9. Pneumatics Flashcards
1
Q
What is the pressure and temperature of bleed air supply at cruise RPM, and how does it change with engine speed?
A
80 psi and 450°F and is directly proportional to engine rpm (NG)
2
Q
How is air used for cabin heat routed?
A
Directly to heating system without cooling
or pressure reduction
3
Q
What NG is required to operate intake defectors and why don’t other station 3 bleed valves have to be open for this system to function?
A
About 80%NG to operate
Position is upstream of other bleed air valves so they don’t have to be ON to extend intake deflectors
