J & J Ultralights was an American aircraft manufacturer that was based at Wings ’N Sunset Airport in Live Oak, Florida.
The J & J Ultralights Seawing is an American amphibious ultralight trike that was designed and produced by J & J Ultralights of Live Oak, Florida.
Leading Edge Air Foils LLC (formerly Leading Edge Air Foils, Inc.), usually called LEAF, is an American aircraft parts supplier based in Lyons, Wisconsin.
The LEAF Trike is an American ultralight trike that was designed and produced by Leading Edge Air Foils in the 1980s.
This is a list of aircraft in alphabetical order by manufacturer covering names beginning with 'J'.
This is a list of aircraft in alphabetical order beginning with 'La' through 'Lh'.
The Rotax 447 is a, inline 2-cylinder, two-stroke aircraft engine, built by BRP-Rotax GmbH & Co. KG of Austria for use in ultralight aircraft.