SQ372

SQ372, also known as the SQ372, is a type of aircraft engine developed by the Soviet Union in the 1950s. It is a single-shaft, axial-flow turbojet engine designed for use in supersonic aircraft. The engine was first introduced in 1955 and was used in several Soviet supersonic aircraft, including the Sukhoi Su-7 and the Sukhoi Su-9.

The SQ372 is a single-spool engine with a single-stage compressor and a single-stage turbine. It has a thrust-to-weight ratio of approximately 5.5:1, which is relatively high for a turbojet engine of its time. The engine is powered by a single fuel nozzle, which injects fuel into the combustion chamber.

The SQ372 was a significant development in Soviet aviation, as it allowed the country to develop supersonic aircraft that could compete with those of the United States. However, the engine was not without its problems. It was prone to surging, which could cause the engine to stall and shut down. This problem was eventually solved by the development of the more advanced SQ372-1 engine.

Despite its limitations, the SQ372 was a crucial part of the Soviet Union's aviation history. It helped to pave the way for the development of more advanced engines and aircraft, and it remains an important part of the country's aerospace legacy.