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MD500E > Limitations > Flashcards

Limitations Flashcards

0
Q

Vne Doors Off, Auto, Fuel Below 35lbs

A

130kts

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1
Q

Vne Max

A

152kts

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2
Q

During autorotation, reduce speed by

A

22kts

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3
Q

Max gross weight

A

3000 lbs

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4
Q

Min gross weight

A

1538 lbs

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5
Q

Max cargo deck weight

A

1300 lbs, 115 lbs/sq ft

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6
Q

Stowage max weight

A

50 lbs

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7
Q

Rotor brake limit

A

Less than 205rpm

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8
Q

Min rotor rpm (power off)

A

410rpm (87% N2)

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10
Q

Max rotor rpm, power on

A

492rpm (103% N2)

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11
Q

Max rotor rpm, power off

A

523 rpm (109% N2)

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12
Q

Max torque (C20B)

A

87.2psi (red line); 5min T/O

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13
Q

Max continuous torque (C20B)

A
  1. 3psi (start of yellow band). TOT must be below 738C (blue dot).
  2. 3psi (blue dot) if TOT is above 738C
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14
Q

Transient torque (C20B)

A
  1. 3psi (red line) - 93.0psi : 15sec

93. 1 - 97.6psi : 3sec

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15
Q

Max TOT (C20B)

A

810C (red line); 5min T/O

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16
Q

Max TOT to initiate start-up

A

150C

17
Q

Max continuous TOT (C20B)

A

755C (start of yellow band) if torque is below 74.3psi (blue dot)

738C (blue dot) if torque is above 74.3psi

18
Q

Transient TOT (during start/stop) (C20B)

A

810C (red line) to 926C : 10sec

927C peak : 1sec

19
Q

Transient TOT (power changes) (C20B)

A

810C (red line) - 843C (red dot) : 6sec

20
Q

N1 max continuous

A

105% (red line)

21
Q

N1 minimum

A

64% (start of green band)

22
Q

N1 transient

A

106% : 15sec

23
Q

N2 avoid range

A

75-88% (max cumulative time 1min)

24
Q

N2 max (C20B)

A

109% (rotor limit) if TOT below 680C

105% at 810C TOT

26
Q

N2 range (power on)

A

102-103%

28
Q

Max oil temp

A

107C (red line)

29
Q

Max oil pressure

A

130psi (red line)

*150psi in cold weather during start; maintain idle until normal

30
Q

Generator transient

A

85-150amps (yellow band) : 10min

*May exceed 150amps during battery recharge, on ground, for 2min

31
Q

Battery max temp

A

160C

32
Q

Required equipment

A
  • Engine Failure Warning System (audio and visual)
  • Low Rotor Warning System
  • OAT
  • Fuel Low caution light
33
Q

Approved doors-off configs

A
  • all
  • both rear
  • both front
  • any one door
34
Q

Max operating altitude

A

16,000DA

35
Q

Max ambient temp

A

54C (130F)

36
Q

Starter

A
  • 1min on, 1min off

* 1min on, 23min off

37
Q

Min oil pressure (C20B)

A
  • 50psi
  • 90psi (79% N1)
  • 115psi (94% N1)
38
Q

Generator normal range

A

0-85amps (green band)

MD500E (4 decks)

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