Yakovlev_Yak-60 Knowpia

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

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.

[Gordon-1] Gordon, Yefim; Dmitry; Sergey Komissarov (2005). OKB Yakovlev. Hinkley: Midland Publishing. ISBN 1-85780-203-9.

[Gunston-2] Gordon, Yefim; Gunston, Bill (1997). Yakovlev aircraft since 1924 (1. publ. ed.). London [u.a.]: Putnam [u.a.] ISBN 978-0851778723.

[1]

[2]

Summary

Development edit

Specifications (Yak-60 estimated) edit

See also edit

References edit