at its BR of 2.0. Your main composition will sometimes be bi-planes and some bi-planes can out turn you. However, the CW-21 against monoplanes, is where it really shines. It can easily out turn other planes like the He-100 or even the He-112 which is crucial in a dogfight. The CW-21 does not have any CAS potential other than knocking out light targets like AAA and armored vehicles, so you're mainly going to kill planes.
+
<!-- ''Describe the tactics of playing in the aircraft, the features of using aircraft in a team and advice on tactics. Refrain from creating a "guide" - do not impose a single point of view, but instead, give the reader food for thought. Examine the most dangerous enemies and give recommendations on fighting them. If necessary, note the specifics of the game in different modes (AB, RB, SB).'' -->
 +
 
 +
The CW-21 should be mainly used as a fighter. Excelling in turns, acceleration, with hard-hitting guns, it is very easy to dogfight other planes at its battle rating. Your main composition will sometimes be biplanes and some biplanes can out turn you. However, the CW-21 against monoplanes is where it really shines. It can easily out turn other planes like the He 100 or even the He 112 which is crucial in a dogfight. The CW-21 does not have any close air support potential other than knocking out light targets like anti-aircraft artillery and armoured vehicles, so the main targets will be other planes.
 +
 
 +
The CW-21 can outclimb practically any other fighter on the battlefield. While it is a good dogfighter, it excels in diving attacks, where enemies can be eliminated in a pass or two, and if not, the extra energy advantage makes the ensuing dogfights much easier. Cruise at high altitude, pick out a target and swoop down to begin the engagement, using the great handling to stay on the target's tail. If the fight is not going as well as expected, it is not difficult to disengage and climb back to safety, though it pays to fly carefully and watch out for bullets coming in from behind.
 +
 
 +
While intercepting bombers is easy, even the weakest of defensive armaments can do a serious number on the {{PAGENAME}}, possibly ending the engagement abruptly with a pilot snipe. Study the layout of enemy bombers and only approach from angles that are not covered by turrets, or alternatively wait for a teammate to join in and distract the opponent's fire. Note that bringing down large aircraft can use up a large amount of the {{PAGENAME}}'s limited ammunition supply.
 +
 
 +
Something to note is that the {{PAGENAME}}'s incredibly lightweight (it weighs less than an I-16) means that the energy retention after dives leaves something to be desired. The climb rate compensates for the mediocre top speed somewhat since altitude can be converted into speed, but this bonus will be quickly lost. Avoid prolonged chases against faster aircraft, otherwise one may be both unable to catch up and drained of energy.
 +
 
 +
Perhaps the only other opponent capable of giving the {{PAGENAME}} a run for its money in terms of performance is the German [[He 100 D-1]]. The Heinkel also has a very good climb rate and enjoys superior speed, though it has worse manoeuvrability and inferior armament. While the {{PAGENAME}} still has a better climb rate, He 100 pilots can build up speed in level flight and zoom climb to catch up, and the three 7.92 mm machine guns are still more than enough to dispatch the {{PAGENAME}}. Watch He 100s warily, be prepared to dodge them, and try to land a few hits - the He 100 is incredibly fragile and even a stray bullet can ruin its cooling system, forcing the pilot to return to base or burn up.
 +
 
 +
'''Against the CW-21:'''
 +
 
 +
* Turnfighter (or biplane): all reserve biplanes (e.g. [[Ki-10 (Family)|Ki-10]], [[He 51 (Family)|He 51]]) can easily out-turn the CW-21, though they cannot out-climb or out-run it, thus the aggressive and active side will usually be the CW-21, forcing turn-fighters into a passive disadvantage. When a CW-21 dives on you, start banking to one side and turn under its negative G area as soon as the distance is <700 m. This is a very common tactic to force an abortion on a BnZ fighter. After a few successful dodges, the CW-21 will usually lose some altitude and speed. They might even run out of 12.7 mm bullets. If they lose patience and try to turnfight you, lure them into flat, continuous turns. Although the CW-21 is also a great turner, it still cannot sustain its turn rate better than a biplane/dedicated turn-fighter (e.g. [[A6M2]]), but you can. Try not to get into vertical manoeuvres, as that might allow the CW-21 to use its energy & climb rate advantage.
 +
 
 +
* Jack-of-all-trades fighter: this may be the hardest situation to deal with and requires more skills on combining manoeuvres and managing energy, as the CW-21 itself is a jack of all trade aircraft, so it is a duel between the same type. As mentioned before, the CW-21 climbs, turns and runs really well against common fighters at this BR (e.g. [[Ki-43-I|Ki-43]]). If you have an altitude advantage over it, perform conventional BnZ. Do not lose patience if they dodge your dives again and again, instead keep the pressure up and gradually force it down to the deck, then it is your prey. If it gets on your tail, combine evasive manoeuvres like barrel rolls, scissors, etc to force an overshoot or even a reversal. Remember to keep your speed up even if that means diving and losing altitude, most planes require some airspeed to manoeuvre the best.
 +
 
 +
* High-speed BnZ fighter: these aircraft generally require an altitude advantage to unleash their speed. Unless you are so fast that you can simply outrun the CW-21 (e.g. [[He 100 D-1|He 100]]), get higher before diving. You have to pull up high after each dive, no matter how little damage the pass did, because if you do not pull up the CW-21 can follow up or even stick to your tail for some split seconds, and you will get hit. Speed is your best friend at all times.
 +
 
 +
* Attacker/bomber: a good choice when being boom-and-zoomed by a CW-21 is to steeply dive to the deck. This does two jobs: 1) it gains you speed and separation between you two, making the CW-21 harder to aim at you, and 2) it drags the CW-21 to the deck too, if they want to get this kill. This eliminates their altitude advantage and creates opportunities for your teammates. With you racing at treetop level and the CW-21 following behind, you should get quite some time to aim carefully at its big radial engine. If you are rugged (e.g. [[Do 17 Z-7]]) or heavily armed (e.g. [[SAAB 18 (Family)|B18]]) you might even make it run out of ammo or destroy it with your gunners.
  
 
=== Manual Engine Control ===
 
=== Manual Engine Control ===
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|-
 
|-
 
| Controllable || Controllable<br>Not auto controlled || Not controllable<br>Not auto controlled || Not controllable<br>Not auto controlled || Separate || Controllable<br>2 gears || Not controllable
 
| Controllable || Controllable<br>Not auto controlled || Not controllable<br>Not auto controlled || Not controllable<br>Not auto controlled || Separate || Controllable<br>2 gears || Not controllable
|-
 
|}
 
 
=== Modules ===
 
{| class="wikitable"
 
! Tier
 
! colspan="2" | Flight performance
 
! Survivability
 
! colspan="2" | Weaponry
 
|-
 
| I
 
| Fuselage repair
 
| Radiator
 
|
 
|
 
| Offensive 7 mm
 
|-
 
| II
 
|
 
| Compressor
 
| Airframe
 
| Offensive 12 mm
 
|
 
|-
 
| III
 
| Wings repair
 
| Engine
 
|
 
|
 
| New 7 mm MGs
 
|-
 
| IV
 
|
 
| Engine injection
 
| Cover
 
| New 12 mm MGs
 
|
 
 
|-
 
|-
 
|}
 
|}
  
 
=== Pros and cons ===
 
=== Pros and cons ===
<!--Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".-->
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<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' -->
  
 
'''Pros:'''
 
'''Pros:'''
Line 184: Line 145:
 
* Respectable firepower for the rank
 
* Respectable firepower for the rank
 
* Turn rate is on par with the early Spitfires and even A6Ms
 
* Turn rate is on par with the early Spitfires and even A6Ms
* .50 calibre API at this rank is very dangerous
+
* Climb rate is very good for its rank
* Mediocre energy retention
+
* Good dive characteristics - difficult to induce compression, wings will not readily break
 +
* Speed is respectable and can be used to outrun opponents
  
 
'''Cons:'''
 
'''Cons:'''
  
* Not very fast
+
* Mediocre energy retention
* Very fragile
+
* No armour
* Climb rate is not the best for the rank
+
* Ammo can run out fast with poor trigger discipline
* Ammo can run out fast if you're not careful enough
 
  
 
== History ==
 
== History ==
''Describe the history of the creation and combat usage of the aircraft in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the vehicle and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Vehicle-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the vehicle's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).''
+
<!-- ''Describe the history of the creation and combat usage of the aircraft in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the vehicle and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Vehicle-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the vehicle's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' -->
 +
 
 +
The Curtiss-Wright 21 was a lightweight fighter-interceptor based on the CW-19. {{PAGENAME}} designer, George A. Page, only emphasized the plane to have an incredible rate of climb and to not dogfight. It would climb away from a dogfight instead of dog-fighting. The U.S. wouldn't adopt the plane as they wanted a plane with low-level dogfight capability, and to not only excel solely in climbing. George A. Page knew this and designed the plane mainly for exporting.
 +
 
 +
Intrigued by the {{PAGENAME}}'s performance, China looked into the {{PAGENAME}} furthermore with a prototype being delivered to China. During a discussion about the {{PAGENAME}}, a prototype {{PAGENAME}} shot down an Italian BR.20. China decided to buy some with China receiving 3 completely built {{PAGENAME}}'s and 27 kits. Another three {{PAGENAME}}'s were delivered to China and sent to the "Flying Tigers" group. They intended to use the {{PAGENAME}} for attacking Japanese reconnaissance but ended up crashing due to poor visibility.
 +
 
 +
Meanwhile, Curtiss-Wright was developing the CW-21B. The CW-21B had inward retractable gears, instead of the gears being retracted into the fairings beneath each wing. The CW-21B also sported hydraulic control surfaces. The CW-21B did end up having a lower climb rate but did have a higher top speed. The Dutch ordered 24 CW-21B's in an effort to obtain modern aircraft, however, it was too late to receive them as they surrendered to the Germans. The Dutch ended up giving the CW-21B's to the Dutch East Indies (now Indonesia). After assembling the newly acquired CW-21B's, they started using them. They later ended up finding cracks on some of their CW-21B's and grounded them. This was due to the very lightweight construction of the CW-21B. These CW-21B's were easy prey to Japanese planes and most were destroyed on the ground as well as the few which were able to fly.
  
 
== Media ==
 
== Media ==
''Excellent additions to the article would be video guides, screenshots from the game, and photos.''
+
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' -->
 +
 
 +
;Skins
 +
 
 +
* [https://live.warthunder.com/feed/camouflages/?vehicle=cw_21 Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]
  
 
== See also ==
 
== See also ==
Line 207: Line 178:
  
 
== External links ==
 
== External links ==
''Paste links to sources and external resources, such as:''
+
<!-- ''Paste links to sources and external resources, such as:''
 +
* ''topic on the official game forum;''
 +
* ''other literature.'' -->
  
* ''topic on the official game forum;''
+
* [https://forum.warthunder.com/index.php?/topic/474721-curtiss-wright-cw-21-demon/ Official data sheet - more details about the performance]
* ''encyclopedia page on the aircraft;''
 
* ''other literature.''
 
  
 +
{{AirManufacturer Curtiss}}
 
{{China fighters}}
 
{{China fighters}}

Latest revision as of 08:29, 18 May 2024

cw_21.png
GarageImage CW-21.jpg
360://https://old-wiki.warthunder.com/images/a/a7/Cockpit_cw_21.jpg
CW-21
AB RB SB
2.0 2.7 2.0
Class:
Research:4 000 Specs-Card-Exp.png
Purchase:2 100 Specs-Card-Lion.png

Description

The CW-21 was a fighter interceptor based on the CW-19. Intended to be a high altitude fighter with good climb rate and good armament, it caught the interest of the Chinese government. China received 3 fully built CW-21s and 27 kits to be armed. Another three were sent to China and given to the Flying Tigers group. Other variants of the CW-21 were developed, like the CW-21B, which was used by the Dutch in an effort to modernize their air force. However, after the defeat to Germany, these aircraft were given to the Dutch East Indies. The CW-21 ended up being easy prey to the Japanese fighters, and their lightweight construction meant that cracks and structural failures were more common than in other planes.

Introduced in Update 1.91 "Night Vision", the CW-21 is a unique and capable fighter that excels in high altitude capabilities. It has an amazing climb rate good top speed, and so will it leave most of the other planes behind when it takes off and starts climbing. Unlike many aircraft, it's very competitive even in uptiers when facing aircraft like the A6M2 or the P-51, and in downtiers, it outmatches almost every opponent as long as it uses its good climb rate to get an advantageous position. The CW-21s armament is average for its rank, with 2 x .50 calibre M2s and 2 x .30 calibre M1919s. Even though this armament is not the best and lacks cannons, is enough to destroy any plane that it will fight with a few well-placed shots, while also having a good ammo pool and good range compared to most cannons at its BR. Thanks to its lightweight construction, the CW-21 is also very nimble, outmanoeuvring most aircraft in battle, except for biplanes and Japanese planes which are notorious for their excellent agility.

General info

Flight performance

Max speed
at 3 700 m505 km/h
Turn time14 s
Max altitude10 800 m
EngineWright R-1820-G5
TypeRadial
Cooling systemAir
Take-off weight2 t

The CW-21 is excellent at diving because of its slick wing design. The wings enable the planes ultimate flight performance with the 1,000 hp (750 kW) Wright R-1820-G5 nine-cylinder air-cooled radial engine. The wings are thin but long producing enough lift with the smallest amount of drag. The speed comes with the extremely light semi-monocoque structure which decreases the weight hence improves the performance.

Characteristics Max Speed
(km/h at 3,700 m)
Max altitude
(metres)
Turn time
(seconds)
Rate of climb
(metres/second)
Take-off run
(metres)
AB RB AB RB AB RB
Stock 480 465 10800 14.2 15.0 13.4 13.4 343
Upgraded 533 505 13.8 14.0 24.5 18.2

Details

The sleek CW-21 in flight.
Features
Combat flaps Take-off flaps Landing flaps Air brakes Arrestor gear
X X
Limits
Wings (km/h) Gear (km/h) Flaps (km/h) Max Static G
Combat Take-off Landing + -
735 290 355 322 240 ~10 ~5
Optimal velocities (km/h)
Ailerons Rudder Elevators Radiator
< 280 < 260 < 450 > 250

Survivability and armour

Crew1 person
Speed of destruction
Structural0 km/h
Gear290 km/h

The CW-21 is about as fragile as it looks as far as combat damage is concerned. It does not have any sort of armour protection whatsoever, a historical design decision to minimize weight and maximize its rate of climb. While the resulting flight performance is nothing short of spectacular, it renders the pilot very vulnerable to being knocked out, even by low-calibre machine guns. For this reason, head-ons should be avoided, and when being tailed by an enemy, evasive manoeuvres are very important. The fuel tanks are located in the wings and are at the very least self-sealing.

Upon its initial release, the CW-21 was quite infamous for having literally unbreakable wings that would stay intact after suffering critical damage, but this has since been patched. Attempting to use the wings as a melee weapon is no longer recommended.

Modifications and economy

Repair costBasic → Reference
AB167 → 211 Sl icon.png
RB364 → 460 Sl icon.png
SB444 → 562 Sl icon.png
Total cost of modifications4 450 Rp icon.png
2 700 Sl icon.png
Talisman cost300 Ge icon.png
Crew training600 Sl icon.png
Experts2 100 Sl icon.png
Aces45 Ge icon.png
Research Aces110 000 Rp icon.png
Reward for battleAB / RB / SB
10 / 30 / 60 % Sl icon.png
100 / 100 / 100 % Rp icon.png
Modifications
Flight performance Survivability Weaponry
Mods aerodinamic fuse.png
Fuselage repair
Research:
300 Rp icon.png
Cost:
180 Sl icon.png
55 Ge icon.png
Mods radiator.png
Radiator
Research:
300 Rp icon.png
Cost:
180 Sl icon.png
55 Ge icon.png
Mods compressor.png
Compressor
Research:
330 Rp icon.png
Cost:
200 Sl icon.png
60 Ge icon.png
Mods new engine.png
Engine
Research:
560 Rp icon.png
Cost:
340 Sl icon.png
100 Ge icon.png
Mods aerodinamic wing.png
Wings repair
Research:
360 Rp icon.png
Cost:
220 Sl icon.png
65 Ge icon.png
Mods metanol.png
Engine injection
Research:
360 Rp icon.png
Cost:
220 Sl icon.png
65 Ge icon.png
Mods armor frame.png
Airframe
Research:
330 Rp icon.png
Cost:
200 Sl icon.png
60 Ge icon.png
Mods armor cover.png
Cover
Research:
360 Rp icon.png
Cost:
220 Sl icon.png
65 Ge icon.png
Mods ammo.png
bmg30_belt_pack
Research:
300 Rp icon.png
Cost:
180 Sl icon.png
55 Ge icon.png
Mod arrow 1.png
Mods ammo.png
bmg50_belt_pack
Research:
330 Rp icon.png
Cost:
200 Sl icon.png
60 Ge icon.png
Mod arrow 1.png
Mods weapon.png
bmg30_new_gun
Research:
560 Rp icon.png
Cost:
340 Sl icon.png
100 Ge icon.png
Mods weapon.png
bmg50_new_gun
Research:
360 Rp icon.png
Cost:
220 Sl icon.png
65 Ge icon.png

Armaments

Offensive armament

Ammunition400 rounds
Fire rate750 shots/min
Ammunition1 000 rounds
Fire rate1 000 shots/min

The CW-21 is armed with:

  • 2 x 12.7 mm M2 Browning machine guns, nose-mounted (200 rpg = 400 total)
  • 2 x 7.62 mm Browning machine guns, nose-mounted (500 rpg = 1,000 total)

The armament of the CW-21 is fairly respectable compared to other aircraft it faces, although is nothing particularly special. While the ammo count is fairly standard in comparison to similar aircraft it can still leave something to be desired and can cause you problems, particularly if you have poor trigger discipline. All the guns are nose mounted, this makes aiming easier and means you do not need to worry about convergence.

Usage in battles

The CW-21 should be mainly used as a fighter. Excelling in turns, acceleration, with hard-hitting guns, it is very easy to dogfight other planes at its battle rating. Your main composition will sometimes be biplanes and some biplanes can out turn you. However, the CW-21 against monoplanes is where it really shines. It can easily out turn other planes like the He 100 or even the He 112 which is crucial in a dogfight. The CW-21 does not have any close air support potential other than knocking out light targets like anti-aircraft artillery and armoured vehicles, so the main targets will be other planes.

The CW-21 can outclimb practically any other fighter on the battlefield. While it is a good dogfighter, it excels in diving attacks, where enemies can be eliminated in a pass or two, and if not, the extra energy advantage makes the ensuing dogfights much easier. Cruise at high altitude, pick out a target and swoop down to begin the engagement, using the great handling to stay on the target's tail. If the fight is not going as well as expected, it is not difficult to disengage and climb back to safety, though it pays to fly carefully and watch out for bullets coming in from behind.

While intercepting bombers is easy, even the weakest of defensive armaments can do a serious number on the CW-21, possibly ending the engagement abruptly with a pilot snipe. Study the layout of enemy bombers and only approach from angles that are not covered by turrets, or alternatively wait for a teammate to join in and distract the opponent's fire. Note that bringing down large aircraft can use up a large amount of the CW-21's limited ammunition supply.

Something to note is that the CW-21's incredibly lightweight (it weighs less than an I-16) means that the energy retention after dives leaves something to be desired. The climb rate compensates for the mediocre top speed somewhat since altitude can be converted into speed, but this bonus will be quickly lost. Avoid prolonged chases against faster aircraft, otherwise one may be both unable to catch up and drained of energy.

Perhaps the only other opponent capable of giving the CW-21 a run for its money in terms of performance is the German He 100 D-1. The Heinkel also has a very good climb rate and enjoys superior speed, though it has worse manoeuvrability and inferior armament. While the CW-21 still has a better climb rate, He 100 pilots can build up speed in level flight and zoom climb to catch up, and the three 7.92 mm machine guns are still more than enough to dispatch the CW-21. Watch He 100s warily, be prepared to dodge them, and try to land a few hits - the He 100 is incredibly fragile and even a stray bullet can ruin its cooling system, forcing the pilot to return to base or burn up.

Against the CW-21:

  • Turnfighter (or biplane): all reserve biplanes (e.g. Ki-10, He 51) can easily out-turn the CW-21, though they cannot out-climb or out-run it, thus the aggressive and active side will usually be the CW-21, forcing turn-fighters into a passive disadvantage. When a CW-21 dives on you, start banking to one side and turn under its negative G area as soon as the distance is <700 m. This is a very common tactic to force an abortion on a BnZ fighter. After a few successful dodges, the CW-21 will usually lose some altitude and speed. They might even run out of 12.7 mm bullets. If they lose patience and try to turnfight you, lure them into flat, continuous turns. Although the CW-21 is also a great turner, it still cannot sustain its turn rate better than a biplane/dedicated turn-fighter (e.g. A6M2), but you can. Try not to get into vertical manoeuvres, as that might allow the CW-21 to use its energy & climb rate advantage.
  • Jack-of-all-trades fighter: this may be the hardest situation to deal with and requires more skills on combining manoeuvres and managing energy, as the CW-21 itself is a jack of all trade aircraft, so it is a duel between the same type. As mentioned before, the CW-21 climbs, turns and runs really well against common fighters at this BR (e.g. Ki-43). If you have an altitude advantage over it, perform conventional BnZ. Do not lose patience if they dodge your dives again and again, instead keep the pressure up and gradually force it down to the deck, then it is your prey. If it gets on your tail, combine evasive manoeuvres like barrel rolls, scissors, etc to force an overshoot or even a reversal. Remember to keep your speed up even if that means diving and losing altitude, most planes require some airspeed to manoeuvre the best.
  • High-speed BnZ fighter: these aircraft generally require an altitude advantage to unleash their speed. Unless you are so fast that you can simply outrun the CW-21 (e.g. He 100), get higher before diving. You have to pull up high after each dive, no matter how little damage the pass did, because if you do not pull up the CW-21 can follow up or even stick to your tail for some split seconds, and you will get hit. Speed is your best friend at all times.
  • Attacker/bomber: a good choice when being boom-and-zoomed by a CW-21 is to steeply dive to the deck. This does two jobs: 1) it gains you speed and separation between you two, making the CW-21 harder to aim at you, and 2) it drags the CW-21 to the deck too, if they want to get this kill. This eliminates their altitude advantage and creates opportunities for your teammates. With you racing at treetop level and the CW-21 following behind, you should get quite some time to aim carefully at its big radial engine. If you are rugged (e.g. Do 17 Z-7) or heavily armed (e.g. B18) you might even make it run out of ammo or destroy it with your gunners.

Manual Engine Control

MEC elements
Mixer Pitch Radiator Supercharger Turbocharger
Oil Water Type
Controllable Controllable
Not auto controlled
Not controllable
Not auto controlled
Not controllable
Not auto controlled
Separate Controllable
2 gears
Not controllable

Pros and cons

Pros:

  • Respectable firepower for the rank
  • Turn rate is on par with the early Spitfires and even A6Ms
  • Climb rate is very good for its rank
  • Good dive characteristics - difficult to induce compression, wings will not readily break
  • Speed is respectable and can be used to outrun opponents

Cons:

  • Mediocre energy retention
  • No armour
  • Ammo can run out fast with poor trigger discipline

History

The Curtiss-Wright 21 was a lightweight fighter-interceptor based on the CW-19. CW-21 designer, George A. Page, only emphasized the plane to have an incredible rate of climb and to not dogfight. It would climb away from a dogfight instead of dog-fighting. The U.S. wouldn't adopt the plane as they wanted a plane with low-level dogfight capability, and to not only excel solely in climbing. George A. Page knew this and designed the plane mainly for exporting.

Intrigued by the CW-21's performance, China looked into the CW-21 furthermore with a prototype being delivered to China. During a discussion about the CW-21, a prototype CW-21 shot down an Italian BR.20. China decided to buy some with China receiving 3 completely built CW-21's and 27 kits. Another three CW-21's were delivered to China and sent to the "Flying Tigers" group. They intended to use the CW-21 for attacking Japanese reconnaissance but ended up crashing due to poor visibility.

Meanwhile, Curtiss-Wright was developing the CW-21B. The CW-21B had inward retractable gears, instead of the gears being retracted into the fairings beneath each wing. The CW-21B also sported hydraulic control surfaces. The CW-21B did end up having a lower climb rate but did have a higher top speed. The Dutch ordered 24 CW-21B's in an effort to obtain modern aircraft, however, it was too late to receive them as they surrendered to the Germans. The Dutch ended up giving the CW-21B's to the Dutch East Indies (now Indonesia). After assembling the newly acquired CW-21B's, they started using them. They later ended up finding cracks on some of their CW-21B's and grounded them. This was due to the very lightweight construction of the CW-21B. These CW-21B's were easy prey to Japanese planes and most were destroyed on the ground as well as the few which were able to fly.

Media

Skins

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 aircraft;
  • links to approximate analogues of other nations and research trees.

External links


Curtiss-Wright Corporation
Fighters  BF2C-1
  P-36A · Rasmussen's P-36A · P-36C · P-36G
  P-40C · P-40E-1 · P-40F-10
Bombers  SB2C-1C · SB2C-4
Floatplanes  SOC-1
Experimental  XP-55
Export  H-75A-1 · H-75A-4 · H-81A-2 · ▂P-40E-1 · ␗P-40E-1 · ▄P-40F-5 Lafayette · CW-21 · Hawk III
  ▄SB2C-5
Captured  ▀Hawk H-75A-2

China fighters
British  ␗Gladiator Mk I
French  D.510C
Japanese  ␗A6M2 · ␗Ki-27 otsu · ␗Ki-43-III ko · ␗Ki-44-II hei · ␗Ki-61-I otsu · ␗Ki-84 ko
American  CW-21 · Hawk III · P-66 · ␗P-40E-1 · H-81A-2 · ␗P-43A-1
  ␗P-47D-23-RA · ␗P-47D-30 · ␗F-47N-25-RE · ␗P-51C-11-NT · ␗P-51D-20 · ␗P-51K
Soviet  ␗I-15bis · ␗I-153 M-62 · ␗I-16 Chung 28 · ␗I-16 type 5 · ␗I-16 type 10 · ␗I-16 type 17 · ␗La-11 · ␗La-9