Yakovlev Yak-60

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Yak-60, sometimes called Yak-32, was a late-1960s experimental tandem-rotor heavy-lift helicopter design by Yakovlev. It never progressed beyond a scale model. It may have been a rival to the Mil Mi-12. The plan used two Mil Mi-6 rotors in tandem, each driven by two 6,500 hp Soloviev D-25VF engines (about 4,800 kW), potentially giving payloads four times that of a CH-47 Chinook. The cockpit would have resembled the Yakovlev Yak-24. Compared to the radical Mi-12, the Yak-60 was more conventional, and no Yak-60s were built (two Mi-12s were produced). Some say the name Yak-60 came from a study model with the number 60 painted on its side.