An auxiliary power unit (APU) is a device on a vehicle that provides energy for functions other than propulsion. They are commonly found on large aircraft, naval ships and on some large …

Jun 7, 2022 · What is an APU Engine? APU stands for ‘auxiliary power unit’. It is a small engine, often mounted in the tail, providing electrical power and compressed air on the ground and …

Mar 29, 2025 · Pilots will often use the APU to start one of the plane's main engines. If an aircraft has one, it's typically found in the tail cone, an engine nacelle, or in the wheel well.

Honeywell has designed and tailored many military application auxiliary power units. More compact and significantly lighter than its nearest competitor, the RE100 APU is a perfect fit for …

Mar 11, 2018 · Key Takeaways: An Auxiliary Power Unit (APU) is a small turbine engine in an aircraft that serves as an additional energy source, primarily used on the ground.

Pratt & Whitney is an industry leader in the design, manufacture and maintenance of APUs, a position built from its foundation as a major supplier of gas turbine engines for a host of …

Dec 10, 2023 · The APU is a small turbine engine located in the tailcone of most commercial and civil aircraft. The APU is used for non-propulsion functions, such as pressuring air for starting …

Aug 11, 2022 · This self-contained unit represents a constant-speed gas turbine engine located in the airplane's tail cone which is isolated in a titanium fireproof compartment from the rest of …

Nov 18, 2024 · The APU engine design incorporates advanced fuel cell technology principles, allowing for efficient power delivery while maintaining appropriate deterioration factors that …

Mar 11, 2024 · The Auxiliary Power Unit (APU) is a small gas turbine engine typically located at the rear of an aircraft’s fuselage. It plays an important role in ensuring the smooth operation …