Yakovlev Yak-60
Yakovlev Yak-60 (known as Yak-32 in some sources)[1] is the possible designation for an experimental Yakovlev tandem-rotor heavy-lift helicopter design of the late 1960s. This design never progressed beyond the model stage.[2]
Development
[edit]This helicopter was designed in the late 1960s, and may have been a competing design to the Mil Mi-12 heavy lift helicopter. It featured two Mil Mi-6 rotors in tandem, each driven by a pair of 6,500 hp (4,800 kW) Soloviev D-25VF engines, potentially giving it four times the payload capacity of the Boeing CH-47 Chinook. The cockpit would have been similar to that of the Yakovlev Yak-24. Compared to the radical Mi-12, the Yak-60 design was far more conventional, though two Mi-12s were produced and no Yak-60s.[2]
It has been suggested that the designation Yak-60 was based on an extant study model which had the number "60" painted prominently on its side.[2]
Specifications (Yak-60 estimated)
[edit]Data from [2]
General characteristics
- Crew: three
- Capacity: 42 t (93,000 lb) of cargo
- Length: 46 m (150 ft 11 in)
- Empty weight: 55,000 kg (121,254 lb)
- Max takeoff weight: 100,000 kg (220,462 lb)
- Powerplant: 4 × Soloviev D-25VF turboshaft engines in pairs for each rotor, 4,800 kW (6,500 shp) each
- Main rotor diameter: 2 × 35 m (114 ft 10 in)
Performance
See also
[edit]References
[edit]
- ^ Gordon, Yefim; Dmitry; Sergey Komissarov (2005). OKB Yakovlev. Hinkley: Midland Publishing. ISBN 1-85780-203-9.
- ^ a b c d Gordon, Yefim; Gunston, Bill (1997). Yakovlev aircraft since 1924 (1. publ. ed.). London [u.a.]: Putnam [u.a.] ISBN 978-0851778723.