BK90 (90 mm)

Description

The BK90 is a German modification of the American 90 mm gun M1/M2/M3 taken from old M47s. It has access to HEATFS, HE, and HESH which is the only new round.

Vehicles equipped with this weapon

• JPz 4-5
• Ru 251

General info

The gun's HEAT-FS shell has amazing pen at long range for the BR that this gun is seen at combine that with a short reload time the gun its great for ambush and sniping.

Available ammunition

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
DM502	HESH	102	102	102	102	102	102
M71 shell	HE	13	13	13	13	13	13
M431 shell	HEATFS	320	320	320	320	320	320

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%
DM502	HESH	853	10.6	0.1	4	3,050	73°	77°	80°
M71 shell	HE	823	10.55	0	0.1	925	79°	80°	81°
M431 shell	HEATFS	1,216	5.8	0.05	0.1	712.64	65°	72°	77°

Comparison with analogues

• M36 (90 mm) - American variant of the cannon, which the BK90 was derived from. Though it does not have the BK90's HESH round, it has a large variety of AP rounds for use.

Usage in battles

The BK90 with HEAT-FS is a formidable opponent on the battlefield that can penetrate every 6.7 tank's frontal armour at any range. It is best used in hit-n-run types of attack due to the vehicles it is mounted on.

Pros and cons

Pros:

• Access to HEATFS that can penetrate every tank that it typically has to face

Cons:

• Limited kinetic ammunition variety - the only kinetic ammunition is APCR
• Of the chemical rounds available, only the HEAT-FS round is of noteworthy use

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 If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the weapon and adding a block "/History" (example: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

• 

  The BK90 cannon on a Hanomag-Henschel JPz 4-5

• 

  Ru 251 with BK90

See also

• M48 Patton

External links

• [Wikipedia] 90 mm gun M1/M2/M3