Yakovlev Yak-28 was a unique plane that was often overlooked because it was born at the same time as the famous Mig-21.

Introduce

The 1950s – 1960s of the last century were the period of rapid development of jet aircraft. In response to the military’s request for a supersonic bomber, the Yakovlev design department developed the Yak-28, based on the Yak-129 prototype.

The first flight was made on March 5, 1958, and entered service in 1960. It was first shown to the public at large during the 1961 Tushino air show.

Yakovlev Yak-28
Yakovlev Yak-28

Design

Yakolev’s approach to the Yak-28 was a no-frills design, similar to the other Soviet turbojet-powered aircraft of the time. The Yak-28 had a conventional aerodynamic design, it was a cantilevered, high-mounted, swept-shaped wing and a four-bearing bicycle-type chassis. Glider aircraft made entirely of aluminum alloys.

The fuselage was a semi-monocoque circular cross section, turning into an oval in the tail section. Behind the nose was the cockpit and compartment for the front landing gear.

The central part of the aircraft was the bomb bay, rear landing gear compartment and fuel tanks. Behind the cockpit was a gargrot, which passes into forkil. It contains the rudder steering, electrical wiring and piping.

Powerplant

The Yak-28 was powered by two Tumansky R-11 afterburning turbojet engines, producing 46 kN of dry thrust each, and 62 kN thrust with afterburner. At the entrance of each of the engine nacelle there was an adjustable cone, the engines are equipped with automatic starting devices and an anti-icing system.

The Soviet aircraft can reach a top speed of 1,840 km/h (1,140 mph), a range of 2,500km (1,600 mi), and a service ceiling of 16,750m (54,950 ft).

Armament

The original Yak-28 design was a tactical bomber with the ability to carry 3 tons of ammunition and a 23mm cannon. It was later developed for various missions such as: Yak-28R reconnaissance; electronic countermeasures Yak-28PP; training aircraft Yak-28U. The Yak-28P long-range interceptor fighter version was equipped with Oriol-D radar and two radar-guided R-98 air-to-air missiles, with a range of about 20km.

Yak-28 was the first jet aircraft that was able to carry nuclear weapon. It could take on board and ammunition with a nuclear warhead, for them the bomb compartment was equipped with a thermoregulation system.

Specifications

(Source: Wikipedia)

General characteristics

  • Crew: 2
  • Length: 21.6 m (70 ft 10 in)
  • Wingspan: 12.5 m (41 ft 0 in)
  • Height: 3.95 m (13 ft 0 in)
  • Wing area: 37.6 m2 (405 sq ft)
  • Empty weight: 9,970 kg (21,980 lb)
  • Gross weight: 15,000 kg (33,069 lb)
  • Max takeoff weight: 20,000 kg (44,092 lb)
  • Powerplant: 2 × Tumansky R-11 afterburning turbojet engines, 46 kN (10,000 lbf) thrust each dry, 62 kN (14,000 lbf) with afterburner

Performance

  • Maximum speed: 1,840 km/h (1,140 mph, 990 kn)
  • Range: 2,500 km (1,600 mi, 1,300 nmi)
  • Service ceiling: 16,750 m (54,950 ft)
  • Wing loading: 531 kg/m2 (109 lb/sq ft)
  • Thrust/weight: 0.62

Armament

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