APU Flashcards

1
Q

Type

A

Allied Signal RE 220

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2
Q

APU max Operating Altitude (ft)

A

41.000

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3
Q

Max Alt APU Bleed Air

—> Packs (ACUs) (ft)

A

25.000

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4
Q

Max Alt APU Bleed Air

—> Engine Start (ft)

A

25.000

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5
Q

APU Gen Max Load (kVA)

A

40

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6
Q

APU max RPM (%)

A

106

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7
Q

APU max continuous

On ground

A

682 - 789

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8
Q

EGT

In-flight

A

773 - 806

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9
Q

APU max EGT

A

1.038

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10
Q

OVSPD

auto shutdown in-flight & on ground

true or false?

A

true

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11
Q

OVTP
auto shutdown at touch-down
+ how many seconds?

A

60

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12
Q

Min OAT for cold soaked APU

start on ground (degrees Celsius)

A

-40

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13
Q

APU starter motor duty cycle

max starts / start attempts / hr

A

3

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14
Q

Min delay for APU start between cycles (in Min)

A

2

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15
Q

Starter cut-out on ground (% rpm)

A

46

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16
Q

Ignition cut-off (% rpm)

A

95

17
Q

Max Alt for APU start in-flight (ft)

A

37.000

18
Q

Starter cut-out-in-flight (% rpm)

A

60

19
Q

APU max EGT during start

degrees Celsius

A

692 - 1.038

20
Q

APU AVAIL (approx % rpm + secs)

A

99 + 2