Turboshafts Flashcards
Why are turbo-shaft engines rated in shaft horsepower?
Because the engine is not designed for thrust
Definition of a turbo-shaft
Engine that delivers power through a shaft
What are the advantages of using a free power turbine?
High rotational speeds
Easier starting
Auto disconnect of the inoperative engine
How are 2 engines connected?
Combining gearbox
Where would you find a spray unit?
Freewheel unit
How does a centrifugal particle separator remove debris?
Pushes heavier particles out with centrifugal force
What is the purpose of the freewheel unit(s) in a helicopter transmission?
Auto disconnect of the inoperative engine
How can debris be scavenged overboard from a centrifugal particle separator?
The vanes create a swirl which pushes outwards out to the sides before the outlet tube
What is the purpose of the universal coupling?
To take on vibration during operation
