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You are here: Home arrow Knowledge Base arrow Choppers arrow Sikorsky S-51 Manual
Sikorsky S-51 Manual E-mail
Written by Anton Dyason - IPMS SA Media Group   
Wednesday, 07 February 2007
 

SETTING AND RANGES OF MOVEMENT OF CONTROL SURFACES.

 

    Main rotor blades

 

    Collective pitch limits

31/2 +-  1/2 degrees to 13 +- ½  degrees

    Tail rotor blades

 

    Maximum pitch

+ 15 degrees

    Minimum pitch

- 5 degrees

 

 

UNDERCARRIAGE GEAR.

 

    Main undercarriage gear

 

    Type

Tripod

    Thread

12 ft

    Shock strut

 

    Type

Air-Oil

    Make and part number

Bendix 69909

    Oil required Specification No.

AN-0-366

    Wheels

 

    Trade name

Hayes

    Size

7.50 x 10

    Part number

G-3-73-M-1 or G-3-645-M- 1

    Tyres

 

    Trade name

Goodyear

    Type thread

4-ply9 low pressure

    Size

6.50 x 10

    Pressure

37 psi

    Brakes

 

    Type

9 x 11y2 expander tube

    Part number

G-2-122

    Oil required Specification No.

AN-0-366

NOSE GEAR

 

    Type

Swivel and lever suspension

    Shock strut

 

    Type

Air-Oil

    Oil required Specification No.

AN-0-366

    Wheel

 

    Trade name

Goodyear

    Size

6.00-6

    Part number

5 11500-M-1

    Tire

 

    Trade name

Goodyear

    Type thread

4-ply, all weather, grooved

    Size

6.00-6

    Pressure

45 psi

ENGINE.

 

    Number

1

    Make

Pratt and Whitney Wasp Junior

    Type

Air cooled, radial engine

    Model

R-985-AN-5

    Cylinders

9

FUEL

 

    Specification No.

AN- F-48 Grade 91/98

    Main Tanks (2)

50 gallons each

    Expansion space of each tank

1.74 gallons

    Auxiliary fuel tank (1)

(Helicopters, BuNos. 122508 to 122527 and 122709 to 122728)

    Capacity

58 gallons

    Jettisonable fuel tank (1)

(Helicopters BuNos. 1231 18 and subsequent)

    Capacity

83 gallons

Oil

 

    Down to 4°C (40°F) Specification No.

AN-0-8 Grade 1120

    21°C to -1°C (70°F to 30°F) Specification No.

AN-0-8 Grade 1 100

    Below -1°C (30°F) Specification No.

AN-0-8 Grade 1100 (with oil dilution)

    Tank (1)

8 gallons

    Expansion space

1 gallon

 


Last Updated ( Sunday, 25 February 2007 )
 
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