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DHC-3T > Limitations > Flashcards

Limitations Flashcards

(61 cards)

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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
What is the min and max observed oil pressure?
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
What is the min and max oil temp with t/o power?
10-99 deg c
27
Min and max oil temp at idle
-40 to 99 deg c
28
Min and max oil temp in reverse
0 to 99 deg c
29
What type of oil?
BP2380 | Do not mix brands
30
Normal oil level?
Up to 4 quarts low | -0.5 quarts lower in zero pitch
31
Fuel types?
Jet-A, Jet-A1, JetB, AVGAS
32
AVGAS limitations?
AVGAS may burn for up to 150 hrs of an engines life
33
Fuel capacity?
Front 415 lbs Centre 693 lbs Rear 340 lbs
34
Min, max, and normal fuel boost pump pressure?
Min 5 psi Max 35 psi Normal 25 psi
35
How many fuel nozzles?
14 total | 10 primary, 4 secondary
36
Starter limitations
30 sec on, 1 min off 30 sec on, 1 min off 30 sec on, 1 hour off
37
Battery type?
2 X 24V, 31 Amp/hr
38
Starter Generator Voltage
28V
39
Overvoltage circuit breaker switch max volts
31 volts
40
Max flap travel
Landing flap 52 deg
41
Max capacity aft cargo compartment
650 lbs
42
Max cargo capacity per float hatch
250 lbs
43
Wingspan
58'1"
44
Length
45'10"
45
Vx | Best angle
83 mph (t/o flap)
46
Vy | Best rate
100 mph
47
Recommended climb speed
110 mph
48
Vmo
132 mph
49
Va
124 mph
50
Vfe
93 mph
51
Recommended glide speed | 9000 lbs
100 mph
52
Stall speed 9000 lbs Flaps up Wings level
77 mph
53
Stall speed 9000 lbs Flaps t/o Wings level
64 mph
54
Stall speeds 9000 lbs Flaps landing Wings level
60 mph
55
Stall speed 9000 lbs Flaps up 45 deg bank turn
90 mph
56
Stall speed 9000 lbs Flaps t/o 30 deg bank turn
67 mph
57
Front fuel tank capacity and approx endurance
415 lbs | Approx 1 hr endurance
58
When does the red low fuel light illuminate?
``` Front fuel feeder tank 200 lbs (29 USG) ```
59
Which tank do the start purge fuel and EPA dispense into?
Centre front tank
60
Fuel may not transfer into the front tank if psi falls below what?
``` 23 psi (You may need to turn on the other boost pump to transfer fuel in this case) ```
61
Can you transfer fuel in a climb?
No. Fuel transfer should be in off position for t/o and climb

DHC-3T (2 decks)

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