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

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 armament separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Tips for preserving survivability should be saved for the "Use in battle" section.

If necessary, use a graphic 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 speed and reverse speed.

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.

Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.

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 armament is defined by the weapon chosen with the control Select secondary weapon. Evaluate the secondary armament 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 anti-air armament, even heavy calibre weapons, belong in the next section.

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 raid defense. 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.

Torpedo armament

Many ships are armed with torpedo launchers, and for some vessels such as boats, torpedoes are an extremely important means of defeating an opponent. Evaluate the position of the torpedo launchers, discuss the ammunition available, firing specifics such as dead zones, features of the torpedoes themselves, etc.

Special armament

Depth charges, mines, rocket launchers and missiles are also effective in skilled hands and can be an unexpected surprise for an opponent. Evaluate the ammunition of this type of armament and rate its performance in combat.

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 equippped) 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 similary BR rated SF40) as the main cannon is too low caliber to end head-to-head conflicts quickly enough given the lighweight nature of the hull. Against smaller boats such as the Pr.123 or the ubiquitours 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.

Modules

Tier	Seakeeping	Unsinkability		Firepower
I	Dry-Docking	Tool Set		20 mm HE	Anti-Air Armament Targeting
II	Rudder Replacement	Fire Protection System	Smokescreen	20 mm AP	Auxiliary Armament Targeting
III	Propeller Replacement			Depth Charges	Primary Armament Targeting	Improved Rangefinder
IV	Engine Maintenance	New Pumps			Artillery Support	Torpedo Mode

Pros and cons

Summarize 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 - they have a substitution in the form of softer "inadequate", "effective".

Pros:

• Reasonable anti-air
• 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 big, take it to a separate article, taking a link to an article about the vehicle and adding a block "/ History" (example: https://wiki.warthunder.com/(Vehicle-name)/History) and add a link to it here using the main template. Be sure to reference text and sources by using <ref>, as well as adding them at the end of the article.

Media

An excellent addition to the article will be video guides, as well as screenshots from the game and photos.

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;
• encyclopedia page on ship;
• other literature.