Aircraft propeller speed reduction gearbox

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This is a prop speed reduction gearbox I designed and built for an LS1 V8 engine. I needed to reduce the nose weight to move the aircraft's CG back. I was also motivated to reduce the overall powerplant weight, to get it under the existing certified 6 cylinder opposed engines. I chose to use carbon fiber as the structural housing material to do this. Typical similar gearboxes weigh 80 to 120 lbs, this one is 36 lbs, with four gears, full ball and taper roller bearing design, pressure fed oiling and dry sumped to reduce drag and oil heating.

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  • ABOUT THE ENTRANT

  • Name:
    David Algie
  • Type of entry:
    individual
  • Profession:
    Engineer/Designer
  • Number of times previously entering contest:
    never
  • David's favorite design and analysis tools:
    Autocad. Solidworks
  • For managing CAD data David's company uses:
    None
  • David's hobbies and activities:
    Aircraft, race cars
  • David belongs to these online communities:
    Yahoo groups Algiecompositeaircraft
  • David is inspired by:
    Love to find better solutions to improve upon vehicle and mechanical performance, through modern materials and design.
  • Hardware used for this entry:
    Autoclave, CNC lathe, misc.
    Software used for this entry:
    Autocad
  • Patent status:
    none