15.13 Flashcards
What are the 3 main engine controls?
Engine start, fwd thrust, reverse thrust
How is the ignition and fuel supply to the combustion chamber switched on?
Engine start lever
The low pressure fuel shut of valve is usually an…
Electric motor driven valve
The high pressure shut of valve…
Is mechanically controlled
How is the HP fuel valve controlled?
Electrically by master switch
What are the main positions of the thrust lever?
Idle and take off
What are the 3 tasks of reverse thrust controls?
Activate reverse thrust, increase engine power, block reverse thrust
What are the 3 reverse thrust positions?
Normal, reverse, full reverse
To start combustion what do you need?
Ignition source
What can bad weather cause with ignition and the combustion chamber and what is used to prevent it?
A flame out can occur and we will use continuous ignition
How many ignition systems does each engine have?
2
Where are ignition plugs installed on the engine?
Below the centre line of the engine
Some ignition plugs have …. Rings and are …. Colour
2 , blue
What is used as an insulator in ignition plugs?
Beryllium oxide
Starting systems for gas turbine engines can be what?
Pneumatic or electric
