MH 65-D Limitations Flashcards Preview

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

Flashcards in MH 65-D Limitations Deck (103):
0

Minimum Crew

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

1

A CHECK TRQ light indicates:

7.5% torque differential between engines

2

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

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

3

Conditions to cause Aural Warning "Gong"

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%

4

Nr rating as function of PA

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

5

Airspeed/AOB limits with NR switch to HI

135 KIAS, 40 degrees AOB

6

Rotor Brake RPM Limit

170 RPM

7

Minimum Emergency Transient Nr

295 RPM

8

Minimum Stabilized Nr

320 RPM

9

Minimum Operating Range Nr

320-345 RPM

10

Nr Continuous Operating Range

345-360 RPM

11

Restricted Power-Off Nr Operating Range

360-365 RPM

12

Nr Maximum Power-Off Operating Range

360-395 RPM

13

Maximum Nr Power-Off

395 RPM

14

Maximum Nr (Power On)

420 RPM

15

Low Nr Horn RPM

<= 345 RPM

16

High Nr Horn RPM

>=380 RPM

17

Max DA for takeoffs and landings

10,000 feet

18

Max DA forward flight

18,000 feet

19

FADEC torque stop % (AEO)

11.0 (110%)

20

FADEC torque stop when RPM <335 RPM (AEO)

11.8

21

FADEC torque stop when RPM <317 RPM (AEO)

12.5

22

Transient Torque limit

10.4 for 5 seconds (104%)

23

FLI Torque Limitations

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

24

FLI N1/TOT Limitations

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

25

TOT Start Limits

750
up to 840 for 10 seconds (FADEC turns engine off)

26

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

>=6% difference N1 between 2 engines

27

HIP/SARM Power

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

28

Training Mode Switch Limits

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

29

FADEC overspeed safety feature

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

30

Nr switch SHALL be in HI position during:

hover flight greater than or equal to 10 feet AGL
all lateral flight

31

Do not extend use of NR HI Switch above what airspeed

best rate of climb airspeed, Vy

32

OEI Markings: Continous, 2-min, 30 sec

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

33

N2 Minimum Transient Speed

238 RPM

34

N2 Continuous Operating Range

347-360 RPM

35

Starter Engagement Limitations

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

36

Starter Cranking Limitations

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

37

Oil Temp Start Limits

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

38

Nominal Px HYD1 and HYD2 circuits

870 psi

39

Max Px to operate flight control servos

1060 psi

40

Minimum engine starting pressure (fuel):
Purge phase preceeding starting phase

5.8 psi

41

Minimum engine starting pressure (fuel):
Starting Phase

3.6 psi

42

Minimum engine starting pressure (fuel):
Operating Phase

3.6 psi

43

Fuel LOW light

~10 min of flight time remains at MCP
3% left, then takes from feed takes

44

DC Generator loads

within 10% of each other

45

Min Battery Start Voltage

17 VDC

46

When does 100% current limitation not apply?

During engine start
First minute of battery charging after engine start

47

Max ramp weight (static, towed, ground taxied)

9590 lbs

48

Max gross weight for flight ops (running takeoffs)

9480 lbs

49

Cabin Area Load Limit

Do not exceed 125 pounds per square foot

50

"Hover Flight" is defined as:

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

51

"Transition Flight" is defined as:

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

52

"Cruise Flight" is defined as:

Flight above 80 KIAS (8.8 on FLI)

53

Max FWD Airspeed at what gross weight

175 KIAS; GW not exceeding 6614 lbs

54

VNE is predicated upon what loading condition?

1 g, straight and level flight

55

Absolute VNE Power-On airspeed

175 KIAS

56

Absolute VNE Power-Off airspeed

135 KIAS

57

Max Cabin Sliding Door Speed: Door Removed

120 KIAS

58

Max Cabin Sliding Door Speed: Door locked in open position

100 KIAS

59

Max Cabin Sliding Door Speed: Door movement

80 KIAS

60

Max Rescue Hatch Speed: Hatch locked in open position

80 KIAS, 35 kt sideward

61

Max Rescue Hatch Speed: Hatch movement

60 KIAS, 30 kt sideward

62

Max cargo hook load speed

90 KIAS

63

Max airspeed with float bags armed or inflated

90 KIAS

64

Max airspeed with skis installed

120 KIAS

65

Max touchdown speed

60 KGS

66

Max touchdown speed with skis on snow

35 KGS

67

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

38 KGS

68

Max Brake Speed: Gross weight above 8900 lbs

30 KGS

69

Max Airspeed with NR HI

135 KIAS

70

Max Sideward Flight

35 kt

71

Max Landing Gear Extension Speed

135 KIAS

72

Rotor Start Wind Limits

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

73

Max touchdown sink rate

at GW of 8900 lb: 600 ft/min

74

Max speed for touchdown

60 knots ground speed

75

Ship landings prohibited above what GW?

8900 lbs

76

Slope limitation for landing and stopping the rotor

10 degrees

77

Cooling period between rotor brake applications

5 minutes
10 minutes after 3 consecutive attempts

78

Maximum braking time

13 seconds

79

Max airspeed with emergency floats inflated or in ARM

90 KIAS

80

Max load for rescue hoist

600 lbs

81

Heavy Load Hoist

300-600 lb
30 sec rest between delivery and recovery

82

Normal Load Hoist

300 lb or less
10 sec rest between delivery and recovery

83

No Load

no rest requirement

84

Max cargo hook load weight

2000 lbs

85

Max airspeed with external load attached

90 KIAS

86

Fuel Jettison Airspeed/ROC/ROD limits

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

87

Landing gear extended if fuel jettisoning below airspeed:

60 KIAS

88

Time limit after jettison is terminated before hovering or landing

at least 1 minute

89

When is fuel jettisoning prohibited?

During hover or other in-ground effect maneuvers

90

FDS: IAS

>40 KIAS

91

FDS: VS

>70 KIAS, 0-3000 fpm

92

FDS: ALT

>70 KIAS

93

FDS: IAS-VS

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

94

FDS: IAS-ALT

>40 KIAS
Below 7.0 on the FLI (80% of 8.8)

95

FDS: HDG SEL

>40 KIAS

96

FDS: NAV

>40 KIAS

97

FDS: APPR

>40 KIAS, 12 deg GP

98

FDS: T-HOV

Below 2500 RADALT

99

FDS: HOV AUG

Visual hover maneuver

100

FDS: GA

>25 feet AGL

101

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

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

102

Prohibited Maneuvers

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