its thrust specific fuel consumption (TSFC) at cruise would not exceed at Mach 0.8 and altitude, equivalent to a speed of ; and the Yak-46's per-passenger fuel consumption with the D-627 would be . The subsequent version of the Yak-46 would have the same characteristics and performance outlined for the D-27 earlier, but its cruise TSFC after losses would be at speed. In addition, the Yak-46 would have a planned service life of 60,000 hours, based on an annual average flying time of 3,000 hours. Yakovlev was constructing a wooden mockup of the Yak-46 as of November 1991. By August 1992, it was planning for co-production of the aircraft in South Africa. As of March 1993, Yakovlev had received one order to develop the Yak-46, which temporarily saved the firm from bankruptcy. In mid-1994, the Progress engine design bureau was looking to create a turbojet derivative of its D-27 to use on the Yak-46. Later that year, it was reported that the Yak-46 would use two Progress D-727 high-bypass turbofan engines, without mention of a propfan aircraft version. In 1996, though, another airliner census still described a Yak-46-1 version with D-727 underwing engines followed by a Yak-46-2 with D-27 aft-mounted engines in a T-tail empennage configuration. Because of engine development issues, neither of the planes would fly before the year 2000. Specifications See also Antonov An-180 Boeing 7J7 McDonnell Douglas MD-94X MPC 75 Tupolev Tu-334 Yakovlev Yak-44 References Citations Bibliography External links Yak-046 Propfan-powered aircraft