The history of the Su-9 aircraft began even before the USSR Council of Ministers decision on 29 May 1953 g. The draft government decree instructed the OKB PO. Sukhoi design a single-seat fighter with a delta wing design and TRD AM. Cradle with traction 10 000 kgf. The aircraft to be built in duplicate with the designation T-3.
Fighter Su-9 – video
While the walls of TsAGI still arguing, which wing is better to fly at hypersonic speeds: swept or other shape in plan. The dispute between the swept and delta wings could be solved only by practice. Working in this direction, EDO PO staff. Air dry proposed projects frontline fighters. At the end 1954 city, after the release of the next ruling, in the form of T-3 have been significant changes. EDO obliged to develop a missile interceptor into two K-7.
The first copy of the T-3 to the engine AL-7F, a central air inlet and a central body (inside was electronic telemeter DRS-3 "Grad") created at a faster pace, than aircraft with radar gun. But soon the construction of the aircraft stopped, as its flight data obtained analogously to the future Su-7. And the whole production reserve was used to accelerate the release of the second car.
26 May 1956 g. test pilot VN. Makhalin first raised plane T-3 in the air. Subsequently, the test continued test pilot B.C. Ilyushin. During the test T-3, and failed to reach the set parameters. Although aircraft flight data showed good: speed 1930 km / h and ceiling 18 Ltd. m. There were several reasons, but the most important was the lack of engine thrust and unreliable his work, and in the end 1957 g. testing the first prototype of the T-3 stopped. The second prototype aircraft, constructed taking into account the structural changes, I was designated PT-7, and when you run into a series - PT-8. But these aircraft were produced slightly, all of them were later converted into prototypes of the T-43 and T-47. On the basis of the aircraft T-43 complex of means of interception TK-51 was created.
AT 1956 g. The Soviet government made it mandatory for aviation bureau to raise the ceiling of its fighters to 21 km. To solve this problem there are two ways: or install an additional rocket engine, or to increase the thrust turbojet. Work on the project of T-3 with expander has not ended. But forcing turbojets allowed to raise the ceiling to the desired value. variant T-43 was developed with engine AL-7F-1, remake of one aircraft pilot series. The first flight of the prototype T-43-1 without weapons held in October 1957 g. On this machine, 14 July 1959 g. B.C. Ilyushin established the first absolute world record height, reaching the ceiling 28 852 m. Then, it was established several world records.
AT 1959 g. on the basis of the aircraft T-431 was organized serial production of a new single-seat fighter-interceptor Su-9. There were built more than 1000 machines. Interceptor Su-9 securely guarded sky country and served until the beginning of the 1980s. Interceptor Su-9 and Su-11 were the most high-speed and high-altitude aircraft to the Air Force 1969 city, Before the advent of the MiG-25 fighter.
Modifications Su-9
T-3, PT-7 - prototypes;
PT-8 - fighter of the first production batch;
T-49 - experimental fighter;
T-5 - experimental fighter;
Su-9 - interceptor with TRD AL-7F-1;
Su-9U - double training and combat fighter-interceptor.
Tactic-technical characteristics of the Su-9
– First flight: 10 October 1957 of the year
– Getting Started: 1959 year
– End of operation: 1981 year
– units produced: ~ 1 150
Su-9 Crew
– 1 pilot
The dimensions of the Su-9
– Length: 18,055 m
– Wingspan: 8,536 m
– Height: 4,82 m
– wing area: 34,0 m²
– Sweep angle of the leading edge: 60°
– Wing loading: 336,5 kg / m (Rasco.)
All Su-9
– empty weight: 7 675 kg
– Curb weight: 8 342 kg (Rasco.)
– Normal takeoff weight: 11 442 kg
– Maximum takeoff weight: 12 512 kg (with PTB)
– Mass fuel in internal tanks: 3 100 kg
– Volume of fuel tanks: 3 780 l
Engine Su-9
– 1 × TRDF HE-7F-1
– dry power: 1 × 6 800 kgf (66,7 kN)
– afterburning power: 1 × 9 600 kgf (94 kN)
– thrust-to-weight ratio: 0,60 / 0,84 (Rasco.)
Su-9 speed
– full speed: 2 230 km / h on 12 000 m
– Skoropodъёmnost: 200 m / s
– The length of the run: 1 200 m
– path length: 1 250 m (without braking parachute)
Range Su-9 flight
– Practical range without PTB: 1 350 km
– The practical range with the PTB: 1 800 km
Practical Su-9 ceiling
– 20 000 m
Weapon Su-9
– point of suspension: 6
– "Air-air" guided missiles:2-4 X RS-2US, 2 × K-55
Photo Su-9
