Home›Aerospace Vehicles›Engine Class›PistonBrowse ByPistonPistonSourcesComments (0)Reader Challenges (0)PistonFilter Results3 entriesVehicle TypeAllEarly Helicopters (1)Single-Engine Piston Light Aircraft (2)ManufacturerAllCirrus Aircraft (1)Mooney International Corporation (1)Sikorsky Aircraft (1)YearAll1942 (1)1953 (1)1995 (1)Show ResultsBrowseCompareSelect all 3Cirrus SR20PistonMooney M20PistonSikorsky R-4PistonSourcesWikipedia: Aerospacetier 2WikipediaLead paragraphQuote, Lead paragraphrefers to the technology and industry involved with the atmosphere and outer space collectivelyView the SourceComments (0)No comments yet. Be the first to share a thought.Sign in to join the discussion.Reader Challenges (0)No disputes yet. Spotted an error or a better source? Open the first one.Sign in to dispute this or suggest a correction.