Difference between revisions of "BK90 (90 mm)"

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== History ==
 
== 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 If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the weapon and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Weapon-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>.''
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The first prototypes of the Kanonenjagdpanzer were built in 1960 by Hanomag and Henschel for West Germany and by MOWAG for Switzerland. Between 1966 and 1967, 770 units were built for the Bundeswehr, 385 by Hanomag and 385 by Henschel. Eighty of them were delivered to Belgium from April 1975 onward.
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When the Soviets began deploying their T-64 and T-72 main battle tanks, the 90 mm gun was not capable of engaging them in long-range combat and the Kanonenjagdpanzer became obsolete. Although the producers claimed it could be rearmed with a 105 mm gun, between 1983 and 1985, 163 of these tank destroyers were converted into Raketenjagdpanzer Jaguar 2 anti-tank guided missile carriers by removing the gun, adding a roof-mounted TOW missile launcher and fastening further spaced and perforated armour on the hull. Some others were refitted into artillery observation vehicles by removing the main gun, so called Beobachtungspanzer, which served most particularly in the mortar units.
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Some Kanonenjagdpanzer remained in service with the Heimatschutztruppe until 1990.<ref>https://en.wikipedia.org/wiki/Kanonenjagdpanzer</ref>
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== ''Design'' ==
  
 
== Media ==
 
== Media ==

Revision as of 14:39, 27 February 2021

Description

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

Vehicles equipped with this weapon

General info

Tell us about the tactical and technical characteristics of the cannon or machine gun.

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
M332 shot APCR 291 286 264 240 217 197
M431 shell HEATFS 320 320 320 320 320 320
M71 shell HE 13 13 13 13 13 13
DM502 HESH 102 102 102 102 102 102
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%
M332 shot APCR 1,165 5.7 N/A N/A N/A 66° 70° 72°
M431 shell HEATFS 1,216 5.8 0 0.1 712.64 65° 72° 77°
M71 shell HE 823 10.55 0 0.1 925 79° 80° 81°
DM502 HESH 853 10.6 0.05 0.1 3,050 73° 77° 80°

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

The first prototypes of the Kanonenjagdpanzer were built in 1960 by Hanomag and Henschel for West Germany and by MOWAG for Switzerland. Between 1966 and 1967, 770 units were built for the Bundeswehr, 385 by Hanomag and 385 by Henschel. Eighty of them were delivered to Belgium from April 1975 onward.

When the Soviets began deploying their T-64 and T-72 main battle tanks, the 90 mm gun was not capable of engaging them in long-range combat and the Kanonenjagdpanzer became obsolete. Although the producers claimed it could be rearmed with a 105 mm gun, between 1983 and 1985, 163 of these tank destroyers were converted into Raketenjagdpanzer Jaguar 2 anti-tank guided missile carriers by removing the gun, adding a roof-mounted TOW missile launcher and fastening further spaced and perforated armour on the hull. Some others were refitted into artillery observation vehicles by removing the main gun, so called Beobachtungspanzer, which served most particularly in the mortar units.

Some Kanonenjagdpanzer remained in service with the Heimatschutztruppe until 1990.[1]

Design

Media

The BK90 cannon on a Hanomag-Henschel JPz 4-5
Ru 251 with BK90

See also

External links


Germany tank cannons
20 mm  KwK30 · KwK38 · Rh202
28/20 mm  s.Pz.B.41
30 mm  MK 30-2/ABM
37 mm  KwK34(t) · KwK36 · KwK38(t) · PaK L/45
47 mm  Pak.(t)(Sf.)
50 mm  KwK39 · KwK L/42 · PaK38
57 mm  Bofors L/70 Mk.1
75 mm  K51 L/24 · KwK37 · KwK40 L43 · KwK40 L48 · KwK42 · KwK44 · KwK44 L/36.5 · PaK39 L48 · PaK40/3 L46 · PaK42 · StuK37 · StuK40 L43 · StuK40 L48
76 mm  PaK36 (r)
88 mm  Flak.37 · Flak 41 · KwK36 · KwK43 · PaK43
90 mm  BK90
105 mm  CN105-57 · FMK.4 Modelo 1L · K.18 · KwK L/68 · L7A3 · PzK M57 · StuH42
120 mm  Rh120 L/44 · Rh120 L/55 · Rh120 L/55 A1
128 mm  K.40 · KwK44 · PaK44
150 mm  s.I.G.33 · Stu.H 43 L/12
380 mm  RW61
  Foreign:
30 mm  Bushmaster 2 Mk.44 (USA) · HSS 831L (Britain)
57 mm  6pdr OQF Mk.V (Britain)
73 mm  2A28 (USSR)
75 mm  M3 (USA)
76 mm  F-32 (USSR) · F-34 (USSR) · M32 (USA)
90 mm  M36 (USA) · M41 (USA)
105 mm  GT-3 (South Africa)
125 mm  2A46M (USSR)
152 mm  M-10T (USSR) · XM150E5 (USA)
155 mm  M126 (USA)