Su-7, P.O.Sukhoj

(b/w 36k) from Ever Changing Page of Roy Cochrun. Photo by John Geiger.

S
ingle-seat experimental fighter development of the Su-6 ground attack aircraft, used to test combined powerplant: piston engine and liquid rocket booster. Armour shell was deleted, size an shape of aircraft was not changed.
Rocket engine could be turned on and off as needed. Its total fire time was 4 minutes, providing faster takeoff and substantial speed increase, but without the booster performance was far from remarkable compared to that of fighters already in production.
Remained experimental.
Later designation Su-7 was used for Su-7B front line jet bomber.
References:
  • "History of aircraft construction in the USSR" by V.B.Shavrov, Vol.2 p.340-341;
    More links...
  • Su-7 at Virtual Aircraft Museum
  • Su-7, Sukhoi
  • Technical data
    Type Su-7
    Function Experimental fighter
    Year 1944
    Crew 1
    Engines 1*1850hp Shvetsov ASh-82FN with 2*TK-3 turbosuperchargers
    1*300kg Korolev-Glushko RD-1KhZ
    Length 9.14m
    Height 2.85m
    Wingspan 13.5m
    Wing area 26.0m2
    Empty weight 2600kg
    Loaded weight 4360kg
    Wing load 168kg/m2
    Power load
    Trust-to-Weight
    2.3 kh/hp
    0.069
    Speed at 0m 480km/h
    ?
    Speed at 7500m 590km/h
    680km/h
    Speed at 12000m 510km/h
    705km/h
    Landing Speed 120km/h
    Takeoff Roll 300m
    Range 1240km (990km?)
    Ceiling 12750m
    Armament
    Guns 3*20mm ShVAK (370 rounds)
    Modified January 12, 1998
    by Alexandre Savine;
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