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USCG MH-65D ZDB > MH 65-D Limitations > Flashcards

MH 65-D Limitations Flashcards

Chapter 5

0
Q

A CHECK TRQ light indicates:

A

7.5% torque differential between engines

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1
Q

Minimum Crew

A

one pilot (right seat), one crew member (cabin)

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2
Q

What should you Do with VEH PARAM OVER LIMIT/FUEL PARAM OVER LIMIT displayed on the VEMD?

A

message zone of FLI; scroll to the appropriate VEMD page to determine limit exceedance

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3
Q

Conditions to cause Aural Warning “Gong”

A

TC TEEN

  1. Takeoff - Accelerate to IAS >= 75k in TOP range.
  2. Cruise Flight - IAS >=75k for 5 seconds in TOP range.
  3. Torque 1+2>102.5%
  4. Excessive load factor
  5. Excessive fore or aft cyclic (on the ground).
  6. N1 exceeds the MTOP N1 + 0.4%, i.e., 102.3%
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4
Q

Nr rating as function of PA

A

355 RPM from 0-1650’ PA
Increases 1 RPM per 820 ft PA from 1650-5740’ PA
Max Nr 360 RPM

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5
Q

Airspeed/AOB limits with NR switch to HI

A

135 KIAS, 40 degrees AOB

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6
Q

Rotor Brake RPM Limit

A

170 RPM

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7
Q

Minimum Emergency Transient Nr

A

295 RPM

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8
Q

Minimum Stabilized Nr

A

320 RPM

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9
Q

Minimum Operating Range Nr

A

320-345 RPM

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10
Q

Nr Continuous Operating Range

A

345-360 RPM

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11
Q

Restricted Power-Off Nr Operating Range

A

360-365 RPM

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12
Q

Nr Maximum Power-Off Operating Range

A

360-395 RPM

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13
Q

Maximum Nr Power-Off

A

395 RPM

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14
Q

Maximum Nr (Power On)

A

420 RPM

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15
Q

Low Nr Horn RPM

A

<= 345 RPM

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16
Q

High Nr Horn RPM

A

> =380 RPM

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17
Q

Max DA for takeoffs and landings

A

10,000 feet

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18
Q

Max DA forward flight

A

18,000 feet

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19
Q

FADEC torque stop % (AEO)

A

11.0 (110%)

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20
Q

FADEC torque stop when RPM <335 RPM (AEO)

A

11.8

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21
Q

FADEC torque stop when RPM <317 RPM (AEO)

A

12.5

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22
Q

Transient Torque limit

A

10.4 for 5 seconds (104%)

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23
Q

FLI Torque Limitations

A

Max Continuous: 8.8
Max Takeoff: 10.0
Transient 5 sec: 10.4

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24
Q

FLI N1/TOT Limitations

A

Max Continuous: 8.8
Max Takeoff 5 min: 10.0
HIP/SARM 30 min: 10.0
Transient 5 sec: 10.7

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25
Q

TOT Start Limits

A

750

up to 840 for 10 seconds (FADEC turns engine off)

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26
Q

When will the FADED arm OEI 30-second rating on both engines?

A

> =6% difference N1 between 2 engines

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27
Q

HIP/SARM Power

A

AEO ops above Max Continuous Power (8.8) beyond 5 minutes, but not more than MTOP (10.0) for up to 30 minutes
**N1 and/or TOT limiting factor below 80 KIAS

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28
Q

Training Mode Switch Limits

A

Prior to placing back to NORM:
Nr stable 355 RPM
FLI at or below 8.0

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29
Q

FADEC overspeed safety feature

A

shuts down engine 429RPM +- 4 RPM (122.5% N2)

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30
Q

Nr switch SHALL be in HI position during:

A

hover flight greater than or equal to 10 feet AGL

all lateral flight

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31
Q

Do not extend use of NR HI Switch above what airspeed

A

best rate of climb airspeed, Vy

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32
Q

OEI Markings: Continous, 2-min, 30 sec

A

Continuous: 12.4 (66.3% TRQ)
2-min: 13.2 (75.5% TRQ)
30-sec: 13.8 (77.7% TRQ)

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33
Q

N2 Minimum Transient Speed

A

238 RPM

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34
Q

N2 Continuous Operating Range

A

347-360 RPM

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35
Q

Starter Engagement Limitations

A

Limit 5 attempts
60 seconds of cooling between attempts
30 minutes after 5th attempt

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36
Q

Starter Cranking Limitations

A

20 seconds max duration
3 cranking periods
5 minutes between cranking periods
30 minutes after third cranking period

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37
Q

Oil Temp Start Limits

A

0 degrees C before advancing FADEC past Idle
max 128 psi on start
check for minimum of 22 psi on start

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38
Q

Nominal Px HYD1 and HYD2 circuits

A

870 psi

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39
Q

Max Px to operate flight control servos

A

1060 psi

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40
Q

Minimum engine starting pressure (fuel):

Purge phase preceeding starting phase

A

5.8 psi

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41
Q

Minimum engine starting pressure (fuel):

Starting Phase

A

3.6 psi

42
Q

Minimum engine starting pressure (fuel):

Operating Phase

A

3.6 psi

43
Q

Fuel LOW light

A

~10 min of flight time remains at MCP

3% left, then takes from feed takes

44
Q

DC Generator loads

A

within 10% of each other

45
Q

Min Battery Start Voltage

A

17 VDC

46
Q

When does 100% current limitation not apply?

A

During engine start

First minute of battery charging after engine start

47
Q

Max ramp weight (static, towed, ground taxied)

A

9590 lbs

48
Q

Max gross weight for flight ops (running takeoffs)

A

9480 lbs

49
Q

Cabin Area Load Limit

A

Do not exceed 125 pounds per square foot

50
Q

“Hover Flight” is defined as:

A

Any zero or near zero ground speed ops in winds of 35 knots and below (10.0-10.4)

51
Q

“Transition Flight” is defined as:

A

Flight from zero to 80 KIAS (10.0 on FLI; spikes limit to 10.4 for less than 5 sec)

52
Q

“Cruise Flight” is defined as:

A

Flight above 80 KIAS (8.8 on FLI)

53
Q

Max FWD Airspeed at what gross weight

A

175 KIAS; GW not exceeding 6614 lbs

54
Q

VNE is predicated upon what loading condition?

A

1 g, straight and level flight

55
Q

Absolute VNE Power-On airspeed

A

175 KIAS

56
Q

Absolute VNE Power-Off airspeed

A

135 KIAS

57
Q

Max Cabin Sliding Door Speed: Door Removed

A

120 KIAS

58
Q

Max Cabin Sliding Door Speed: Door locked in open position

A

100 KIAS

59
Q

Max Cabin Sliding Door Speed: Door movement

A

80 KIAS

60
Q

Max Rescue Hatch Speed: Hatch locked in open position

A

80 KIAS, 35 kt sideward

61
Q

Max Rescue Hatch Speed: Hatch movement

A

60 KIAS, 30 kt sideward

62
Q

Max cargo hook load speed

A

90 KIAS

63
Q

Max airspeed with float bags armed or inflated

A

90 KIAS

64
Q

Max airspeed with skis installed

A

120 KIAS

65
Q

Max touchdown speed

A

60 KGS

66
Q

Max touchdown speed with skis on snow

A

35 KGS

67
Q

Max Brake Speed: Gross weight at or less than 8900 lbs

A

38 KGS

68
Q

Max Brake Speed: Gross weight above 8900 lbs

A

30 KGS

69
Q

Max Airspeed with NR HI

A

135 KIAS

70
Q

Max Sideward Flight

A

35 kt

71
Q

Max Landing Gear Extension Speed

A

135 KIAS

72
Q

Rotor Start Wind Limits

A

55 kts within 20 degrees of aircraft heading; 35 kts from all other directions

73
Q

Max touchdown sink rate

A

at GW of 8900 lb: 600 ft/min

74
Q

Max speed for touchdown

A

60 knots ground speed

75
Q

Ship landings prohibited above what GW?

A

8900 lbs

76
Q

Slope limitation for landing and stopping the rotor

A

10 degrees

77
Q

Cooling period between rotor brake applications

A

5 minutes

10 minutes after 3 consecutive attempts

78
Q

Maximum braking time

A

13 seconds

79
Q

Max airspeed with emergency floats inflated or in ARM

A

90 KIAS

80
Q

Max load for rescue hoist

A

600 lbs

81
Q

Heavy Load Hoist

A

300-600 lb

30 sec rest between delivery and recovery

82
Q

Normal Load Hoist

A

300 lb or less

10 sec rest between delivery and recovery

83
Q

No Load

A

no rest requirement

84
Q

Max cargo hook load weight

A

2000 lbs

85
Q

Max airspeed with external load attached

A

90 KIAS

86
Q

Fuel Jettison Airspeed/ROC/ROD limits

A

40-120 KIAS; any rate of climb and descent up to 1500 frm

87
Q

Landing gear extended if fuel jettisoning below airspeed:

A

60 KIAS

88
Q

Time limit after jettison is terminated before hovering or landing

A

at least 1 minute

89
Q

When is fuel jettisoning prohibited?

A

During hover or other in-ground effect maneuvers

90
Q

FDS: IAS

A

> 40 KIAS

91
Q

FDS: VS

A

> 70 KIAS, 0-3000 fpm

92
Q

FDS: ALT

A

> 70 KIAS

93
Q

FDS: IAS-VS

A

> 40 KIAS,
0-3000 fpm
Below 7.0 on the FLI (80% of 8.8)

94
Q

FDS: IAS-ALT

A

> 40 KIAS

Below 7.0 on the FLI (80% of 8.8)

95
Q

FDS: HDG SEL

A

> 40 KIAS

96
Q

FDS: NAV

A

> 40 KIAS

97
Q

FDS: APPR

A

> 40 KIAS, 12 deg GP

98
Q

FDS: T-HOV

A

Below 2500 RADALT

99
Q

FDS: HOV AUG

A

Visual hover maneuver

100
Q

FDS: GA

A

> 25 feet AGL

101
Q

IAS-VS and IAS-ALT mode should not be used above what power?

A

80% MCP; limit above 80 KIAS in cruise flight is 80% of 8.8 FLI or approx. 7.0 on FLI

102
Q

Prohibited Maneuvers

A
  1. Aerobatic Flight
  2. Angles of bank
    a. Greater than 60 degrees less than 110 KIAS
    b. Greater than 45 degrees at or above 110 KIAS
  3. Abrupt cyclic movement above 110 KIAS
  4. Takeoff and landing on slopes steeper than 10 degrees
  5. Above 8,500 lb gross weight, practice single engine maneuvers
  6. Above 8,900 lb gross weight, the following maneuvers are prohibited:
    a. Shipboard landings
    b. All rotary wing air intercept maneuvers and AUF training maneuvers
  7. Above 9,200 lb gross weight, the following maneuvers are prohibited:
    a. Prolonged hover operations (>1 min)
    b. Operational AUF maneuvers

USCG MH-65D ZDB (18 decks)

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