What is the rpm of a turboprop?
Turboprop propellors typically range from about 9000 RPM (give or take) to about 2500 RPM.
Is the PT6A jet engine?
The Pratt & Whitney Canada PT6 is a turboprop aircraft engine produced by Pratt & Whitney Canada. The PT6A covers the power range between 580 and 1,940 shp (430 and 1,450 kW) while the PT6B/C are turboshaft variants for helicopters.
What is Torque on PT6?
Typically on descent someone operating a small PT6A should see about 100 foot pounds of torque less by simply by shifting RPM from 2000 to 2200 RPM having an initial torque reading of 1000 foot pounds.
What does PT6 stand for?
Whitney Canada
PT6 is a turboprop aircraft engine that stands for Pratt and Whitney Canada. Pratt and Whitney Canada originally produced the PT6 in 1956 when the president of PWC ordered his engineers to create a turboprop engine designed to replace piston engines.
What RPM does a jet turbine spin?
It’s the small turbine blades that spin, and they’re connected to a shaft, which is connected to the compressor itself and the fan,” Attia explained. That turbine shaft spins around 20,000 RPM — which is really, really fast.
What RPM do jet engines run?
For example, large jet engines operate around 10,000–25,000 rpm, while micro turbines spin as fast as 500,000 rpm. Mechanically, gas turbines can be considerably less complex than internal combustion piston engines.
What type of engine is the PT6?
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.
How much fuel does a PT6 burn?
The turbine inlet temperature inside the engine goes to almost 2,000 degrees F within 30 seconds of start. You are burning about 26 gallons per hour here, at idle.
How a PT6 engine works?
PT6 engine, a lightweight free turbine engine incorporating a reverse flow combustion path, is designed for aircraft propulsion use. It utilizes two counter-rotating turbines; one driving the compressor and the other driving the propeller through a reduction gearbox.
What is NP RPM?
NP – Propeller RPM. NG – Gas Generator Speed.
How much does a PT6 cost?
PT6A Flat-Rate Overhaul Program Pricing
| Engine Model | Basic Price | Capped Price |
|---|---|---|
| PT6A-42 | $331,000 | $391,000 |
| PT6A-64 | $448,000 | |
| PT6A-112 | $282,000 | $377,000 |
| PT6A-114 | $283,000 | $337,000 |
What RPM is 777 engine?
The GE90—installed on some Boeing 777s—is typical in that the fan stage (N1) rotates at a maximum of 2,550 RPM while the compressor stage (N2) rotates at a maximum of 10,850 RPM. The blade tips, at 11,000 RPM, are well above Mach 1, which partially accounts for the high noise levels of a jet engine.
What kind of engine is a PT6A engine?
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 does a free turbine compressor do in a PT6A engine?
This free turbine compressor is designed to provide the necessary compressed air to the Hot Section of a PT6A engine for use in cooling and fuel – air mixture / combustion.
What is the rated RPM of a Pratt and Whitney PT6?
Rated rpm is around 38,000 rpm and a gearbox is needed to reduce propeller rpm down to a usable range of around 2,000 rpm to 2,300 rpm. The PT6 is a free turbine engine, … meaning that the power turbine and the
What is the torque conversion factor on a PT6A?
for use of this formula. The PT6A-6 through the -21 uses a conversion factor of 30.87 X torque in PSI, the -27/-28/-34 uses 30.57 X torque in PSI. The -45 through -67 use 83.635 as a torque conversion factor.