R22 Limitations Flashcards

1
Q

Oil Temperature Green Range

A

75 to 245 degrees F

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2
Q

Oil Temperature Red Line

A

245 degrees F

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3
Q

Cylinder Head Temperature

Green Range

A

200 to 500 degrees F

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4
Q

Cylinder Head Temperature

Red Line

A

500 degrees F

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5
Q

Manifold Pressure

Yellow Arc

A

19.6 to 24.1

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6
Q

Manifold Pressure

Red Line

A

24.1

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7
Q

Powerplant

A

O-360-J2A

145 BHP (Derated) @ 2700 RPM

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8
Q

Rotor Speeds

Power On

A

Maximum 104% (530 RPM)

Minimum 101% (515 RPM)

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9
Q

Rotor Speed

Power off

A

Maximum 110% (561 RPM)

Minimum 90% (459 RPM)

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10
Q

Oil Pressure

Minimum Idle

A

25 psi

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11
Q

Oil Pressure

Minimum during flight

A

55 psi

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12
Q

Oil Pressure

Maximum during flight

A

95 psi

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13
Q

Oil Pressure

Maximum during start/warm up

A

115 psi

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14
Q

Oil Quantity (Minimum)

A

4 quarts

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15
Q

Engine Speed

Maximum Continuous

A

104% (2652 RPM)

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16
Q

Engine Speed

Maximum Transient

A

106% (2700 RPM)

17
Q

Main Rotor Diameter

A

25 feet 2 inches

18
Q

Main Rotor Blade Chord

A

7.2” inboard
7.7” outboard

19
Q

Main Rotor Blade Twist

A

-8 degrees

20
Q

Main Rotor Tip Speed (104%)

A

698 fps

21
Q

Tail Rotor Tip Speed (104%)

A

622 fps

22
Q

Tail Rotor Diameter

A

42 inches (3.5 feet)

23
Q

Tail Rotor Blade Chord

A

4 inches

24
Q

Tail Rotor Blade Twist

A

0 degrees

25
Q

Tail Rotor Precone Angle

A

1 degree 11 minutes

26
Q

Temperatures for Carb Ice Formation

A

Carburetor ice can form in a wide range of atmospheric conditions, but is most likely to form when OAT is between -4°C and 30°C (25°F and 86°F) AND the difference between OAT and dew point is less than 15C° (27F°)

27
Q

Total Useable Fuel

A

26.3 gal

28
Q

Main Tank Useable Fuel

A

16.9 gal

29
Q

Aux Tank Useable Fuel

A

9.4 gal