HMS Orion

HMS Orion

HMS Dreadnought

HMS Marlborough

HMS Orion

HMS Dreadnought

HMS Marlborough

Britain

V Rank

Battle rating:

AB	RB	SB
6.7	6.7	6.7

Class:

Battleship

Research:290 000

Purchase:790 000

Show in game

Description

The Orion-class, HMS Orion (52), 1914, as the lead ship of her class of 4 was laid down in November 1909. Launched in August 1910 and commissioned in January 1912, she and her class would feature the new 13.5-inch gun. This along with their thicker armour would lead to them being colloquially referred to as "super-dreadnoughts". Despite this and despite being active for the entirety of the First World War, she would see relatively little combat. Seeing action in the infamous Battle of Jutland and the Action of the 19th of August, the vast majority of her career during the war was simply routine patrols and training. Following the end of the war, Orion would serve as a gunnery training ship for about a year before being sold for scrap in 1922.

Introduced in Update "Air Superiority", HMS Orion follows HMS Dreadnought in the Bluewater fleet. Compared to Dreadnought, she features heavier armour and more powerful guns at 13.5-inch compared to the 12-inch battery of Dreadnought. Notably, she maintains the same top speed despite the increase in capability. Unlike Dreadnought though, HMS Orion comes in a 1914 refit, meaning she lacks even the paltry pair of 3-inch anti-aircraft guns. This means aircraft have essentially free reign over the Orion, and is a very noticeable weakness.

General info

Survivability and armour

Armourfront / side / back

Citadel152 / 305 / 25 mm

Main fire tower279 / 279 / 203 mm

Hull25 mm (steel)

Superstructure16 mm (steel)

Number of section9

Displacement26 284 t

Crew1 090 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

AB45 / 28 km/h

RB39 / 24 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	45	28
RB/SB	Stock	___	___
	Upgraded	39	24

Modifications and economy

Repair costBasic → Reference

AB25 524 → 31 496

RB31 398 → 38 745

Total cost of modifications283 000

423 000

Talisman cost2 200

Crew training230 000

Experts790 000

Aces1 800

Research Aces780 000

Reward for battleAB / RB / SB

450 / 600 / 100 %

202 / 202 / 202 %

Modifications

Seakeeping	Unsinkability	Firepower
Dry-Docking Research: 14 000 Cost: 21 000 270 Rudder Replacement Research: 16 000 Cost: 24 000 310 Propeller Replacement Research: 14 000 Cost: 21 000 270 Engine Maintenance Research: 31 000 Cost: 46 000 600	Damage Control Division Research: 14 000 Cost: 21 000 270 Fire Division Research: 16 000 Cost: 24 000 310 Shrapnel Protection Research: 14 000 Cost: 21 000 270 Ventilation Research: 14 000 Cost: 21 000 270 New Pumps Research: 31 000 Cost: 46 000 600 Ammo Wetting Research: 31 000 Cost: 46 000 600	102mm_uk_bl_mk7_navy_cpc_ammo_pack Research: 14 000 Cost: 21 000 270 13.5 inch APC Mk.IIa Research: 14 000 Cost: 21 000 270 Auxiliary Armament Targeting Research: 16 000 Cost: 24 000 310 13.5 inch CPC Research: 16 000 Cost: 24 000 310 Primary Armament Targeting Research: 14 000 Cost: 21 000 270 Improved Rangefinder Research: 14 000 Cost: 21 000 270

Armament

Primary armament

5 х Turret2 x 13.5 inch/45 Mark 5(L) cannon

Ammunition172 rounds

Vertical guidance-3° / 20°

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)
		1,000 m	2,500 m	5,000 m	7,500 m	10,000 m	15,000 m
13.5 inch HE	HE	77	77	77	77	77	77
13.5 inch APC Mk.IIa	APCBC	538	486	412	353	305	244
13.5 inch CPBC	SAPCBC	287	258	217	185	159	126

Shell details
Ammunition	Type of warhead	Velocity (m/s)	Projectile mass (kg)	Fuse delay (s)	Fuse sensitivity (mm)	Explosive mass (TNT equivalent) (kg)	Ricochet
							0%	50%	100%
13.5 inch HE	HE	787	567	0	0.1	88.11	79°	80°	81°
13.5 inch APC Mk.IIa	APCBC	787	574.5	0.025	20	19.91	48°	63°	71°
13.5 inch CPBC	SAPCBC	787	567	0.035	26	53.3	48°	63°	71°

Secondary armament

16 х Turret4 inch/50 BL Mark VII cannon

Ammunition150 rounds

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.

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
4 inch HE	HE	11	11	11	11	11	11
4 inch CPC	SAPBC	102	84	60	45	34	26

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%
4 inch HE	HE	873	14.06	0	0.1	700	79°	80°	81°
4 inch CPC	SAPBC	873	14.06	0.015	5	420	48°	63°	71°

Additional armament

Setup 112 x 533 mm Mk.IV torpedo

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

Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).

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".

Pros:

Cons:

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 HMS Orion 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

Paste links to sources and external resources, such as:

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

Portsmouth Royal Dockyard
Frigates
Leopard-class	HMS Leopard
Heavy Cruisers
County-class	HMS London
Battleships
Unique ships	HMS Dreadnought
Orion-class	HMS Orion
Iron Duke-class	HMS Iron Duke

Britain battleships
	HMS Dreadnought*
Colossus-class	HMS Colossus
Orion-class	HMS Orion
Iron Duke-class	HMS Iron Duke · HMS Marlborough
Queen Elizabeth-class	HMS Barham
	* Unique ship