15.16 turboprop engines Flashcards
1
Q
what type of engine is designed so that there is no mechanical connection between the gas generator and the free-power turbine
A
free-power turbine engine
2
Q
what are the two types of turbine engine
A
gear/direct-coupled
free-power
3
Q
what are the two main types of reduction gears
A
parallel spur gear
epicyclical
4
Q
what can parallel spur gears either be
A
straight cut
helical
5
Q
what are the two epicyclic reduction gears
A
fixed annulus
rotating annulus
6
Q
what are the different types of levers on turboprops
A
single-lever
dual-lever
thrust lever
beta controls
propeller lever
control lock
7
Q
what are the different types of overspeed safety devices
A
automatic drag limiting system
pitch locking
propeller overspeed governor
turbine shaft failure
