Fairmile D (617)

Fairmile D (617)

Dark Aggressor

Fairmile D (697)

Fairmile D (617)

Dark Aggressor

Fairmile D (697)

Britain

III Rank

Battle rating:

AB	RB	SB
2.3	2.3	2.3

Class:

Motor torpedo boat

Boat

Research:36 000

Purchase:115 000

Show in game

Description

The Fairmile D (617) is a rank III British motor torpedo boat with a battle rating of 2.3 (AB/RB/SB). It was introduced in Update 1.83 "Masters of the Sea" as part of the British fleet closed beta test.

General info

Survivability and armour

Armourfront / side / back

Hull28 mm (wood)

Superstructure15 mm (wood)

Number of section5

Displacement105 t

Crew30 people

Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.

Mobility

Speedforward / back

AB83 / 29 km/h

RB59 / 21 km/h

Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.

Mobility Characteristics
Game Mode	Upgrade Status	Maximum Speed (km/h)		Turn Time (s)	Turn Radius (m)
		Forward	Reverse
AB	Stock	___	___
	Upgraded	83	29
RB/SB	Stock	___	___
	Upgraded	59	21

Modifications and economy

Repair costBasic → Reference

AB1 166 → 1 502

RB1 593 → 2 053

Total cost of modifications35 600

77 500

Talisman cost1 200

Crew training33 000

Experts115 000

Aces590

Research Aces360 000

Reward for battleAB / RB / SB

100 / 160 / 100 %

148 / 148 / 148 %

Modifications

Seakeeping	Unsinkability	Firepower
Dry-Docking Research: 1 800 Cost: 3 900 155 Rudder Replacement Research: 1 600 Cost: 3 500 140 Propeller Replacement Research: 2 200 Cost: 4 800 190 Engine Maintenance Research: 2 900 Cost: 6 300 250	Damage Control Division Research: 1 800 Cost: 3 900 155 Fire Division Research: 1 600 Cost: 3 500 140 Smokescreen Research: 1 600 Cost: 3 500 140 New Pumps Research: 2 900 Cost: 6 300 250	Anti-Air Armament Targeting Research: 1 800 Cost: 3 900 155 20 mm HE magazines Research: 1 800 Cost: 3 900 155 Auxiliary Armament Targeting Research: 1 600 Cost: 3 500 140 20 mm AP magazines Research: 1 600 Cost: 3 500 140 Primary Armament Targeting Research: 2 200 Cost: 4 800 190 Depth Charges Research: 2 200 Cost: 4 800 190 Improved Rangefinder Research: 2 200 Cost: 4 800 190 Artillery Support Research: 2 900 Cost: 6 300 250 Torpedo Mode Research: 2 900 Cost: 6 300 250

Armament

Primary armament

Turret57 mm 6pdr 7cwt QF Mk IIA mounting

Ammunition140 rounds

Vertical guidance-10° / 12°

Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: {{main|Weapon name (calibre)}}. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.

Penetration statistics
Ammunition	Type of warhead	Penetration @ 0° Angle of Attack (mm)
		100 m	1,000 m	2,000 m	3,000 m	4,000 m	5,000 m
Shell Mk.10	HE	5	5	5	5	5	5

Shell details
Ammunition	Type of warhead	Velocity (m/s)	Projectile mass (kg)	Fuse delay (m)	Fuse sensitivity (mm)	Explosive mass (TNT equivalent) (g)	Ricochet
							0%	50%	100%
Shell Mk.10	HE	655	2.72	0	0.1	153	79°	80°	81°

Secondary armament

Turret2 x 20 mm/70 Oerlikon Mark V autocannon

Ammunition3600 rounds

Belt capacity60 rounds

Fire rate450 shots/min

Some ships are fitted with weapons of various calibres. Secondary armaments are defined as weapons chosen with the control Select secondary weapon. Evaluate the secondary armaments and give advice on how to use them. Describe the ammunition available for the secondary armament. Provide recommendations on how to use them and which ammunition to choose. Remember that any anti-air armament, even heavy calibre weapons, belong in the next section. If there is no secondary armament, remove this section.

• Universal: HEF-T · HEF-I · AP-T
• 20 mm HE: HEF-T · HEF-I · AP-T · HEF-I
• 20 mm AP: AP-T · AP-T · AP-T · HEF-I

Penetration statistics
Ammunition	Penetration @ 0° Angle of Attack (mm)
	10 m	100 m	500 m	1,000 m	1,500 m	2,000 m
HEF-T	2	2	2	2	2	2
AP-T	34	32	24	17	12	8
HEF-I	2	2	2	2	2	2

Shell details
Ammunition	Velocity (m/s)	Projectile mass (kg)	Fuse delay (m)	Fuse sensitivity (mm)	Explosive mass (TNT equivalent) (g)	Ricochet
						0%	50%	100%
HEF-T	830	0.12	0	0.1	6.57	79°	80°	81°
AP-T	830	0.12	-	-	-	47°	60°	65°
HEF-I	830	0.12	0	0.1	11.17	79°	80°	81°

Anti-aircraft armament

2 х Turret2 x 12.7 mm Vickers Mk.V machine gun

Ammunition4000 rounds

Belt capacity200 rounds

Fire rate600 shots/min

2 х Turret2 x 7.7 mm Vickers GO No.5 machine gun

Ammunition4000 rounds

Belt capacity100 rounds

Fire rate949 shots/min

An important part of the ship's armament responsible for air defence. Anti-aircraft armament is defined by the weapon chosen with the control Select anti-aircraft weapons. Talk about the ship's anti-air cannons and machine guns, the number of guns and their positions, their effective range, and about their overall effectiveness – including against surface targets. If there are no anti-aircraft armaments, remove this section.

Additional armament

Setup 12 x 533 mm Mk.VIII torpedo

Setup 22 x Mk.VII depth charge

Setup 32 x 533 mm Mk.VIII torpedo

2 x Mk.VII depth charge

Describe the available additional armaments of the ship: depth charges, mines, torpedoes. Talk about their positions, available ammunition and launch features such as dead zones of torpedoes. If there is no additional armament, remove this section.

Usage in battles

In AB this boat works best when the opposing team has started using aircraft as the boat has good coverage from its secondary and anti-aircraft armaments and is used to provide anti-air cover (with HE rounds equipped) for other more powerful boats. However, given its speed and agility it is good when making breaks for neutralising or capturing points, especially if they are not being guarded by larger more heavily-armoured craft.

The high fire rate and placement of the primary cannon means that it is easy to use and will handle craft of a similar size (plus there is no overheat mechanic). Against larger or more heavily-armoured targets the user should rely on the torpedoes or team mates (especially against craft such as the similarly BR rated SF40) as the main cannon is too low caliber to end head-to-head conflicts quickly enough given the lightweight nature of the hull. Against smaller boats such as the Pr.123 or the ubiquitous LS3, it is best the use the secondary or anti-air armaments (especially when the target is within 1.5km) as they are sufficiently powerful to deal with their armour while being able to keep up with these agile craft but a few well place shots at longer ranges from the primary cannon can be very satisfying.

Much like the rest of British coastal boats, this boat is not suited for areas of intense fighting and is best used as anti-air support or when used with hit and run tactics.

Pros and cons

Pros:

• Reasonable anti-air defences
• Fast and agile

Cons:

• Light armour

History

Describe the history of the creation and combat usage of the ship 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 ship and adding a block "/History" (example: https://wiki.warthunder.com/(Ship-name)/History) and add a link to it here using the main template. Be sure to reference text and sources by using <ref></ref>, as well as adding them at the end of the article with <references />. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under === In-game description ===, also if applicable).

Media

Skins

• Skins and camouflages for the Fairmile D (617) from live.warthunder.com.

See also

• Fairmile D (601) - Sister ship that with 57 mm armaments replaced with automatic 40 mm cannons and no torpedoes.
• Fairmile D (697) - Sister ship that is slightly slower with a pair of Mk XV torpedoes.
• Fairmile D (5001) - Sister ship that is slightly slower with a pair of both Mk.VIII and Mk XV torpedoes.

External links

Paste links to sources and external resources, such as:

• topic on the official game forum;
• other literature.

Fairmile Marine Company
Motor Launch (ML)
Fairmile A	Fairmile A (ML100)
Fairmile B	Fairmile B (ML345)
Motor Torpedo/Gun Boat (MTB/MGB)
Fairmile C	Fairmile C (312) · Fairmile C (332)
Fairmile D	Fairmile D (601) · Fairmile D (617) · Fairmile D (697) · Fairmile D (5001)
Landing Craft Support (LCS)
Fairmile H	Fairmile H LCS(L)(2)