Parameters 2 Flashcards by Steve Nelson

Q

Oil pressure: operating range

A

11-90

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Q

Oil pressure: idle

A

13-35

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Q

Oil pressure: light out

A

13

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Q

Oil pressure: light on

A

11

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Q

Oil temp: continuous operation

A

Below 160C

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Q

Oil temp: 10 min

A

161-175

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Q

Oil temp: shutdown above

A

175

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Q

Oil temp: before TRT

A

> 5C

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Q

Fuel flow: start

A

300-680

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Q

Fuel flow: breakout

A

1000

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Q

Fuel flow: idle

A

400-800

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Q

Fuel flow: possible hot start

A

680

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Q

EGT: max indication time

A

10 sec

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Q

EGT: cross check

A

40% N2 below 600

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Q

EGT: start

A

<725

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Q

EGT: GI and FI

A

<725

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Q

EGT: max continuous operation

A

870

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Q

EGT: 5 min max

A

871-905

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Q

EGT: above idle

A

<905

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Q

GI limits: N1

A

16-22

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Q

GI limits: EGT

A

<725

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Q

GI limits: N2

Study These Flashcards

A

54-62

Q

GI limits: fuel flow

Study These Flashcards

A

400-800

Q

GI limits: oil pressure

Study These Flashcards

A

13-35

GI limits: oil temp

< 160C

Max RPM: N1

102

Max RPM: N2

105

Fuel load min: ground idle

15K

Fuel load min: flight idle (36% N1)

40K

Fuel load min: TRT

60K

N1 for flight idle

36% N1

Max CG for runs

35%

Sub-idle start stall

N2 roll back EGT steadily rises

No-start

No EGT rise in 10 sec

Hot start

EGT over 725

False start

EGT rise No RPM increase

Hung start

Light off Rapid rise in EGT Slow RPM Stabilize below GI

What shouldn’t you use as a stall indicator?

Fuel flow

Starter cuts-out (light off) at how many N2 RPM

43-45% in 3-9 sec

Starter duty cycle (starting)

90 sec on- 60 off, 90 on- 60 off 90 on- 10 min off

Starter duty cycle (motoring)

5 min on- 10 off, 5 on- 30 min off

Reserve brake

3100 psi

Engine drive hydro pumps

2850-3200 psi

Left system reservoir

3.75-4.25 gal

Right system reservoir

4-4.5 gal

Min LH and RH reservoir after start

2 gal

What other condition can also illuminate the Low Pressure Light?

Clogged scavenge oil filter

Starter light fails to go out 10 sec after 45% N2

- place throttle to cutoff - engine bleed air switch to off

Do not engage starter above ___ N2

25%

Icing conditions

<50°F w/ visible moisture

How long to reach 20% N2 when starting?

30 sec

Advance throttle to start at…

20% N2 min-25% N2

Max motor

<1% increase in 5 secs

When should start switch be placed in ignition?

Temp at or below 32°F