Whirlwind 330 hints

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Revision as of 16:46, 8 October 2022 by Martin (talk | contribs) (→‎specs)
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features

  • carbon composite blades
  • nickel leading edges

order number

  • 330-3B-A/78G-78-S-R (before slash is hub model, after slash is blade model)
    • Hub
      • 330 = hub series
      • 3B = number of blades
      • A = SAE-2 1/2" flange
        B = SAE-2 7/16" flange
    • Blade
      • 78G = Blade Style
      • diameter
      • S = Standard operation (increase pressure to increase pitch, goes to flat pitch on oil pressure loss)
        C = Counter-Weight (feathers on oil pressure loss)
      • R = right hand turn (clockwise as seen from pilot)
        L = left hand turn

specs

  • Diameter: 78"
  • Weight: 55 lbs
  • Governor: Pressure to Increase Pitch, meaning engine will overspeed on oil pressure loss and prop will not feather
    (they also make a counter-weighted version which feathers on oil pressure lost - but it's 7 lb heavier and more expensive)
  • Governor Pressure: 300-330 psi
  • Max rpm: 2,700
  • Mounting bolt torque: 50 ft lb
  • TBO (teardown inspection): 500 hours or 5 years
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