Alekseyev I-211

The Alekseyev I-211 was a single-seat jet fighter first flown on October 13, 1947, and the first fighter aircraft to be produced by the Semyon Alekseyev OKB-21 established in September 1946.

The plane configuration was similar to Gloster Meteor, with twin engines in wing nacelles. It was supposed to be an interceptor fighter, with heavy armament and a place for a future radar. The I-211 was intended to have been powered by two 3,010 lbf static (13.39 kN) Lyulka TR-1 axial-flow turbojets, but following trial flights it was discovered that the aircraft was severely underpowered, with the engines only producing 70% of their rated thrust. Engines were also troublesome.

It was proposed that the second prototype be fitted with revised 3,318 lbf st (14.76 kN) TR-1A engines, but before these were cleared for flight testing Alekseyev was allocated two UK-export Rolls-Royce Derwent centrifugal-flow turbojets, so the aircraft was modified to take these instead and redesignated I-215. The I-211 was abandoned in favour of the I-215 when the TR-1A was discontinued.

pecifications (I-211)

aircraft specifications
plane or copter?=plane
jet or prop?=jet
ref=
crew=1
capacity=
payload main=
payload alt=
length main= 11.54 m
length alt=37 ft 10 in
span main=12.25 m
span alt=40 ft 2 in
height main=3.68 m
height alt=12 ft 1 in
area main= 25 m²
area alt= 269 ft²
airfoil=
empty weight main= 4360 kg
empty weight alt= 9,592 lb
loaded weight main= 7460 kg
loaded weight alt= 16,412 lb
useful load main=
useful load alt=
max takeoff weight main=
max takeoff weight alt=
more general=

engine (jet)=Lyulka TR-1
type of jet=turbojet
number of jets=2
thrust main= 13.39 kN
thrust alt= 1350 kg
thrust original=
afterburning thrust main=
afterburning thrust alt=

max speed main= 910 km/h
max speed alt= 488 kts, 561 mph
cruise speed main= 760 km/h
cruise speed alt=407 kts, 469 mph
stall speed main=
stall speed alt=
never exceed speed main=
never exceed speed alt=
range main= 2000 km
range alt=1080 nm, 1234 mi
ceiling main= 13,600 m
ceiling alt= 44,610 ft
climb rate main= 1667 m/min
climb rate alt= 5467 ft/min
loading main=
loading alt=
thrust/weight=
power/mass main=
power/mass alt=
more performance=
armament=
*3 × 37 mm Nudelman N-37 cannons
avionics=

References

* cite book
last=Green
first=W.
coauthors=Swanborough, G.
year=1994
title=The Complete Book of Fighters
location=London
publisher=Salamander Books
id=ISBN 1-85833-777-1
* [http://www.airwar.ru/enc/fighter/i215.html I-215 at Ugolok Neba] site (in Russian)

ee also

aircontent
related=
*Alekseyev I-215

similar aircraft=
*Sukhoi Su-9 (1946)
*Sukhoi Su-11 (1947)
*Gloster Meteor
*Messerschmitt Me 262

sequence=

lists=

see also=