Berezin B-20
The Berezin B-20 (Березин Б-20) was a 20 mm caliber autocannon used by Soviet aircraft in World War II.
Also recorded as B-20 · Berezin UB-20
Berezin B-20
Vitaly V. Kuzmin · CC BY-SA 4.0
- Field
- aircraft artillery · autocannon
- Region
- Soviet Union
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Documentary evidence
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wikidata · Q819083 · wikipedia · Berezin B-20
In this article
Development
Development
The B-20 was created by Mikhail Yevgenyevich Berezin in 1944 by converting his 12.7 mm Berezin UB machine gun to use the 20 mm rounds used by the ShVAK cannon. No other changes were made to the weapon which was pneumatically or mechanically charged and was available in both synchronized and unsynchronized versions. In 1946, an electrically-fired version was created for the turrets of the Tupolev Tu-4 bomber until the Nudelman-Rikhter NR-23 cannon became available. The B-20 was a welcome replacement for the ShVAK because it was significantly lighter - 25 kg (55 lb) to the 40 kg (80 lb) ShVAK - without sacrificing rate of fire or muzzle velocity.
Specifications
Specifications
Ammunition: 20×99mm Empty weight: 25 kg (55 lbs) Muzzle velocity: 750–770 m/s (2,460-2,525 ft/s) Rate of fire: 800 rounds/min (600 synchronized) One-second burst-mass: Unsynchronized, 1.27 kg (2.8 lbs); Synchronized, 0.95 kg (2.1 lbs)
Production
Production
The Soviet archives register the following production numbers by year: 1944 — 2,275 1945 — 7,240 1946 — 440 1947 — 780 1948 — 1,686 1949 — 2,931
Places
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Soviet Union
Country
Berezin B-20 is associated with Soviet Union.
Country
Text attribution
Licensing
Text attribution
Part of the biographical narrative on this page reuses licensed material. Its origin, revision and licence are recorded here.
The biographical narrative on this page is based on the Wikipedia article Berezin B-20, revision 1325686181 (EN edition), by its contributors. VALÉORINE has edited that text and built its own documentary record around it. The reused material is available under CC BY-SA 4.0, and this page's reuse of it is offered under the same licence. Everything else on this page — the chronology, the holdings, the evidence, the plates and the connections — is VALÉORINE's own record. Sources and licences.
Notes from the source article
Cited by Wikipedia
Notes from the source article
These works are cited by the source article, in its own numbering. They are recorded as its citations, not as sources VALÉORINE has verified.
- 1.Shirokograd, p 119
References
Citations
References
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reference work
Secondary witnessreference work
Secondary witness
The Encyclopedia exists whether or not anything is for sale. Corrections are recorded rather than overwritten, and every version of this record is kept. Published 14 August 2026.
Elsewhere in Militaria
6,095 published records in this field, each with its sources named.
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- Beretta U22 NeosTerminology
- Beretta Xtrema 2Terminology
- Berezin UBTerminology
- Bergmann 1896Terminology
- Bergmann MarsTerminology
- Bergmann MG 15Terminology
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