Yak-23, which NATO classification called Flora, - the development of a jet fighter Yakovlev created in the postwar period. First flew in July 1947 1949 Since, the Soviet industry produced 310 aircraft. They were standing a short period of time in service with the Air Forces of the USSR and some Eastern European countries.
History of the Yak-23
Domestic aircraft received a new stage of development after the beginning of the procurement of foreign motor company "Rolls Royce" ( "Derwent-In" and "Nin").
11.03.1947 out a resolution of the USSR, in which all KB entrusted the task of developing jets with these the English power plants. On the Yakovlev design laid Orthoptera fighter with the engine "Derwent-In." Yakovlev began simultaneous development of two aircraft: Yak-25, having a classical scheme of the fuselage and the pilot of the Yak-19. Also, on its own initiative designed Yak-23 hull steps scheme.
The aircraft was built from scratch, but a little drawing on the experience of creating the first jet fighter Yak and Yak-15-17. aircraft wing had laminizirovanny profile and slotted flaps type TsAGI. As part of the weapons were two HP-23 gun (originally planned for the installation of guns W-3-23, but they did not pass the test). They were housed under the engine in the lower part of the fuselage. The first prototype car with the motor "Derwent-In" gathered in June 1947 years. 8.07.1947 it first flew on a Soviet test pilot M. Ivanov. Yak-August 3 23 demonstrated to the public at aviaparada in Tushino.
11.10.1947 the second instance of the aircraft entered the GK NII VVS for passing state tests. Certificate obtained upon completion, was that flight characteristics received superior aircraft performance Su and MiG-9-9. According fighter speed ahead of its main competitor MiG-9, but the results fell short of the estimated parameters. Ground speed of the aircraft - 925 km / h at an altitude of m 5000 - 910 km / h, respectively, less than expected on 35 km / h and 40 km / h. This was due to the increased weight of the airplane on 65 kg and less engine thrust indicators, than it was written on the paper.
. The radius of the bend at an altitude of 5 thousand meters was 750 m, time bend - 28 seconds. In the plane there were no air brakes, which limited maneuverability. Onboard equipment did not provide radio communication with the ground at large distances. Another shortcoming - the aircraft cabin was leaking.
On state tests conducted two training combat Yak-23 against jet bomber Tu-12. The results indicated the suitability of the Yakovlev aircraft to counter modern fighters.
Despite the fact that the domestic engines RD-500 inferior in power indicators English analogue "Derwent-In" in the serial Yak-23 were only Soviet power plants, which have adopted a fighter.
14.07.1948 on aviaparada in Tushino second prototype crashed Yak-23. The accident occurred during a rehearsal. The fighters flew one after the other at a low altitude. Parent followed bombers. Suddenly Yak-23 disappears wing, then collapsing the canopy, pilot MI Ipanema falls out of the cab and from hitting the ground dies. The investigation revealed that the cause of the tragedy was an incredible coincidence. At Tu-14, which flew a little in front and on top of the Yak-23, he fell off the weight balancer steering and fell straight to the fighter wing.
The plane almost a year after its creation in no hurry to start up in serial production. The reason for this was the absence of aerodynamic brakes, pressurized cabin, the lag in basic flying qualities of the aircraft La-15, MiG-15 and projected parallel Yak-25.
Initially planned to start mass production in the factory in Novosibirsk №153, but could not do that. Edition serial Yak-23 do at the plant number 31 in Tbilisi. However, once at the plant tried to launch a series of MiG-15, Yakovlev fighter production rates fell. End of serial production Yak-dated to March 23 1951 of Total issued 313 copies fighters.
|Wing area, m2||13.70|
|engine's type||1-500 TRD RD|
|Thrust, kgf||X 1 1590|
|Maximum speed km / h|
|near the ground||925|
|The maximum rate of climb, m / min||13450|
|Flight duration, h||2.3|
|Practical range, km|
|Practical ceiling, m||14800|
|Armament:||two 23 150-mm gun P (HP-23)|
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