Which stage is used as bleed air in CDP?

The use of bleed air from a specific stage in a gas turbine engine is essential for various operational requirements, such as engine starting, air conditioning, and anti-ice systems. In many commercial aircraft gas turbine engines, the 16th stage is typically designated as the stage from which bleed air is extracted for these purposes.

The 16th stage is strategically selected because it provides bleed air at a suitable pressure and temperature, allowing it to effectively meet the demands of various systems without unduly affecting engine performance. This choice helps maintain optimal engine efficiency while still supplying the necessary air for auxiliary uses. The bleed air taken from this stage is utilized in various mechanisms onboard the aircraft, enhancing the overall operational capabilities without compromising safety or performance.

Understanding which stage supplies bleed air is crucial for technicians, as it enables them to troubleshoot systems, perform maintenance accurately, and ensure the gas turbine operates within its optimal parameters.