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FLIGHT TESTING NEW GLIDER DESIGNS - ALL NEW GLIDER TYPES

Includes local designs, major modifications and first of type amateur-built gliders which have not previously been flight tested and approved. This Airworthiness Note applies to the flight testing of new design, first of type and amateur-built gliders, as well as major modifications to existing gliders. (Information relating to flight testing motor gliders and self-launching sailplanes will be the subject of another AN). Airworthiness procedures for Amateur-built sailplanes are provided in the MOSP Part 3. These procedures cover all classes of amateur-builts, including local designs, first of type and subsequently built gliders from a kit or plans. Major modifications to a glider may require flight testing to establish that the modified aircraft still meets the appropriate standards. Major modifications usually involve external changes to the shape of the glider, such as extensions to the span, or fitting winglets, or alterations to the flight envelope. In such cases this AN may be used as a guide, and any non-appropriate parts ignored.