The Mil Mi-54 was a projected twin-turbine civil utility helicopter

Helicopter

A helicopter is a type of rotorcraft in which lift and thrust are supplied by one or more engine-driven rotors. This allows the helicopter to take off and land vertically, to hover, and to fly forwards, backwards, and laterally...

, first announced in 1992, fit to replace the Mi-2

Mil Mi-2

The Mil Mi-2 is a small, lightly armored transport helicopter that could also provide close air support when armed with 57 mm rockets and a 23 mm cannon.-Design and development:...

 and the Mi-8

Mil Mi-8

The Mil Mi-8 is a medium twin-turbine transport helicopter that can also act as a gunship. The Mi-8 is the world's most-produced helicopter, and is used by over 50 countries. Russia is the largest operator of the Mi-8/Mi-17 helicopter....

 helicopters. It was planned to use two 574 kW Saturn/Lyulka AL-32 turboshaft engines, four-bladed main and tail rotors, and fixed tricycle-type landing gear with one nosewheel and two rear wheels on sponsons.