Yakovlev Yak-60

Yakovlev Yak-60 is the possible designation for an experimental Yakovlev tandem-rotor heavy-lift helicopter design of the late 1960. This design never progressed beyond the model stage.^[1]

Development

This helicopter was designed in the late 1960s, and may have been a competing design to the Mi-12 heavy lift helicopter. It featured two Mi-6 rotors in tandem, each driven by a pair of 6,500shp D-25VF engines, potentially giving it four times the payload capacity of the Boeing Vertol Chinook. The cockpit would have been similar to that of the Yak-24. Compared to the radical Mi-12, the Yak-60 design was far more conventional, though ultimately two Mi-12s were produced.^[1]

The designation Yak-60 has been suggested based on an extant study model which has the number "60" painted prominently on its side.^[1]

Specifications (Yak-60)

General characteristics

• Crew: three
• Capacity: 42 tonnes (92,593 lb) of cargo
• Length: 46 m (150 ft 0 in)
• Wingspan: 2x 35 m (115 ft 0 in)
• Height: m (ft)
• Empty weight: 55,000 kg (120,000 lb)
• Max takeoff weight: 100,000 kg (220,000 lb)
• Powerplant: 2 × 4 X D-25VF radials, 26,000shp () each

Performance

References

• Gunston, Bill. Yakovlev Aircraft since 1924. London, UK: Putnam Aeronautical Books, 1997. ISBN 1-55750-978-6.