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Columbia Helicopters > BV107-II RFM > Flashcards

BV107-II RFM Flashcards

Memorize and learn the BV-107 II rotorcraft flight manual contents

1
Q

Gas Generator (NG) Speed Limitations

A

Max transient: 103.6%- 105.3% for 15 seconds

2 1/2 minutes (OEI): 103.6%

Max TOP: 100.3%

MCP: 100.3%

Single engine 30 min rating: 100.3%

Normal range: 53% - 100.3%

Minimum speed: 53%

Oscillation: No greater than +/- 1% at steady
state

Idle: Approximately 56% +/- 3%

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2
Q

NF Speed Limitations

A

Overspeed limit range:
109.1% - 118.4% for 15 secs max

Max allowable Speed: 109.1%

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3
Q

Turbine Inlet Temperature Limits (T5)

A

Max transient during start:
949c for 2 seconds

2 1/2 min power:
758c (OEI)

MTOP and 30 min (OEI emergency power):
696c

MCP:
660c

Aural warning activates when T5 exceeds 707c +/- 3c

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4
Q

Engine oil temperature limits

A

Max temp:
121c

Min starting temp:

  • 40c type 2 oil (common)
  • 54c type 1 oil (uncommon)
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5
Q

Engine oil pressure Limitations

A

Max pressure: 60psi - 75psi

Normal pressure: 20psi - 60psi

Minimum at idle: 8psi - 25psi

Allowable pressure fluctuations in steady state conditions: +/- 3psi maximum

An oil relief valve in the filter will divert oil to the forward sump when pressure reaches
65 - 75psi to protect the engine from excessive oil pressures

No.1 & No.2 ENG OIL PRESS lights illuminate when pressure drops to 7 - 10psi

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6
Q

Engine starter and ignition system Limitations

A

Starter:
Continuous starter operation no more than 30 seconds.

No more than 3 starts in any 30 minute period

Ignition system:
(Other than with starter motor)

2 mins on - 3 mins off
2 mins on - 23 mins off
5 mins on - 55 mins off

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7
Q

Fuel Pressure Limitations

A

Max: 995psi
Precautionary: 795psi - 995psi
Normal: 210psi - 795psi
Minimum: 160psi

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8
Q

At what OAT must we use JP-4 fuel?

A

Minus 29 degrees Celsius or below limited to JP-4 only.

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9
Q

Transmission Torque Limitations (Multi Engine 100% RRPM)

A

MTOP: 76.5%

MCP: 70%

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10
Q

Transmission Torque Limitations

OEI 100% RRPM

A

10 second transient: 112%

2 1/2 min: 94%

30-min: 88%

MCP: 78.5%

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11
Q

Transmission Oil Temperature Limitations

A

Maximum – 110°C
Minimum – -12°C
Normal – -12°C to 100°C

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12
Q

Transmission Oil Pressure Limitations

A

Maximum – 85 PSIG
Minimum – 20 PSIG

Avoid rapid advancement of ECL during initial run-up to avoid XMSN oil pressures above 60 PSIG
(Can cause premature failure of XMSN seals)

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13
Q

What temperature are we not authorized to fly in visible moisture?

A

2 degrees Celsius in visible moisture (with inlet filters this is a hard limitation)

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14
Q

Density Altitude Limitations Transport Cat B

A

Takeoff - 12500 DA

Enroute - 13000 DA up to 19,000lbs
10000 DA above 19,000lbs - 20,000lbs

Landing - 12500’

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15
Q

Max OAT Limit

A

43.5 degrees

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16
Q

Max wind limits for rotor engagement

A

52kts and 15kt gust spread

Avoid winds from the 12 to 3 o’clock position

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17
Q

Power Off NR Limitations

A

Max: 113%
Normal up to 19k: 92-113%
Normal 19-20k: 100-113%
Transient minimum: 88%

18
Q

When must engine anti-ice be used?

A

When OAT is 4c or less

19
Q

Engine Limitations - Takeoff Power

A

SHP - 1400
Duration - 5 mins
NG - 100.3
T5 - 696c

20
Q

Engine Limitations - MCP

A

SHP - 1250
Duration - No Limit
NG - 100.3
T5 - 660c

21
Q

Engine Limitations - OEI (2 1/2 min)

A

SHP - 1500
Duration - 2 1/2 min
NG - 103.6
T5 - 758c

22
Q

Engine Limitations - OEI (30 min)

A

SHP - 1400
Duration - 30 min
NG - 100.3
T5 - 696c

23
Q

Max Gross Weight External Load

A

22,000lbs

24
Q

Is the H/V diagram a limitation?

A

Yes, we must comply with the H/V diagram unless you meet the weight requirements of (Figure 1-3: Maximum Gross Weight for No Avoid Region, One Engine Inoperative, Takeoff Power, Fiberglass Rotor Blades) (Improved cat-b supplement)

25
Q

Hydraulic Pressure Limitations

A

Max: 1750 PSI
Normal Range: 1050 - 1750 PSI (Normal 1500 PSI)
Minimum: 1050 PSI

26
Q

Hydraulic Accumulator Limitations

A

Max: 1750 PSI under HYD pressure

Gas Pre Charge: 500 PSI +/- 25 PSI

27
Q

Transmission Oil

A

Aeroshell 65
or
Oil complying with MIL-L -6082 specs

28
Q

Engine Oil

A

Exxon 2380
or
Oil complying with MIL-L-23699 specs

29
Q

Hydraulic Fluid

A

MIL-H-5606

30
Q

Power On NR Limitations

A

Maximum: 100% Nr

Maximum: 104% Nr
(at minimum collective pitch prior to taking off or landing to allow for transitory droop)

Normal Range: (Up to 19k lbs below 6k DA)
92% - 100% Nr

Normal Range: (Above 19k lbs below 6k DA)
97% - 100% Nr

Normal Range: (Above 6k DA)
100% Nr only

31
Q

General Limits

Acrobatic Maneuvers

A

No acrobatic maneuvers are approved.

32
Q

General Limits

Battery Temperature Limitations

A

Not applicable to CHI aircraft, lead acid 25.8 volt batteries are installed.

33
Q

General Limits

Floatation

A

Floatation provisions of the aircraft allow for power on or one engine
inoperative landings on water.

Amphibious operations are not approved.

34
Q

General Limits

Aircraft Fuel System (Boost Pumps)

A

Fuel boost pumps must be operative and ON for flight.

35
Q

General Limits

Aircraft Fuel System (Fuel Crossfeed)

A

Operation of the fuel crossfeed system is intended primarily for use in single-engine emergencies.

Except in emergency
situations, all crossfeed operations should be terminated when either main
fuel tank reaches 400 pounds of fuel remaining.

36
Q

General Limits

Aircraft Fuel System (AUX fuel system)

A

(1) The aux fuel shutoff valves and transfer pumps must be OFF and
CLOSED respectively for all takeoffs and landings.

(2) Auxiliary fuel shutoff valves and transfer pumps must be OFF and
CLOSED anytime the aux tank low pressure warning light is
illuminated or the aux tank is empty.

(3) The aux fuel transfer system will not be used anytime the aux fuel
vent overflow light indicates vent overflow.

(4) Aux fuel transfer may only be accomplished on the ground (land) or
during cruise.

37
Q

General Limits

Inlet Screens

A

Flight is prohibited with inlet screens installed when OAT is below 2c and moisture is visible

38
Q

General Limits

Icing

A

Flight into icing conditions is prohitbited

39
Q

General Limits

Pitot Tubes

A

Cat-A crosswind operations are prohibited unless crosswind pitot tubes are installed.

40
Q

General Limits

Thunderstorms

A

Flight into known thunderstorms or areas of moderate to severe turbulence is
prohibited.

41
Q

General Limits

Low-G Maneuvers

A

Do not perform negative G maneuvers.

Columbia Helicopters (14 decks)

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