HMS Jervis

HMS Jervis

HMS Jervis

Britain

II Rank

Battle rating:

AB	RB	SB
4.3	4.3	4.3

Class:

PREMIUM

Destroyer

Purchase:1 000

Show in game

Description

The J-class, HMS Jervis (F00), 1944 is a premium rank II British destroyer with a battle rating of 4.3 (AB/RB/SB). It was introduced in Update "New Power".

General info

Survivability and armour

Armourfront / side / back

Main fire tower3 / 3 / 0 mm

Hull16 mm (steel)

Superstructure4 mm (steel)

Number of section7

Displacement2 369 t

Crew208 people

In real life, HMS Jervis is famous for not suffering any crew loss during her extensive career in World War II, despite occasionally taking serious battle damage. However, the "Lucky J" does not have her immense luck to save her crew from incoming fire in the game.

The Jervis' protection is practically nonexistent. She has only 3.2 mm of casemate armour to protect her main guns, and her Oerlikon autocannon mounts ironically have thicker (but still bad) gun shields of 12.7 mm in thickness. Simply put, the Jervis will take full damage from any of the large cannon calibres, and even small autocannons can pose a threat to her survival.

To make matters worse, almost every vital part of the Jervis is exposed to enemy fire to an extent, her engines, and transmissions are sitting above the waterline with no fuel tanks to absorb incoming shots, and are thus easy to knock out. Her ready ammo racks are fatal weak spots, as they are placed just nearby the main turrets. Any HE shells that would detonate around her turrets will most likely detonate them, causing severe damage to the ship.

Mobility

Speedforward / back

AB85 / 31 km/h

RB69 / 25 km/h

Being a destroyer with relatively low displacement, the Jervis is very fast and manoeuvrable. Due to her very poor protection, using her mobility is a key to survive.

Mobility Characteristics
Game Mode	Upgrade Status	Maximum Speed (km/h)		Turn Time (s)	Turn Radius (m)
		Forward	Reverse
AB	Stock	___	___
	Upgraded	85	31
RB/SB	Stock	___	___
	Upgraded	69	25

Modifications and economy

Repair cost

AB1 687

RB1 570

Crew training4 800

Experts32 000

Aces250

Research Aces440 000

Reward for battleAB / RB / SB

2 × 150 / 320 / 50 %

2 × 124 / 124 / 124 %

Modifications

Seakeeping	Unsinkability	Firepower
Dry-Docking Rudder Replacement Propeller Replacement Engine Maintenance	Damage Control Division Fire Division Smokescreen Shrapnel Protection Ventilation New Pumps Ammo Wetting	120mm_uk_navy_AP_ammo_pack 40mm_qf_mkxv_he_ammo_pack Anti-Air Armament Targeting 120mm_uk_navy_dist_fuse_he_ammo_pack 40mm_qf_mkxv_ap_ammo_pack Auxiliary Armament Targeting Improved Rangefinder Improved Rangefinder Primary Armament Targeting Torpedo Mode 120mm_uk_navy_radio_fuse_he_ammo_pack

Armament

Primary armament

3 х Turret2 x 4.7 inch/45 Mk.XII cannon, CPXIX mounting

Ammunition400 rounds

Vertical guidance-10° / 40°

The Jervis is equipped with six 120 mm 4.7 inch/45 Mk.XII cannons, mounted in three twin turrets in A-Bs-X setup. These guns have very good traverse speed, and the placement of the turrets allow the B and X turrets to completely turn around, which will come in handy when using it with quick turning to avoid incoming shots.

The 120 mm guns have a short reload time of 5 seconds (ace crew) and feature four types of ammunition; HE, SAP, HE-TF, and HE-VT. The HE shell is reliable against destroyers and some light cruisers, while the SAP shell is only useful for dealing internal damage at close range due to poor penetration. As the turrets have fast traverse speed and good coverage, the anti-air shells will be useful for engaging enemy planes at range if you wish to.

Penetration statistics
Ammunition	Type of warhead	Penetration @ 0° Angle of Attack (mm)
		1,000 m	2,500 m	5,000 m	7,500 m	10,000 m	15,000 m
HE Mk.VIIA	HE	35	35	35	35	35	35
SAP Mk.VA	SAP	116	92	63	44	33	29
HE-TF Mk.VIIA	HE-TF	35	35	35	35	35	35
HE-VT Mk.VIIA	HE-VT	35	35	35	35	35	35

Shell details
Ammunition	Type of warhead	Velocity (m/s)	Projectile mass (kg)	Fuse delay (s)	Fuse sensitivity (mm)	Explosive mass (TNT equivalent) (g)	Ricochet
							0%	50%	100%
HE Mk.VIIA	HE	808	22.68	0	0.1	3,000	79°	80°	81°
SAP Mk.VA	SAP	808	22.68	0.015	5	900	47°	60°	65°
HE-TF Mk.VIIA	HE-TF	808	22.68	0	0.1	3,000	79°	80°	81°

Proximity-fused shell details
Ammunition	Type of warhead	Velocity (m/s)	Projectile mass (kg)	Fuse delay (m)	Fuse sensitivity (mm)	Arming distance (m)	Trigger radius (m)	Explosive mass (TNT equivalent) (g)	Ricochet
									0%	50%	100%
HE-VT Mk.VIIA	HE-VT	808	22.68	0	0.1	244	23	3,000	79°	80°	81°

Secondary armament

Turret4 x 40 mm 2pdr QF Mk.IIc automatic cannon

Ammunition8960 rounds

Belt capacity56 rounds

Fire rate200 shots/min

The Jervis is outfitted with four 40 mm Pom-pom autocannons in a single quadruple turret as a secondary armament. The turret is located at the midship section, just behind the funnel. The turret can fully rotate but is unable to fire directly at the front and the rear, thus limiting its usage to enemies coming from above or the broadsides of the ship. While the placement of the Pom-pom turret restricts its usage, it can be very deadly against any boats or aircraft within its range.

Penetration statistics
Shell	Penetration @ 0° Angle of Attack (mm)
	10 m	100 m	500 m	1,000 m	1,500 m	2,000 m
AP-T	60	57	48	39	32	26
HEF	3	3	3	3	3	3

Shell details
Ammunition	Velocity (m/s)	Projectile Mass (kg)	Fuse delay (m)	Fuse sensitivity (mm)	Explosive Mass (TNT equivalent) (g)	Ricochet
						0%	50%	100%
AP-T	701	0.91	N/A	N/A	N/A	47°	60°	65°
HEF	701	0.82	0	0.1	71	79°	80°	81°

Anti-aircraft armament

4 х Turret2 x 20 mm/70 Oerlikon Mark V autocannon

Ammunition3600 rounds

Belt capacity60 rounds

Fire rate450 shots/min

2 х Turret20 mm/70 Oerlikon Mk.II autocannon

Ammunition1800 rounds

Belt capacity60 rounds

Fire rate450 shots/min

For dedicated anti-air defence, the Jervis features ten 20 mm Oerlikon autocannons, with two pairs of dual-mounted Mk V on the bridge and between torpedo launchers and another pair of single-mounted Mk II at the stern. The placement of the guns provides wide coverage against surface and aerial threats, though it is always recommended to man the guns yourself if the enemy gets too close.

Additional armament

Setup 19 x 533 mm Mk.IX** torpedo

The Jervis is loaded with 9 x 533 mm Mk.IX** torpedoes. These torpedoes have 587.2 kg of TNT explosive as the warhead, which is noticeably more powerful than the variants found on British cruisers, and is enough to tackle all targets the Jervis will face. The torpedoes also have a decent top speed of 76 km/h without modification. As the torpedoes have a maximum range of 10 km which is within the range that the Jervis will usually engage, and the torpedo mode modification only adds 3.7 km of extra range, it is advised to uninstall these modifications to increase the torpedo's effectiveness.

Usage in battles

The Jervis is essentially a glass cannon that is good at delivering damage, but bad at taking it. Due to her abysmal protection, rushing into the enemy or trading shots with them is essentially a suicide, as most of your critical modules can be quickly taken out before you can take your enemy down. Instead, play as a support ship and stay behind your allies, your guns, and torpedoes are a great asset for taking down destroyers and harassing enemy cruisers, and your anti-air defence will keep any of the inbound aircraft or PT boats at bay. With HMS Jervis, you shouldn't travel in a straight line for too long as the enemy will target you, instead using your good mobility and turret traverse speed to avoid incoming fire and do a quick snapshot of them.

Pros and cons

Pros:

• Fast-firing 120 mm cannons with very good coverage
• Good turret traverse speed, the B and X turrets are fully traversable
• Very fast and manoeuvrable
• Good anti-air armament
• Powerful torpedoes with decent range

Cons:

• Extremely poor protection
• All the internal modules can be easily damaged
• Very low crew count
• Turrets are easy to knock out
• Ready ammo racks is exposed to enemy fire and can be detonated

History

HMS Jervis, J-class Flotilla Leader, was a destroyer of the J class. Commissioned just before the outbreak of war, Jervis saw extensive service in the Mediterranean and Atlantic theatres. She participated in multiple major engagements in the Mediterranean, and later participated in the D-Day landings of 1944. Jervis was retired at the end of the war, and later scrapped. She was highly decorated and received 13 battle honours for her service in the Second World War. Jervis also gained a reputation for being extremely lucky, as she never lost a single crew member during her 5 and a half years of service.

Design and Development

HMS Jervis on sea trials, early 1939.

The Jervis, as a member of the J class, was designed as a smaller follow-up to the preceding Tribal-class destroyers. Being smaller, the J class had a stronger balance between guns and torpedo armament, compared to the "gunship-style" Tribal-class destroyers. Jervis, in particular, was fitted with additional command space to accommodate the Flotilla commander. Jervis displaced 2600 tons, and was capable of 36 knots (66 km/h). Her main armament consisted of six 4.7-inch (120 mm) guns in three dual turrets, two mounted at the bow and one at the stern. She also carried numerous anti-aircraft defences as well as eight 533 mm torpedo tubes in two quad-mounts.

Jervis was laid down in mid-1937 and was launched in September 1938. She was completed and commissioned in May 1939, just months before the outbreak of the Second World War.

Service history

Following her completion and commissioning, the Jervis served as the flagship of the 7th Destroyer fleet. She first served as a patrol vessel in the North Sea, hunting for axis blockade runners; however, she collided with a freighter in March 1940 and was dry docked for repairs. Once the repairs were completed, she was assigned to the Mediterranean squadron, where she saw extensive service. She escorted convoys to Malta, participated in shore bombardment missions, and provided screening services to the British Mediterranean fleet.

In 1941, Jervis served in the Battle of Cape Matapan, where she sank the crippled Italian cruiser Zara and boarded Zara's sister ship Pola. She later participated in the battles of Crete and Sirte, where she managed to survive undamaged despite heavy allied losses. Later on, she was immobilized for six weeks by an Italian manned torpedo.

In 1944, Jervis was reassigned to the British Atlantic fleet, and provided fire support for the forces landing at Gold Beach for the D-Day landings. She was thereafter decommissioned for a refit, which gave her additional anti-aircraft protection. She returned to the Mediterranean after her recommissioning, and served as a patrol ship as World War II drew to a close. Following the end of the war, she was laid up in reserve and used by the cadets as a training ship. After being used for explosive tests, Jervis was given to the ship-breakers for scrap.

HMS Jervis is known as an extremely lucky ship: despite being active for almost the entirety of the war and having served in 13 major naval engagements, she never lost a single crew member. In fact, she was one of just two J-class ships to survive the war. She received 13 battle honours for her service during the Second World War, making her one of the most highly decorated British warships in modern history.

Media

Skins

• Skins and camouflages for the HMS Jervis from live.warthunder.com.

See also

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

• reference to the series of the ship;
• links to approximate analogues of other nations and research trees.

External links

References

Citations

Bibliography

• D-Day Encyclopedia. (2020). HMS Jervis - F00 - D-Day. Retrieved November 28, 2020, from https://www.dday-overlord.com/en/material/warships/hms-jervis
• Smith, G. (2004). HMS Jervis, Destroyer. Retrieved November 28, 2020, from http://www.naval-history.net/xGM-Chrono-10DD-36J-JervisJERVIS%201a.htm

R. & W. Hawthorn, Leslie and Company
Destroyers
V-class	HMS Verdun
J-class	HMS Jervis
Battle-Class	HMS Armada

Britain premium ships
Motor torpedo boats	MTB-1(2) · MTB-422 · Fairmile D (5001) · HMS Gay Archer
Motor gun boats	MGB-75 · SGB Grey Goose
Gunboats	HMS Spey
Sub-chasers	LÉ Orla
Frigates	HMS Whitby
Destroyers	HMS Montgomery · HMS Valhalla · HMS Verdun · ORP Garland · HMS Jervis · HMCS Haida · HMS Mohawk · HMS Cadiz · HMS Diamond
Light cruisers	HMS Belfast
Battleships	HMS Iron Duke