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Homebuilt Aircraft & Kit Plane Forum

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  1. X

    do 4 stroke rotax engine valves rotate?

    Typical air cooled 4 stroke engines use Roto Coils
  2. X

    BUSDIG - A High-Efficiency Two-Stroke Engine Concept:
  3. X

    Avocet AV24
  4. X

    renewed interest

    Gday folks Getting back up to speed on the current scene out there, at a glance, looks like tonnns of solid info here to absorb cheers