15.17 Flashcards
What is a turbo shaft engine
A gas turbine engine that delivers power through a shaft to operate anything other than the propeller
What does SHP stand for
Shaft horse power
At what speeds do turbo shaft engine run at
Very high rotational speeds
What is an application of a turbo shaft engine
Used as an APU
Are turbo shaft engines designed to produce thrust
NO
What is a twin pac
A combo of two PT6 driving a gearbox
A single PT6 can be used for what?
To drive a transmission gearbox
What is a drive system
Fitted to turbo shaft engines to transfer power produced to the components it must drive
Why do you use a universal joint coupling at the transmission on the housing
To ensure that adequate movement of transmission can take place
Where are the hydraulic pumps mounted on and driven by on helicopters
By the transmission gearbox also known as Main Rotor Gearbox (MRGB)
What can the utilitie pump provide
Hydraulic power for utilities such as rescue winch
What is the role of a starter generator for helicopters
Provide electrical power
