SOVIETS WORKING ON SUPERSONIC SU-25 SUCCESSOR
26 June 1991
Vol. 158, No. 62
Copyright 1991 McGraw-Hill, Inc.
Sukhoi is working on a supersonic follow-on to the Su-25 armored attack aircraft, according to published reports in Yugoslavia.
The authoritative Aerosvet magazine quoted Soviet sources who described the Su-37 as a supersonic fourth-generation combat aircraft called the Shturmovik. Provisional details listed for the canard-equipped plane reveal a 38.71 ft. swept wingspan with a total area of about 538 square feet.
Powered by a single 40,000 pounds-thrust afterburning turbofan, maximum takeoff weight of 55,116 pounds reportedly includes an external weapons load of 18,740 pounds on no fewer than 18 external pylons--plus a 30mm cannon. Low-level combat radius is quoted as 431 nautical miles with an 11,023 pound combat load.
Maximum speed is estimated at 809 knots at sea level or Mach 2 at altitude, with a practical operating ceiling of about 50,000 feet. The Aerosvet report also mentions folding wings for the Su-37, implying possible use for deck operations from the new Tbilisi-class carriers.
Radar "the Beetle" (1986) from MiG-29M, most likelyApparently the radar would have been a set from Leninets called Kinzhal which was also the originally planned set for the Su-39 upgrade and may have been a competitor to the Arbalet system ultimately used on the Mi-28N and Ka-52