What does PT6A stand for?
Pratt & Whitney Canada PT6
| PT6 | |
|---|---|
| A PT6A-20 on display at the Canada Aviation and Space Museum | |
| Type | Turboprop / turboshaft |
| National origin | Canada |
| Manufacturer | Pratt & Whitney Canada |
What is the usable oil tank capacity for a PT6A 52?
Usable capacity 281 litres. Oil Tank Capacity: 5.7 litres at 2.013m forward of datum. Flight Manual: AIR 2138 at latest CAA approved revision. The PT6A engine installation is covered by modification PAC/CR/210.
How does a PT6A engine work?
The PT6A is a two-shaft engine with a multi-stage compressor driven by a single-stage compressor turbine and an independent shaft coupling the power turbine to the propeller through an epicyclic concentric reduction gearbox.
What are the two primary functions of the beta valve on a PT6A?
The primary functions of the beta valve are (1) to prevent the propeller from entering reverse uncommanded and (2) to control blade angle (and RPM) while in reverse command.
What is NG on a PT6?
Ng: Gas generator rotation speed indication. Ng is an indication of the power output of the engine. The pilots and technicians reference the Ng speed to determine the engine power setting. In PT6A-27 turbo-prop engine, gas generator speed is 37,500 rpm at Ng = 100 percent.
What is Pyair?
Px and Py are modified air pressure bleeding from axial compressor. Py is connected to Ng speed governor in FCU through an external pressure air pipeline. Propeller speed governor. The propeller speed governor consists of three parts: constant speed unit, beta valve and Nf speed governor.
How much does it cost to overhaul a pt6?
PT6A Series Overhaul The PT6A is the most popular turboprop engine in history. It’s well known for its extremely high reliability. Overhaul costs range from $160,000 to $600,000.
