Yakovlev Yak-5 (I-28)
1941
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Yakovlev Yak-5 (I-28)

Originally proposed in parallel with the Ya-26 (I-26), the Ya-28 (I-28) was a dedicated high-altitude interceptor fighter developed in competition with the Mikoyan-Gurevich OKB's Kh (I-200). Flown in the late spring of 1941 - shortly after the I-30 alias Yak-3 - the high-altitude fighter had meanwhile been redesignated Yak-5 and its test programme had been delayed by development problems with its mechanically-driven two-stage Dollezhal supercharger. Possessing a fundamentally similar mixed structure to that of the Yak-1, but featuring a modified wing structure with automatic outboard leading-edge slats, the Yak-5 was powered by a Klimov M-105PD - the M-105P with the Dollezhal supercharger - rated at 1,220hp for take-off and 1,150hp at 2700m. Armament was similar to that of the Yak-1. To improve all-round vision for the pilot, the cockpit canopy was extended aft. Two further prototypes of the Yak-5 were built, but the two-stage supercharger proved troublesome, and this problem, coupled with the higher priority assigned to the "frontal" Yak-1, led to rejection of the Yak-5 as a production type. Nonetheless, flight testing continued and it was alleged that a speed of 650km/h was attained at 8500m, and that, during June 1942, an altitude of 12890m was reached by one of the Yak-5 prototypes.

3-View 
Yakovlev Yak-5 (I-28)A three-view drawing (1680 x 1260)


Specification 
 WEIGHTS
    Empty weight2990 kg6592 lb
 PERFORMANCE
    Ceiling12000 m39350 ft
    Range460 km286 miles

Comments
beiguo, 20.06.2011

was attained at 8500m, and that, during June 1942, an altitude of 12890m was reached by one of the Yak-5 prototypes.

, 20.06.2011

Yakovlev Yak-5 (I-28)
1941

damian carrollcarroll.jonathan, 12.11.2010

Did this plane compare in performance to ME 109 in the years 42 43

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