P-42 Streak Flanker prototype (T-10) – record breaker

P-42 record breaker

P-42_Flanker

A stripped version of the Su-27, without armament or electronics, used to set time-to-height records.
Accordingly, one of the T-10S prototypes was stripped of all armament, radar and operational equipment, the fin tips were removed, as was the tail boom and the wingtip launch rails. Even the radome was replaced by a lighter metal fairing. Stripped of paint, the aircraft was polished and all drag-producing gaps and joints were sealed. The engines were modified to give an increase in thrust of 2,204lbs – giving the P-42, as the modified aircraft was designated, a phenomenal thrust-to-weight ratio of almost 2:1.

081The main wheel brakes could not hold the aircraft at full thrust so the P-42 was anchored to a tracked armoured vehicle by a steel hawser with an electronic lock. With the engines wound up to full power, the hawser was released and the P-42 leaped into the air and climbed at an optimum angle to altitude.

 

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Between 1986 and 1988 the P-42, piloted variously by Victor Pugachev, Nikolai Sadovnikov, Oleg Tsoi and Yevgeni Frolov, took no less than 27 records from the Streak Eagle, including time-to-height records for 3000, 6000, 9000, 12000 and 15000 meters, a height record of 19335m (63435 ft) and time-to-height records with various payloads. The aircraft even set records for STOL aircraft with a take-off run of less than 1540ft ! Most of these records still stand to this day.

 

 

Sub-class C-1h (Take-off weight 12000 to less than 16000 kg)
Group 3 (Jet engines)

Type of record Performance Pilot Date
Time to climb to a height of 3000 m 25s Victor G. PUGACHEV 27/10/1986
Time to climb to a height of 6000 m 37s Victor G. PUGACHEV 15/11/1986
Time to climb to a height of 9000 m 44s Nikolai SADOVNIKOV 10/03/1987
Time to climb to a height of 12000 m 55s Nikolai SADOVNIKOV 10/03/1987
Time to climb to 3000 m with 1000 kg payload 28s Oleg TSOY 17/05/1988
Time to climb to 6000 m with 1000 kg payload 38s Oleg TSOY 19/04/1988
Time to climb to 9000 m with 1000 kg payload 48s Oleg TSOY 17/05/1988
Time to climb to 12000 m with 1000 kg payload 59s Oleg TSOY 17/05/1988

Sub-class C-1i (Take-off weight 16000 to less than 20000 kg)
Group 3 (Jet engines)

Type of record Performance Pilot Date
Altitude with 1000 kg payload 22250 m Victor G. PUGACHEV 20/05/1993
Greatest mass carried to a height of 15000 m 1015 kg Victor G. PUGACHEV 20/05/1993
Time to climb to 15000 m with 1000 kg payload 2mn 6s Victor G. PUGACHEV 20/05/1993
Time to climb to a height of 15000 m 2mn 6s Victor G. PUGACHEV 20/05/1993

Class N / Group 3 : Jet engine

Type of record Performance Pilot Date of record
Altitude in horizontal flight without payload 19335 m Nikolai SADOVNIKOV 10/06/1987
Time to climb to a height of 3000 m 26s Nikolai SADOVNIKOV 11/04/1987
Time to climb to a height of 6000 m 37s E. I. FROLOV 31/03/1988
Time to climb to a height of 9000 m 47s E. I. FROLOV 31/03/1988
Time to climb to a height of 12000 m 58s Nikolai SADOVNIKOV 11/03/1987
Time to climb to a height of 15000 m 1mn 16s Nikolai SADOVNIKOV 11/03/1987
Time to climb to 3000 m with 1000 kg payload 28s Oleg TSOY 17/05/1988
Time to climb to 6000 m with 1000 kg payload 38s Oleg TSOY 19/04/1988
Time to climb to 9000 m with 1000 kg payload 48s Oleg TSOY 17/05/1988
Time to climb to 12000 m with 1000 kg payload 59s Oleg TSOY 17/05/1988

Sub-class C-1 (Unlimited take-off weight)
Group 3 (Jet engines)

Type of record Performance Pilot Date of record
Time to climb to a height of 3000 m 25.37s Victor G. PUGACHEV 27/10/1986
Time to climb to a height of 6000 m 37.05s Victor G. PUGACHEV 15/11/1986
Time to climb to a height of 9000 m 44.18s Nikolai SADOVNIKOV 10/03/1987
Time to climb to a height of 12000 m 55.54s Nikolai SADOVNIKOV 10/03/1987

The visual differences from the basic Su-27

  • Radome was replaced by a lighter metal fairing(1)
  • No avionics, most of outside elements, like IR sight(2) are removed
  • Non-adjustable engine intakes(3)
  • Reduced tail-planes(4) Reduced
  • The fin tips were removed(5)
  • Missing tail-cone(6)
  • su-27-p42-dif
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