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This group is intended for the discussion of the technical issues involved in applying small industrial 4 stroke engines to power ultralight type aircraft. Engines like the 25 hp Kohler ...(more)

Sonex Aircraft Forum. Keep up with the latest news and events and discuss the sonex plans, kit, tools, along with building and flying experiences. Open to all Sonex Builders and Future ...(more)

This list is for the sharing of information related to the use of Geo and Suzuki auto engines in experimental aircraft and Ultralights. Commercial content is permitted provided it ...(more)

Come on in DOOR'S OPEN Marc's Plans Viewer (Plans Owners) http://www.conotech.com/bearhawk/plansview/ Budd's AviPro Bearhawk Kit http://www.bearhawkaircraft.com Kent White's ...(more)

This group is dedicated to the aquisition, conversion and flying of Military Surplus engines on homebuilt aircraft of all kinds.

This group is dedicated to the building and flying of RANS aircraft. All RANS owners, (past, present or future) or those interested in experimental aircraft, are encouraged to ...(more)

Wondering What Light Sport Can Do For You? Join our group and discuss the new (LSA) Light-Sport Aircraft and Sport Pilot license. Please ask questions. Talk about anything related to ...(more)

Volksplane discussion list

Welcome Lycoming Engine Fans! Here you can post questions and answers concerning Lycoming engines.    VERY, VERY IMPORTANT :   All information posted through this avenue should ...(more)