During the late 1970s and early 1980s, many people sought to be able to fly affordably. As a result, many aviation authorities set up definitions of lightweight, slow-flying aeroplanes that could be subject to minimum regulation. The resulting aeroplanes are commonly called "ultralight" or "microlight", although the weight and speed limits are rarely the same between any two countries.
There is also an allowance of another 10% on Maximum Take Off Weight for seaplanes and amphibians, and some countries (such as Germany and France) also allow another 5% for installation of a ballistic parachute.
The safety regulations used to approve microlights vary between countries, the most strict being the United Kingdom, Italy and Germany, while they are almost non-existent in France and the United States. The disparity between regulations is a major barrier to international trade and overflight, as is the fact that these regulations are invariably sub-ICAO, which means that they are not internationally recognised.
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Aero Propulsion Technologies - Offering Rotax Aircraft Engine sales, maintenance, overhaul and repair. Related parts and accessories for recreational aviation. Based in Saint-Lazare, Quebec, Canada. (In English and French)
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Leading Edge Air Foils - Dealer of ultralight and experimental aircraft parts and supplies including flight and engine instruments. Based in Lyons, Wisconsin USA.
Pacific Northwest Aero - Offering vortex generators for experimental/homebuilt aircraft. Based in Bend, Oregon, United States.
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Ship It AOG - Searchable database of aircraft parts and ground support equipment. Specialize in Challenger parts equipment. Based in Addison, Texas.
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Sirius Aviation - A provider of spruce, wood kits, and finished subassemblies for homebuilt and plans-built sports planes. Based in Mesquite, Texas USA.
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Sky's The Limit - Offering a disc brake system to manufacturers and owners of ultralight powered parachutes. Located in Willows, California USA.
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UL Parts - Offering ultralight, homebuilt engines, parts, and accessories via an online store. Based in Vernon, BC Canada.
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