M-31-UK

 Description

The 300 mm M-31-UK is a ground-launched Soviet rocket. It differs from its more common, smaller counterpart, the M-13, by being a larger rocket with a bulbous type warhead and 8 spin-stabilization fins

Vehicles equipped with this weapon

• BM-31-12

General info

The 300 mm M-31-UK is a large rocket with 8 spin-stabilizer fins and a bulbous warhead.

Penetration statistics
Ammunition	Type of warhead	Penetration @ 0° Angle of Attack (mm)
		10 m	100 m	500 m	1,000 m	1,500 m	2,000 m
M-31-UK	Rocket	66	66	66	66	66	66

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%
M-31-UK	Rocket	245	91.5	0	0.1	28900	79°	80°	81°

 Effective damage

The M-31-UK is a High Explosive (HE) warhead type missile with a bulbous warhead, which allows it to deal incredible high explosive damage. This rocket can destroy almost all ground vehicles ingame with a single direct hit.

 Comparison with analogues

This rocket will be compared most often with its smaller brother, the M-13. Compared to the M-13, the M-31 is over twice as large in caliber, and far more dangerous against enemy vehicles through overpressure.

Usage in battles

The rocket is best used in concentrated strikes against most vehicles at choke points.

 Pros and cons

Pros:

• Indirect fire weapon, rockets can be used to attack targets behind obstacles
• The launcher layout allows almost simultaneous launch of rockets
• Surprisingly accurate for a ground-launched rocket
• Large warhead; can dispatch all but the heaviest of tanks, unlike its smaller brother, the M-13

Cons:

• Vehicles carrying this weapon usually lack a large ammo pool; must be fired conservatively
• Ranging shots is difficult

History

Examine the history of the creation and combat usage of the weapon 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 If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the weapon and adding a block "/ History" (example: https://wiki.warthunder.com/(Weapon-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 />.

 Media

Excellent additions to the article would be video guides, screenshots from the game, and photos.

 See also

• M-13 - smaller rocket variant.

 External links

Paste links to sources and external resources, such as:

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

Rockets
USA
70 mm	FFAR Mighty Mouse · Hydra-70 M247
110 mm	M8
127 mm	HVAR · Zuni Mk32 Mod 0 ATAP
298 mm	Tiny Tim
408 mm	Yasser
Germany
55 mm	R4M
73 mm	RZ.65
88 mm	Pb2
150 mm	Wgr.41 Spr
210 mm	Wfr.Gr.21
USSR
55 mm	S-5K · S-5KP · S-5M
80 mm	S-8KO · S-8M
82 mm	M-8 · ROS-82 · RBS-82
122 mm	S-13OF
127 mm	S-3K
132 mm	M13 · M-13UK · ROFS-132 · ROS-132 · RBS-132
212 mm	S-1of · S-21
240 mm	S-24 · S-24B
300 mm	M-31
420 mm	S-25O · S-25OF · S-25OFM
425 mm	TT-250
Britain
51 mm	RP
70 mm	CRV7 M247
80 mm	Type R80 SURA T-80-P 3 · Type R80 SURA T-80-US 3
87 mm	AP Mk I · AP Mk II
152 mm	RP-3
183 mm	Triplex R.P.
292 mm	Uncle Tom · Red Angel
Japan
100 mm	Type 5 No.1 Mod.9
120 mm	Type 3 No.1 Mod.28 Mk.1
130 mm	Type 75
210 mm	Type 3 No.6 Mod.27 Mk.1 · Type 5 No.6 Mod.9
China
55 mm	Type 57-1
70 mm	FS70
90 mm	Type 90-1
130 mm	Type 130-2
Italy
50 mm	ARF/8M3(AP-AT)
70 mm	Skyfire-70 AC/AP
France
68 mm	SNEB type 23 · TDA
70 mm	FZ49
100 mm	TBA ECC · TBA Multi-Dart 100 AB
120 mm	T10 140 · T10 151
Sweden
75 mm	srak m/55 Frida · srak m/57B
81 mm	Oerlikon Typ 3Z 8Dla
135 mm	m/56D · psrak m/70
145 mm	psrak m/49B · Psrak m/49/56
150 mm	srak m/51
180 mm	hprak m/49
Israel
80 mm	Flz.-Rakete Oerlikon
127 mm	AR