B-11 recoilless rifle

B-11 recoilless gun in Batey ha-Osef Museum, Israel.

The B-11 recoilless rifle (It is also known as RG107)^[1] is a Soviet 107 mm smoothbore recoilless gun. It entered service in 1954,^[2] and was typically towed by a 6x6 ZIL-157 truck or a UAZ 4x4 truck.^[3]^[4]

Designed by KB Mashinostroyeniya (KBM), Kolomna.

It is fitted using a PBO-4 sight which has a 5.5x zoom direct fire sight and a 2.5x zoom sight for indirect fire.

Specifications

B-11 recoilless rifle in Batey ha-Osef Museum, Israel.

Crew: 5
Calibre: 107 mm (4.21 in)
Weight: 304.8 kg (672 lb)
Length: 3.56 m (11.67 ft) (travel position)
Barrel length: 3.383 m (11 ft)
Height: 1.19 m (3.90 ft) (firing position). 0.9 m (3 ft) (travel)
Traverse: 35 degrees in each direction
Elevation: -10/+45
Rate of fire: 6 rounds per minute

Ammunition

BK-883 - HEAT.
Projectile 7.51 kg (16.5 lb).
Complete round 12.5 kg (27.5 lb).
Warhead 1.06 kg (2.3 lb) of RDX/Aluminium.
GK-2 PIBD fuze.
Range: 450 m (490 yd) (effective) 1,400 m (1,530 yd) (max).
Penetration 381 mm (15 in).
Muzzle velocity
O-883A - FRAG-HE.
Projectile 8.5 kg (19 lb).
Complete round 13.5 kg (30 lb).
Warhead 2.088 kg (4.6 lb) Amatol 80/20.
GK-2 PIBD fuze.
Muzzle velocity: 375 m/s (1,230 fp/s) .
Range: 1,300 m (1,420 yd) (direct) 6,650 m (7,270 yd) (indirect)

Users

Current users

Former users

Bulgaria
Cambodia
China
East Germany
Egypt
Iraq^[5]
Nigeria: some used during Biafran War^[6]
North Vietnam
Poland
Somalia
Romania

References

↑ http://www.smallarmssurvey.org/fileadmin/docs/H-Research_Notes/SAS-Research-Note-55.pdf
↑ Foss, Christopher F. (1981). Artillery of the world (U.S. ed.). New York: Scribner. ISBN 9780684167220. Retrieved 14 October 2014.
↑ https://books.google.pl/books?id=wZ0eDAAAQBAJ&pg=PT298&lpg=PT298&dq=B-11+recoilless+rifle&source=bl&ots=8LeVYAtVWP&sig=VcrRECuO5y8oFtWEV8dM5te54Ek&hl=pl&sa=X&ved=0ahUKEwiKtaKbzpvaAhXCasAKHSZLAx8Q6AEIlgEwEg#v=onepage&q=B-11%20recoilless%20rifle&f=false
↑ https://books.google.pl/books?id=NAzCWxuIcW4C&pg=PA104&lpg=PA104&dq=b-11+recoilless+rifle&source=bl&ots=cCkpbA2k9b&sig=KBsi-ySwPrq4SqtQE_hYwbq1D78&hl=pl&sa=X&ved=0ahUKEwiH3eT9zZvaAhWNulMKHVJ0BrkQ6AEIkQEwEQ#v=onepage&q=b-11%20recoilless%20rifle&f=false
↑ Rottman, Gordon L. (1993). Armies of the Gulf War. Elite 45. Osprey Publishing. p. 49. ISBN 9781855322776.
↑ Jowett, Philip (2016). Modern African Wars (5): The Nigerian-Biafran War 1967-70. Oxford: Osprey Publishing Press. p. 20. ISBN 978-1472816092.

External links

http://www.bratishka.ru/archiv/2004/7/2004_7_8.php (in Russian)

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[1] ttp://www.smallarmssurvey.org/fileadmin/docs/H-Research_Notes/SAS-Research-Note-55.pdf

[2] Foss, Christopher F. (1981). Artillery of the world (U.S. ed.). New York: Scribner. ISBN 9780684167220. Retrieved 14 October 2014.

[3] ttps://books.google.pl/books?id=wZ0eDAAAQBAJ&pg=PT298&lpg=PT298&dq=B-11+recoilless+rifle&source=bl&ots=8LeVYAtVWP&sig=VcrRECuO5y8oFtWEV8dM5te54Ek&hl=pl&sa=X&ved=0ahUKEwiKtaKbzpvaAhXCasAKHSZLAx8Q6AEIlgEwEg#v=onepage&q=B-11%20recoilless%20rifle&f=false

[4] ttps://books.google.pl/books?id=NAzCWxuIcW4C&pg=PA104&lpg=PA104&dq=b-11+recoilless+rifle&source=bl&ots=cCkpbA2k9b&sig=KBsi-ySwPrq4SqtQE_hYwbq1D78&hl=pl&sa=X&ved=0ahUKEwiH3eT9zZvaAhWNulMKHVJ0BrkQ6AEIkQEwEQ#v=onepage&q=b-11%20recoilless%20rifle&f=false

[gulf-5] Rottman, Gordon L. (1993). Armies of the Gulf War. Elite 45. Osprey Publishing. p. 49. ISBN 9781855322776.

[auto-6] Jowett, Philip (2016). Modern African Wars (5): The Nigerian-Biafran War 1967-70. Oxford: Osprey Publishing Press. p. 20. ISBN 978-1472816092.