Turbo-Shaft Aircraft Engine

Turbo-shaft aircraft engines are a type of gas turbine engine used in helicopters and some fixed-wing aircraft. They are classified under the supply class "Gas Turbines And Jet Engines, Aircraft, Prime Moving; And Components" in the supply group "Engines, Turbines, And Components."

Turbo-shaft engines are designed to provide power for the rotor system of a helicopter, rather than directly propelling the aircraft forward like turbofan or turboprop engines. They consist of a gas generator section and a power turbine section.

The gas generator section includes a compressor, a combustion chamber, and a turbine. The compressor draws in air and compresses it before it enters the combustion chamber. Fuel is injected into the combustion chamber and ignited, creating a high-pressure and high-temperature gas flow. This gas flow then passes through the turbine, which extracts energy to drive the compressor and any other accessories.

The power turbine section is connected to the gas generator section and is responsible for driving the helicopter's rotor system. The high-energy gas flow from the gas generator is directed to the power turbine, which converts the energy into mechanical power. This power is then transmitted to the helicopter's rotor system through a shaft.

Turbo-shaft engines are known for their high power-to-weight ratio, compact size, and ability to provide a steady and reliable power output. They are commonly used in various types of helicopters, including military, commercial, and private helicopters.

In summary, turbo-shaft aircraft engines are gas turbine engines specifically designed to provide power for the rotor system of helicopters. They are classified under the supply class "Gas Turbines And Jet Engines, Aircraft, Prime Moving; And Components" in the supply group "Engines, Turbines, And Components."