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DHC-3T > Limitations > Flashcards

Limitations Flashcards

1
Q

Max Ng T/O

A

101.6%

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2
Q

Max Continuous Ng

A

101.6%

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3
Q

Max idle Ng

A

52.6%

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4
Q

Max momentary Ng

A

102.6% for 2 sec

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5
Q

Max reverse Ng

A

101.6%

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6
Q

Climb Ng

A

101.5%

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7
Q

Cruise Ng

A

101.5%

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8
Q

Max Tq t/o

A
  1. 7 PSI @ 2200 RPM
  2. 5 PSI @ 2000 RPM

Straight line variation between these settings

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9
Q

Max momentary Tq

A

68.4 PSI (2 Sec)

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10
Q

Max reverse Tq

A

64.5 PSI

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11
Q

Max ITT T/O

A

790 degrees c

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12
Q

Max Cont ITT

A

790 deg c

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13
Q

Max Idle ITT

A

685 deg c

Increase Ng to keep this limit

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14
Q

Max momentary ITT

A

850 deg c

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15
Q

Max reverse ITT

A

790 deg C

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16
Q

Max climb ITT

A

765 deg c

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17
Q

Max cruise ITT

A

740 deg c

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18
Q

Max Np RPM T/O

A

Max Tq 58.7 @ 2200 RPM

Max Tq 64.5 @ 2000 RPM

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19
Q

Max momentary Np RPM

A

2420

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20
Q

Max reverse Np RPM

A

2120 RPM

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21
Q

Overspeed governor will limit prop to what?

A

2288 RPM 104%

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22
Q

The overspeed governor test switch will limit prop RPM to?

A

2050 RPM

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23
Q

Fuel topping governor (Nf) will limit prop RPM to?

A

6% above selected RPM

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24
Q

Time limit in reverse?

A

1 minute

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25
Q

What is the min and max observed oil pressure?

A

Normal oil pressure is 85-105 psi at Ng above 72% with oil temp between 60-70 deg c. Oil pressure below 85 psi is undesirable and should be tolerated only for the completion of the flight, preferably at reduced power setting. Oil pressure below 40 psi is unsafe and requires landing as soon as possible, using min power to sustain flight.

26
Q

What is the min and max oil temp with t/o power?

A

10-99 deg c

27
Q

Min and max oil temp at idle

A

-40 to 99 deg c

28
Q

Min and max oil temp in reverse

A

0 to 99 deg c

29
Q

What type of oil?

A

BP2380

Do not mix brands

30
Q

Normal oil level?

A

Up to 4 quarts low

-0.5 quarts lower in zero pitch

31
Q

Fuel types?

A

Jet-A, Jet-A1, JetB, AVGAS

32
Q

AVGAS limitations?

A

AVGAS may burn for up to 150 hrs of an engines life

33
Q

Fuel capacity?

A

Front 415 lbs
Centre 693 lbs
Rear 340 lbs

34
Q

Min, max, and normal fuel boost pump pressure?

A

Min 5 psi
Max 35 psi
Normal 25 psi

35
Q

How many fuel nozzles?

A

14 total

10 primary, 4 secondary

36
Q

Starter limitations

A

30 sec on, 1 min off
30 sec on, 1 min off
30 sec on, 1 hour off

37
Q

Battery type?

A

2 X 24V, 31 Amp/hr

38
Q

Starter Generator Voltage

A

28V

39
Q

Overvoltage circuit breaker switch max volts

A

31 volts

40
Q

Max flap travel

A

Landing flap 52 deg

41
Q

Max capacity aft cargo compartment

A

650 lbs

42
Q

Max cargo capacity per float hatch

A

250 lbs

43
Q

Wingspan

A

58’1”

44
Q

Length

A

45’10”

45
Q

Vx

Best angle

A

83 mph (t/o flap)

46
Q

Vy

Best rate

A

100 mph

47
Q

Recommended climb speed

A

110 mph

48
Q

Vmo

A

132 mph

49
Q

Va

A

124 mph

50
Q

Vfe

A

93 mph

51
Q

Recommended glide speed

9000 lbs

A

100 mph

52
Q

Stall speed
9000 lbs
Flaps up
Wings level

A

77 mph

53
Q

Stall speed
9000 lbs
Flaps t/o
Wings level

A

64 mph

54
Q

Stall speeds
9000 lbs
Flaps landing
Wings level

A

60 mph

55
Q

Stall speed
9000 lbs
Flaps up
45 deg bank turn

A

90 mph

56
Q

Stall speed
9000 lbs
Flaps t/o
30 deg bank turn

A

67 mph

57
Q

Front fuel tank capacity and approx endurance

A

415 lbs

Approx 1 hr endurance

58
Q

When does the red low fuel light illuminate?

A 
Front fuel feeder tank
200 lbs (29 USG)
59
Q

Which tank do the start purge fuel and EPA dispense into?

A

Centre front tank

60
Q

Fuel may not transfer into the front tank if psi falls below what?

A 
23 psi
(You may need to turn on the other boost pump to transfer fuel in this case)
61
Q

Can you transfer fuel in a climb?

A

No. Fuel transfer should be in off position for t/o and climb

DHC-3T (2 decks)

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