The Su-9. A photo. History. Characteristics.


Su-9 - Soviet all-weather fighter-interceptor. It was one of the first Soviet fighter with a delta wing. Over fifteen years Su-9 was the most high-altitude and high-speed combat aircraft in the Soviet Union.


History Su-9


In 1953, the Pavel Sukhoi Design Bureau began to create several supersonic fighters of the new second generation. One of them became Su-7 - a plane with a swept wing. Later on, a whole family of fighter-bombers was built on its basis. At the same time, the Sukhovites began to develop a super-high-speed super-high-altitude interceptor with a triangular wing. This machine received the working index T-3. By the beginning of the 50-s, the wing of a large sweep was widely used on jet aircraft. Such machines successfully flew, moreover, they overcame a supersonic barrier.

Su-9 pribrnaya panel

It would seem that swept wing is quite suitable to achieve high speeds, and nothing more is required. Why did Paul Dry appealed to the delta wing thin profile? Selecting designer was based on several considerations. Thin profile creating minimal drag, particularly at supersonic speeds. The robust construction provides durability and reliability.


Calculations and testing in the wind tunnel have shown that the new wing could increase not only the speed, but also the range, maneuverability, and hence the effectiveness of the aircraft as a whole. Delta wing easier to manufacture, which is important for serial production cars.


I have such a wing and a lack - high speed device while landing. Therefore, choosing his fighter delta wing, P. Sukhoi serious risk. At that time, especially the behavior of airborne vehicles with different types of wing has not yet been well studied. Understand this could only test pilots.

Su-9 photo

The new fighter-interceptor had an unusual shape: long, almost cylindrical fuselage, small wings triangular cone-shaped radomes onboard radar. The stabilizer on the tail was made of whole turning. This increases maneuverability at supersonic speeds and easier handling.


The first flying prototype T-3 flew in 1956 May, a month of his viewers saw the air parade in Tushino.


Flight testing of the T-3 were difficult in several stages: the novelty of playing the role of technology, lack of thought design certain components, including the engine compartment and the air intakes. Bulky radar radomes seriously affects the aerodynamics of flight, so the car equipped with the new radar. Now the antenna is inside the sliding cone inlet. It has improved the flight characteristics and stable operation of the motor at different speed modes. The new model was designated the T-43.


10.10.1957 picked it up in the air Ilyushin. The first flight of the T-43 2200 reached a speed of km / h and height 21 500 m. After a year on the basis of this machine, it was decided to create a whole range of air interception. Ground radar commanded the actions of the pilot to land, calculate the necessary parameters of height and velocity, detect the correct coordinates of the enemy fighter and it struck the target.


The first Soviet aviation complex interception entered service in 1960 year. It is based on the Su-9, to get the same index as one of the first-born Sukhoi.


Records Su-9


High flight characteristics allowed to install interceptor Su-9 several world records. Above all, in the 28 152 m, rose Vladimir Ilyushin. He also set a world record height of horizontal flight, which was 21 170 m. The world speed record on a closed 100-2092 kilometorovomu route km / h set Boris Andrianov.


The design of the Su-9


The design of the machines were laid Sukhoi unique solutions that are far ahead of their time. For the first time on this plane applied trigger control ailerons and rudder. Transmission effort to deflect rudder carried turn power. Combatant aerobatic pilots praised the properties of interceptor Su-9 management was easy and responsive. The car behaved well in the air across the spectrum of speeds.

Su-9 23

In the middle of 60-ies Su-9 30 regiments were armed. The development of the aircraft was severe test for industrial enterprises engaged in production of "Nine", and for parts of the air defense forces, the transition to a fundamentally new technique. High accident flight was, especially among the young pilots.


In the process of development of aircraft design flaws were found: on the machines first production series was often the engine failure. Often emergency was caused by violations of rules of operation of machinery, low culture of maintenance. The team Sukhoi has been mobilized to eliminate the defects noted. All comments and suggestions were taken into account military pilots designers and manufacturers.


In 1965, the air defense received a perfect complex aviaperehvata - Su-11.


Features of Su-9


In interceptor Su and Su-9-11 was not unique: their speed, altitude, distance capture and detection of the target at that time was none. Such aircraft were needed for the protection of the Soviet border along which is constantly flying foreign reconnaissance aircraft. Therefore, in line units of air defense "dry" were engaged in combat operation. They flew to intercept the aircraft and automatic drifting balloons that invaded Soviet airspace. Interceptor Su and Su-9-11 served parts of the air defense of the country before 80-ies. There were built about 1100 such machines.

Su-9 planes

In 60-ies at the airport Ultra-Link interceptor Su-9 carried on combat duty for defense Baikonur Cosmodrome. In place of the family of Su-9 came more advanced Sukhoi fighters AP. These planes can intercept any purpose - from strategic bombers to cruise missiles.


Su-9 characteristics:

Modification   Su-9
Wingspan, m   8.54
The length of the fuselage with the PST, m   18.06
Height, m   4.82
Wing area, m   34.0
Weight, kg  empty   7675
Weight, kg  normal takeoff   11422
Weight, kg  maximum take-off   12515
Weight, kg  Fuel   3100
engine's type   1 TRDF AL-7F-1-100U
Thrust, kgf  
  at maximum   X 1 6800
  afterburner   X 1 9600
Maximum speed km / h  
  on high   2230
  near the ground   1150
Practical range, km  
  without PTB   1260
  with PTB   1710
The maximum rate of climb, m / min   12000
ceiling   20000
Crew   1
Armament:   Combat load on 6 suspension units:
  4 UR air-to-air PC-2US (K-5MS) or
  2 UR air-to-air PC-2US and 2 UR K-55
  2 PTB


Su-9 (1946)

Sukhoi Design Bureau was established in 1946 Su-9, which was equipped with two engines of jet type. This machine is a fighter-bomber, designed for the Soviet Air Force.

The history of the Su-9

By developing the Su-9 designers Bureau started in the early 1944 on the initiative of the country's leadership. The car was able to create this type of research by the designer AM Lyulkina, who at that time actively conducted research for the production of the new turbojet type C-18. It is this engine and planned to put on the Su-9. Unfortunately, this engine was destroyed even during the first tests. Therefore, the Sukhoi Design Bureau started to focus on the German engines of this type that have been mined in the battles.

Autumn 45 year project was approved aircraft, code-named "A", which has been installed the engine type Jumo-004, taken from downed German aircraft. Initially, this machine was to serve as a quality fighter, but later it was equipped with armament bomber.


The plane is made by the type-metal sredneplana equipped with the chassis of the three pillars that were removed in the body of the machine during the flight. Nose of the aircraft was equipped for the installation of weapons. In addition, there was placed a fuel tank, and the other was placed behind the pilot. Total capacity tank cars was 2,3 tons of fuel.

The wings are shaped like trapezoids, which are fastened on the type of turbine engines Jumo-004. The cockpit is equipped with all parties fairly thick armor that can protect pilots from direct 12-millimeter projectile.

According to the state order Sukhoi had to make two cars of this type with the following characteristics:

  • the rate should be 805 km / h and it is near the ground;

  • at the height of kilometer 3 unit was moving at a speed of 880 km / h;

  • and Su-9 should pass away in 880 km without refueling;

  • ceiling height flight planned in 12,5 kilometers.

The first prototype was ready in the autumn of 46 years and a month later the Su-9 taken to the airport to begin flight tests. They took a long time because of problems with the engine and fine-tuning of all major systems, ended only after a year. The main change in the design of this period was the setting for the ejection seat, which was also taken from the German car and refined by our designers, which increased its effectiveness.

The general public Su-9 was presented at the parade in the town of Tushino summer 46 years. The same summer the car was directed to the state tests. They were completed in December 47 year, while the car was improved. The changes affected the design of boosters and parachutes for braking. This has improved the characteristics of the device, and it has reduced the distance run and run.


The State Commission noted the excellent performance characteristics in comparison with similar models and ease of management, obedient machine. In addition, Su-9 was less fastidious in ground handling. This machine can be used as interceptor aircraft by equipping the new radar system, which had the designation "Thorium".

Despite all the advantages and innovations that have been implemented by designers in the car, the plane Su-9 and not used for serial production. This was mainly due to the tightening time officials, and then did the termination of funding of the project in 1948 year.

Brief description of the design of the Su-9

Aircraft such as Su-9 was designed as midwing. Wings machines have a trapezoidal shape, fastened thereto thrusters German assembly. The plumage of the machine is vertical. The fuselage has an oval cross-section, which is attached to a smooth lining. The frame body had 33 the frame, which were linked spars and additional Stingers.

As for the wing, then design it very well designed and thought out. It is a single-spar, consists of two consoles, equipped with additional longitudinal walls. By the body of the aircraft wings were attached with just 4 mounting assemblies. Flaps were able deviations on 50 °. In the body of the aircraft and engine nacelles were installed brake pads.

The power plant project was presented to the car engine type TRD RD-10 or engine aircraft such as the German Jumo-004. Engines powerplant working on kerosene.

Variations and modifications of the project Su-9

In addition to the standard car, which is described above, the Sukhoi Design Bureau designed and other machines in its class. One of them was the Su-9UT, which was also developed in 46 year. This type was designed for training and pilot training. The main difference from the basic model was that the car should have two cockpit. A special feature was the fact that the student is in front of the cabin of the aircraft, and the cabin behind the instructor. Also this car has not been provided to book cabins, but from the weapons she had only two guns.


Another modification was to be a plane, "The Stand," which the designers had planned to install a more powerful engine boosted RD-10. The design of this engine is engaged directly in the Sukhoi Design Bureau with support from CIAM. Also characteristic of this unit was the design of the wing, and the planned location of the engine is not under the wing as before, and in the midst thereof. According to calculations of the aircraft designers had to develop speed in 900 km / h. But all these projects have not been translated into reality.


The Su-9. Gallery.

Su-9 photo on takeoffSu-9 plane on runwaySu-9 plane on the runway before take-off

Su-9 acceleration of the aircraft on the runwaySu-9 plane before repairSu-9 aircraft close up photo

Su-9 plane before take-off on runwaySu-9 aircraft with lower suspensionsSu-9 plane with a team of pilots

Su-9 tail aircraftSu-9 near the pilot of the aircraftSu-9 aircraft in flight