R22 Beta II

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Author:
egomez
ID:
259201
Filename:
R22 Beta II
Updated:
2014-01-30 00:38:33
Tags:
Dimensions
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Description:
helicopter dimensions
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  1. Overall length of the R22 Beta II
    345 In.
  2. Main Rotor Diameter.
    25.2 ft.
  3. Main Rotor Blade Chord
    7.2 in. (constant)
  4. Main Rotor Blade Tip Speed, at 100% rpm.
    672 FPS
  5. Tail Rotor Diameter?
    3.6 ft.
  6. Tail Rotor Blade Chord?
    4 in. (constant)
  7. Tail Rotor Tip Speed @100% RPM
    599 FPS
  8. Drive Line to Main Rotor Gear Ratio?
    11:47  Spiral-bevel gear speed reducing ratio
  9. Drive line to Tail Rotor Gear Ratio?
    3:2  Spiral-bevel gears speed increasing ratio.
  10. Poweplant?
    Lycoming O-320 or O-360
  11. 5 Min takeoff rating for Beta and Beta II ONLY?
    131 BHP at 2652 RPM
  12. Cooling System?
    Direct Drive Squirrel-cage Blower.
  13. Main Rotor Blade Twist?
    -8 degrees
  14. Tail Rotor Blade Twist?
    0 degrees
  15. Pressure Altitude STANDARD ?
    29.92 in of Mercury
  16. KIAS
    Knots Indicated Air Speed is shown on the airspeed indicator
  17. KCAS
    Knots Calibrated Airspeed
  18. Vne
    Never-Exceed Airspeed
  19. Vy
    Speed for best rate of climb.
  20. ISA
    International Standard Atmosphere

    29.29
  21. BHP
    Brake Horsepower is actual horsepower of engine
  22. MAP
    Manifold Pressure
  23. MCP
    Maximum Continuous Power
  24. TOP
    Take Off Power
  25. TOGW
    Takeoff Gross Weight
  26. OAT
    Outside Air Temperature
  27. CAT
    Carburetor Air Temperature
  28. CHT
    Cylinder Head Temperature
  29. GPH
    Gallons per hour
  30. AGL
    Above Ground Level
  31. IGE
    In Ground Effect
  32. OGE
    Out of Ground Effect
  33. ALT
    Alternator
  34. Reference Datum
    A reference vertical plane from which horizontal distances are measured for balance purposes. 100 in  forward main rotor centerline for R22.
  35. CG
    Center of Gravity
  36. Rotor Speed Limits and actual RPM
     
    i.   Maximum    
    ii.  O-360         
    iii. O-320
    • i.   104%        530rpm
    • ii.  101%        515rpm
    • iii. 97%          495rpm
  37. Engine Max Speed
    2652 rpm (104%)
  38. Cylinder Head Max Temperature
    500°F (260°C)
  39. Oil Max Temperature
    245°F (118°C)
  40. Oil Pressure

    i.    Min during Idle
    ii.   Min during Flight
    iii.  Max during Flight
    iiii. Max during start and warm-up
    • i.    25 psi
    • ii.   55 psi
    • iii.  95 psi
    • iiii. 115 psi
  41. Oil quantity min for takeoff
    4 qt
  42. Maximum Gross Weight
    1370 lb (622kg)
  43. Minimum Gross Weight
    920 lbs   (417kg)
  44. Maximum per seat - including baggage compartment
    240 lbs   (109kg)
  45. Fuel Grade for O-320, O-360
    100/130 aviation fuel
  46. Total Fuel Capacity R22 - w/bladder

    main
    aux
    combined
    • 16.9  (64L)
    • 9.4    (36L)
    • 26.3  (100)
  47. Total Fuel Capacity for R22- w/o bladder

    main
    aux
    combined
    • 19.2 (73L)
    • 10.5 (40L)
    • 29.7 (112L)

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