Saturday, October 1, 2011


The Yak-28 had a large mid-mounted wing, swept at 45 degrees. The tailplane set halfway up the vertical fin (with cut-outs to allow rudder movement). Slats are fitted on the leading edges and slotted flaps are mounted on the trailing edges of the wings. The two Tumansky R-11 turbojet engines, initially with 57 kN (12,795 lbf) thrust each, are mounted in pods, similar to the previous Yak-25. The wing-mounted engines and bicycle-type main landing gear (supplemented by outrigger wheels in fairings near the wingtips) are widely spaced, allowing most of the fuselage to be used for fuel and equipment. It was primarily transonic, although Mach 1 could be exceeded at high altitude. It was on an Yak-28 that captain Boris Kapustin and lieutenant Yuri Yanov made their heroic feat: on the 6th of April 1966, when one of the engines on their aircraft stopped, they managed to divert their aircraft from a housing estate in Berlin. Both heroes were posthumously awarded with the medal of the Red Banner. Their bodies, along with the wreckage, were raised from the lake by British troops.
  • Crew: two
  • Length: 21.6 m (75 ft 0 in)
  • Wingspan: 12.50 m (41 ft 0 in)
  • Height: 3.95 m (12 ft 11 in)
  • Wing area: 37.6 m² (405 ft²)
  • Empty weight: 9,970 kg (21,980 lb)
  • Loaded weight: 15,000 kg (33,069 lb)
  • Max takeoff weight: 20,000 kg (44,092 lb)
  • Powerplant: 2 × Tumansky R-11 afterburning turbojets, 46 kN dry, 62 kN with afterburning (10,140 lbf dry, 13,670 lbf with afterburning) each
  • Maximum speed: 1840 km/h (1142 mph)
  • Range: 2,500 km (1,550 mi)
  • Service ceiling: 16,750 m (54,954 ft)
  • Wing loading: 531 kg/m² (108.6 lb/ft²)
  • Thrust/weight: 0.62

0 σχόλια:

Post a Comment