The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.
an air-breathing jet engine in which the fuel and air are fed to the combustion chamber periodically. The air that enters the engine is compressed in flight by the ram effect resulting from the aircraft’s forward velocity.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.