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A set of rotating blades that extracts power from a flow. In aviation this primarily refers to the section of a gas turbine that extracts power from the combusted gases, as part of a turboshaft, turboprop, or jet engine.

1 vote
2 answers
260 views

Why is the turbine that drives the compressor is placed before the free turbine in a gas tur...

The power turbine comes after the compressor turbine but power turbine is the turbine that propels the vehicle. … Why is the power turbine placed after compressor turbine if it is the one propelling the vehicle, shouldn't it be placed first so that it gets the hottest gas and extracts the most energy and propels the …
Timothy Scherer's user avatar
7 votes
5 answers
3k views

How do gas turbine engines and turbofan engines keep constant compressor side rpm?

How do the RPMs stay constant in a gas turbine engine? … My question is that how do gas turbine engines can stay at peak power rpm while still throttle is fully applied? Shouldnt it keep increasing in rpms like car engine? …
Timothy Scherer's user avatar
1 vote
1 answer
1k views

What is the purpose of variable stator vanes in the power turbine part of a free shaft gas t...

both M1 Abrams tank and T-80 tanks have free shaft gas turbine engines and both of their engines have variable stator vanes in their power turbine part. … Thus, the guaranteed protection of the turbine rotor from misuse is ensured. …
Timothy Scherer's user avatar