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)

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2
Q

How is air used for cabin heat routed?

A

Directly to heating system without cooling

or pressure reduction

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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

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