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Pilot > General POH/CH1 > Flashcards

General POH/CH1 Flashcards

0
Q

What model engine do we have?

A

Lycoming O-360-J2A

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1
Q

Classification of rotary system?

A

1) rigid
2) semi rigid
3) fully articulated

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2
Q

How many horse power does the engine have?

A

145BHP

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3
Q

Articulation of main rotor system in R22?

A

Rigid in plane, free to teeter and cone

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4
Q

Number of blades?

A

Two ( a semi rigid rotor system posses 2 main rotor blades)

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5
Q

Diameter of the main rotor

A

25 feet 2 inches

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6
Q

Blade chord

A

7.2 inches (constant)

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7
Q

Blade twist

A

-8°

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8
Q

Tip speed @ 100%RPM?

A

672 FPS

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9
Q

Articulation of the tail rotor?

A

Rigid inplane, free to teether

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10
Q

Number of blades

A

2

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11
Q

Blade chord of the tail rotor?

A

4 inches

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12
Q

Blade twist

A

0°

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13
Q

Precone angle

A

1° 11 minutes

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14
Q

Tip speed of the tail rotor @ 100 RPM

A

599 FPS

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15
Q

Drive system- engine to upper sheave

A

Two double eve belts with .8536:1 speed reducing ratio

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16
Q

Upper sheave

A

Spag type overrunning clutch

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17
Q

Drive line to main rotor

A

Spiral bevel gears with 11:47 speed reducing ratio

18
Q

Drive line to tail rotor

A

Spiral-bevel gears with 3:2 speed increasing ratio

19
Q

What is the power plant of R22

A

Model: Lycoming O-360-J2A

Type: four cylinder, horizontally opposed, direct drive, air cooled, carbureted, normally aspirated.

Displacement: 361.0cubic inches

Normal rating: 145BHP (derated) @2700 RPM(R22 Beta II)

Approved fuel grade: 100/130 grade aviation fuel
Total fuel tank capacity 28-30.7 gal useable fuel 26.3-29.7 gal

20
Q

KIAS

A

Knots indicated airspeed is speed shown on the airspeed indicator.

21
Q

KCAS

A

Knots calibrated airspeed, is speed shown on the airspeed indicator corrected for instrument and position error.

22
Q

KTAS

A

Knots true airspeed, is airspeed relative to ur disturbed air. It is KCAS corrected for pressure altitude and temperature.

23
Q

Vne

A

Never exceed airspeed

24
Q

Vy

A

Speed for best rate of climb

25
Q

MSL altitude

A

Altitude above sea level, in feet, indicated by the altimeter (corrected for position and instrument error) when the barometric sub scale is set to the atmospheric pressure existing at sea level.

26
Q

Pressure altitude

A

Altitude in feet indicated by the altimeter(corrected for position and instrument error) when the barometric sub scale is set 29.92 inches of mercury(1013.2 mb)

27
Q

Density altitude

A

Altitude in feet, in ISA conditions at which the air would have the same density(it is pressure altitude corrected for OAT).

28
Q

ISA

A

International standard atmosphere exist when pressure is 29.92 inches of mercury at sea level, temperature is 15°C at sea level, and temperature decreases 1.98°C per 1000ft of altitude

29
Q

BHP

A

Brake horsepower is actual output of the engine.

30
Q

MAP

A

Manifold pressure in absolute pressure, in inches of mercury, in the engine intake manifold.

31
Q

RPM

A

Revolution per minutiae or speed of engine or main rotor.(shown by tachometer as percentage of 2550 engine RPM or 510 main rotor RPM)

32
Q

MCP

A

Maximum continuous power

33
Q

TOP

A

Take off power(usually for a maximum of 5mins)

34
Q

Critical altitude

A

Altitude at which full throttle produces maximum allowable power(MCP or TOP)

35
Q

TOGW

A

Takeoff gross weight

36
Q

OAT

A

Outside air temperature

37
Q

CAT

A

Carburetor air temperature

38
Q

CHT

A

Cylinder head temperature

39
Q

GPH

A

Gallons per hour

40
Q

AGL

A

Above ground level

41
Q

IGE

A

In ground effect

42
Q

OGE

A

Out of ground effect

43
Q

ALT

A

Alternator

Pilot (4 decks)

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