Saturn AL-34


The Saturn/Lyulka AL-34 was an unbuilt turboshaft/turboprop engine for rotary and fixed-wing aircraft, proposed by the Soviet Union in the early 1990s. In turboprop form, the engine was offered for light aircraft such as the Sukhoi Su-86 eight-passenger business airplane, the Myasishchev M-101T Gzhel business jet, the ROS-Aeroprogress T-101 Grach nine-passenger aircraft, its derivative T-108 Zolotoy Orel nineteen-passenger aircraft, and the Krunichev T-511 "AIST-M". As a turboshaft, the AL-34 was proposed to power the Mil Mi-54 and the Kazan Ansat helicopters. The engine was also considered for unconventional aircraft such as the Mil Mi-30L Vintoplan tiltrotor aircraft, and it was to be an auxiliary engine for powering the boundary layer control system and air cushion on the EKIP flying saucer.
The AL-34 was one of the few engines to use a recuperator to recover and reuse waste heat from combustion.
The engine came in two versions. The AL-34-1 was an engine that produced in cruise conditions. It weighed, which included a compact, recuperator. The AL-34-2 was a twin-configuration engine producing, weighing about, and using a common gearbox in a single module.
In October, Saturn/Lyulka confirmed that it was still developing the AL-34 engine in the power range, and it was working with Kawasaki on stationary powerplant applications. The AL-34 would cost 200-240 thousand dollars, and it would require about 22 million dollars to complete development. As late as January, the engine was still being proposed for the T-511 "AIST-M" derivative of the Krunichev T-411 Aist light utility aircraft. However, the AL-34 never entered production.

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