Mikoyan-Gurevich I-350
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The Mikoyan-Gurevich I-350 (''Samolet M''), was a
Soviet The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, ...
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-era
experimental An experiment is a procedure carried out to support or refute a hypothesis, or determine the efficacy or likelihood of something previously untried. Experiments provide insight into cause-and-effect by demonstrating what outcome occurs when ...
fighter aircraft Fighter aircraft are fixed-wing military aircraft designed primarily for air-to-air combat. In military conflict, the role of fighter aircraft is to establish air superiority of the battlespace. Domination of the airspace above a battlefield ...
. It was the first Soviet aircraft able to maintain
supersonic speed Supersonic speed is the speed of an object that exceeds the speed of sound ( Mach 1). For objects traveling in dry air of a temperature of 20 °C (68 °F) at sea level, this speed is approximately . Speeds greater than five times ...
.


Design and development

From 1947, work began on a new axial-flow
turbojet The turbojet is an airbreathing jet engine which is typically used in aircraft. It consists of a gas turbine with a propelling nozzle. The gas turbine has an air inlet which includes inlet guide vanes, a compressor, a combustion chamber, and ...
by OKB-165, led by
Arkhip Mikhailovich Lyulka Arkhip Mikhailovich Lyul'ka (''Russian'': Архи́п Миха́йлович Лю́лька, ''Ukrainian'': Архип Михайлович Люлька) (1908–1984) was a Soviet scientist and designer of jet engines, head of the OKB Lyulka, ...
. OKB Mikoyan-Guryevich designed the I-350 around this engine, the Lyul'ka TR-3A (redesignated as the Lyulka AL-5). Resembling a scaled-up
MiG-17 The Mikoyan-Gurevich MiG-17 (russian: Микоян и Гуревич МиГ-17; NATO reporting name: Fresco) is a high-subsonic fighter aircraft produced in the Soviet Union from 1952 and was operated by air forces internationally. The MiG-17 w ...
, the I-350 had a long slim fuselage, mid-set 57° swept wings and a wide-chord fin mounting a tailplane at half-span. Given the OKB designation ''Izdeliye M'', it was the first Soviet fighter able to fly stably at supersonic speeds. Redesignated as the I-350, the I-350M-1 first prototype was fitted with a RP-1 Izumrud airborne interception radar and the second prototype, I-350M-2, was fitted with a
Korshun This is a complete list of variants and designations of the BMP-1 infantry fighting vehicle (IFV). It is sorted by country of origin. Variants Soviet Union Infantry fighting vehicles * BMP (Ob'yekt 764) – The original main prototype of the ...
airborne interception radar.


Operational history

The I-350M-1 first flew on 16 June 1951, piloted by Grigoriy A. Sedov, but the engine failed shortly after takeoff, precipitating a hydraulic system failure. Despite battling very heavy control forces, the pilot made a successful landing after lowering the landing gear using the emergency undercarriage extension system. Four more test flights were made, with very poor engine reliability, before the I-350 programme was terminated in August 1951.


Specifications (I-350)


See also


References


External links

{{Mikoyan aircraft I-350 1940s Soviet fighter aircraft Abandoned military aircraft projects of the Soviet Union Single-engined jet aircraft Aircraft first flown in 1951