Under the direction of Prof. Viktor Bolkhovitinov,
with detail design by Aleksandr
Bereznyak and Aleksei Isayev
(accounting for the BI of the designation),
the BI-1 was the first liquid
rocket-engined fighter flown in
the USSR. A low-wing monoplane, the
BI had a Dushkin D-1A rocket engine
in the tail, and this was highly temperamental, its volatile fuel mixture of
kerosene and nitric acid being not
only dangerous to handle, but also
causing corrosion of tanks and fuel
lines. The BI was flown initially as a
glider on 10 September 1941, the first
significant powered flight of 3 minutes
9 seconds, being made by the third
prototype on 15 May 1942. Work on 50
pre-production aircraft was started,
but halted when a prototype dived into
the ground on 27 March 1943 during a
low-level high-speed run, killing its
pilot. The endurance of the BI was inadequate
for operational use, but a
two-chamber engine developed by
Dushkin to overcome this deficiency,
with low (cruising) and high (combat)
thrust settings was almost double the
weight and considered unsuitable.
Wind tunnel testing that followed the
fatal crash revealed a stability problem
that could not be resolved and
further development was abandoned.
Before this, however, the seventh prototype
with a more powerful engine
had demonstrated a rate of climb of
4980m per minute.
|A three-view drawing (1647 x 1137)|
| ENGINE||1 x jet Dushkin D-1A, 10.8kN|
| Take-off weight||1683 kg||3710 lb|
| Empty weight||958 kg||2112 lb|
| Wingspan||6.5 m||21 ft 4 in|
| Length||5.3 m||17 ft 5 in|
| Height||2.1 m||7 ft 11 in|
| Wing area||7.0 m2||75.35 sq ft|
| Max. speed||800 km/h||497 mph|
| ARMAMENT||2 x 20mm machine-guns|
|Eric, e-mail, 22.03.2016 04:07|
The max speed was 620 mph, not a measly 497.
|Pavel, e-mail, 26.05.2012 18:17|
Tanino, you're not right. It's BI-1.
|Tanino, 26.02.2010 22:11|
the name of this plane is BL-1 and not Bi-1!!!
please correct the name!!!
see you soon
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