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P-42
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P-42

The plane Sukhoi P-42. A photo. History. Haraktreristiki.

 

P-42 - Russian / Soviet pilot jet, which was established on the basis of Su-27 by removing much of the avionics and lightweight design, intended to establish speed records and lifting, distance and altitude, and others.

P-42 same way as the Su-27, has a good layout and integrated aerodynamic configuration: the wing is blended with the fuselage, thereby creating a single support body. On the leading edge of the wing has a sweep of 42 degree. In order to increase aerodynamic efficiency and to improve the aerodynamic characteristics of P-42 at high speeds used afloat big sweep. To reduce weight, had to abandon the mechanization of the wing. Also, the engineers decided not to use a regulated air collectors.

P-42

Unlike the Su-27, vertical tail at the P-42 dvuhkilevoe (reduced height of the keel), dismantled pylons, tail boom and ventral fins. Nose cone replaced by a lightweight metal with radiotransparent, dismantled a substantial part of the avionics, IRST and radar. With the application of these measures has been reduced to a maximum takeoff weight of 14 100 kg (official information about the weight of the empty aircraft is not).

The first publications on the establishment of world records in aviation 1986 appeared at the end of the year, when the P-42 demonstrated incredible results climb. 27 1986 October, the aircraft gained altitude 3 thousand. m for 25,4 with, and less than a month later on it managed to climb from the 37 6,9 km. Prior to that, almost 10 years a record number in the plane F-15. World records pilot VG Pugachev has been achieved in two categories: in the class of business aircraft and jet aircraft weight class 12-16 tons. Advanced in aviation matters quickly realized that a hidden P-42 new Su-27. All because a fighter weighing 20 t did not fit into the category of aircraft weighing up to 16 thousand. kg (after a while it became known that the take-off weight was P-42 14,1 thousand. kg, which is less than 2 t empty Su-27).

Guide Sukhoi for record flights decided to prepare one of the first production models of the Su-27 - model T10-15, which at that time held a full test program. The original name of the machine MP Simonov later explained as follows: "P-42 named as the Remembrance Day break in the Battle of Stalingrad, a perfect year in 1942. Then, to protect the Volga stronghold, aviation has played a key role in defeating the enemy. "

With the machine removed unnecessary tasks for his new weapon control system, optical-electronic aiming system and radar. Moreover, it was possible to reduce the area of ​​the vertical stabilizer, to shorten the tail boom, abolish podbalochnye crests and braking parachute unit, replace radome radar on the lightweight metal, jam mechanization wing and perform other actions aimed at reducing the take-off weight. In preparation for the scoring flight engineers poured into the tanks a limited amount of fuel, which is enough only for output mode and landing. These measures allowed to achieve a unique thrust-weight ratio of the aircraft at the start, which was responsible almost two units. P-42, because of this, was able to accelerate and move the sound barrier, while being in the mode of vertical climb.

P-42

Unfortunately, a large thrust-caused quite a peculiar problem: the brake P-42 not kept him at the start, at a time when engines were displayed on the afterburners. As a result, the engineers adopted an unconventional solution: P-42 with an electronic lock and cable to pick up a caterpillar tractor, which was protected from the effects of hot gases of aircraft engines massive armor plate. Powerful tractor left on the runway and their weight restrained aircraft from early breakaway. At the moment the necessary locking uncoupled, thereby clearing the way P-42, the stopwatch and the cameras, and he made rush, setting a world record.

During the preparation of the aircraft to the world records posted leading engineer Rolland G. Martirosov, who later became chief designer.

March 10 1987, the NF Gardener at the P-42 set new records for the climb: 9 and 12 44,2 km in and 55,5 respectively. P-42 next day belongs to the class aviamashin short takeoff and landing. They also set a record climb: in 25,4, 57,4, 75,7 seconds test pilots managed to climb to 3, 12 and 15 km respectively. After some time, a new class of P-42 set a world altitude record level flight - 19 335 m. A few years later it was found on the plane another fourteen world records. Diplomas were awarded to VG Pugachev, OG Choi, NF Gardeners and EI Frolov.

Another instance of the Su-27, who was preparing to set records at the end of 80-ies., The plane became T10-20. By the time he passed the test program, and acted as a constructive-technological layout T 10KTM Su-27K.

Enhanced for the new record car features original: it has been abolished podbalochnye ridges and ending vertical tail and wing mounted on the end of an ogival shape, which were applied on the first machine T-10. Engineers everything was done to make the weight of the aircraft are smaller and placed inside the fuselage as much fuel. It was filmed Optoelectronic sighting device, radar, and other blocks SUV, hardpoints missiles, gun mount on the bottom surface of the air intake abolished leaf feeding, etc. He was replaced by RSL nose radome, which acts as a simple metal cone. The central elongated tail boom was extended fuel tank, and a head portion of the fuselage has been found to place extra fuel.

P-42

As a consequence, at takeoff weight in 26,6 thousand. Kg of fuel supply on the aircraft reached 12,9 thousand. Kg (9,4 thousand. Kg for conventional Su-27). Due to the above tuning of aircraft increased the range and well prepared for the world record. But over time for many reasons, interest in the data record flight was gone, and it was transferred to the Aviation Museum, located at the Central Airport in Moscow.

P-42 characteristics:

 

  • Crew: 1 people
  • Length: 19,65 m
  • Wingspan: 14,70 m
  • Height: 5,87 m
  • Wing area: 59,02 m²

 

Weight:

  • maximum take-off: 14100 kg (26600 kg for T-10-20)
  • Weight Fuel: 12900 kg (for the T-10-20)
  • Wing loading: <239 kg / m² (<450 kg / m² T-10-20)

 

Engine

  • Engine Type: Bypass turbofan with afterburner
  • Model "P-32» (forced AL-31F)

 

Link:

  • Maximum: 2 × 7600 kg
  • afterburner: 2 × 13600 kg

 

  • Engine weight: 1530 kg
  • Flight characteristics
  • The maximum speed at height: 2500 km / h (M = 2,35)
  • Battle ceiling: 19335 m (record set in June 10 1987 years)
  • Thrust-to-weight ratio: 1,93 kg / kg

 

Sukhoi P-42. Gallery.

Sukhoi P-42-plane on the runwaySukhoi P-42-aircraft before take-offP-42-preparation for flight

P-42 - aircraft in fleetP-42 closeupP-42-enlarged version

P-42-top viewP-42-side viewP-42-in aviation in the open-air museum

P-42foto aircraftP-42-picture plane on the runwayP-42-photo

 

 

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