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Flight Theory > B206 B2 > Flashcards

B206 B2 Flashcards

1
Q

Max take off weight

  • Internal
  • External
A
  • 1451.5kg (3200lb)

- 1519.5kg (3350lb)

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2
Q

Take off power range

A

85%-100% Torque

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3
Q

Take off power Vne

A

80 Kt

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4
Q

Vne Speed

Below 3000lb
Above 3000lb

A

Below 3000lb = 130kts (3000ft density)

Above 3000lb = 122kts(3000ft density)

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5
Q

Altitude Limitations

Below 3000lb
Above 3000lb

A

below 3000lb=20,000ft (pressure)

above 3000lb = 13,500ft

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6
Q

Engine Model

A

RR 250-C20

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7
Q

Fuel Pressure Min & Max

A

8 PSI

50 pSI

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8
Q

Torque Limits

A

Take off 100%-5mins

Transient 110%-5 second

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9
Q 
TOT limits
Take off
In flight Transient
Max Continuous
Start and shutdown
A
  • 793 (5 min)
  • 737(MCP)
  • 793-843 (6 seconds)
  • 793-927 (10 seconds)
  • 927+ (1 sec)
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10
Q

Max speed for Autorotation

A

100KIAS

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11
Q

Min front seat weight

A

150lb (68kg)

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12
Q

During cold operations what should the engine idle speed be set to N1 until oil temp reaches min 0

A

60-64%

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13
Q

Engage pitot heat in visable moisture and temp below…..

A

4.4 C

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14
Q

Max pressure alt

A

20,000ft

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15
Q

Warning lights -Fuel pump

A

Descend to below 6000ft

Land as soon as practical

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16
Q

Warning lights - Fuel Filter

A

Land as soon as practical

-Clean before next flight

17
Q

Common causes of compresser surge (4)

A
  • Rapid increase in fuel flow when RPM increases
  • low engine RPM
  • Air going into the engine formt he wrong direction (crosswind)
  • contaminated or damaged compressor blades
18
Q

Symptoms of compressor surge (6)

A
  • Loss of thrust
  • odd noises
  • Vibrations
  • RPM fluctuations
  • Increased TOT
  • Burning gasses out of various orifices
19
Q

In the Allison 250 engine where is the torque measured from?

A

-At the engine reduciton gear intermediate pinion

20
Q

Best ROC speed

A

47kt

21
Q

RRPM Limitations

A

95-100% below 8000ft

-105% Transient for 15s

22
Q

Gas Producer Limitations

A
  • 104% max

- 105% transient 15seconds

23
Q

Starter Limitations

  • on
  • off
A
  • 40s on
  • 60s off
  • 40s on
  • 60s off
  • 40s ON
  • 30 mins off
24
Q

Engine oil Temp Limits

A

Max-107 Degrees

25
Q

Max and Min N2 Speed during Autorotation

A

Min -90%

Max-107%

26
Q

Temp limitations of using A-1 Fuel

A

limited to above -18 degrees ambient temperature

27
Q

Approved Oils

A

Turbine oil MIL-7808
Turbine Oil Mil-L-23699

Or
Turbine oil Mil-L-23699
DOD-L-85734
when above -40 degrees ambient

28
Q

VNE speed with front door/s off?

A

69kt

Flight Theory (8 decks)

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