Antonov An-70 Transport Aircraft - Russia/Ukraine:
The Antonov An-70 is a four-engine medium-range transport aircraft, and the first large aircraft to be powered by propfan engines. It was developed in the late 1980s by the Antonov design bureau to replace the obsolete An-12 military transport aircraft. However, the dissolution of the Soviet Union prevented the mass production of the type. The maiden flight of the first prototype took place on 16 December 1994 in Kiev, now independent Ukraine. Within a year the prototype plane had suffered a mid-air collision. A second airframe was produced and tests continued but numerous further attempts to start production have been unsuccessful.
The An-70 is a high-wing monoplane with four wing-mounted propfan engines; it has a full glass cockpit and fly-by-wire controls. The aircraft has a 19.1 metre (22.4 metre with the ramp) x 4 metre x 4.1 metre cargo space and can carry 47 tonnes of cargo, or approximately 300 troops or 200 injured personnel. Powered by four Progress D-27 propfan engines, each turning a pair of contra-rotating scimitar propellers.
The An-70 was the first Eastern-bloc transport aircraft to be built according to the new IAC AP-25 norms that conformed with JAR-25. This would allow civilian certification in both Western Europe and North America. Another first was the use of a MIL-STD-1553B-compatible data bus, which allows NATO avionics and defensive suites to be installed. More details