Standard Specification for Design and Performance Requirements for Powered Parachute Aircraft

This specification covers design and performance requirements for powered parachute aircraft. It also applies to powered parachute aircraft seeking civil aviation authority approval, in the form of flight certificates, flight permits, or other like documentation. Each of the performance requirements shall be met at the maximum takeoff weight and most critical center of gravity (CG) position. To the extent that CG adjustment devices may be adjusted for flight, these components will be evaluated in the least favorable recommended position as it affects either performance or structural strength. All performance requirements apply in and shall be corrected to International Civil Aviation Organization (ICAO) defined standard atmosphere in still air conditions at sea level. Speeds shall be given in indicated (IAS) and calibrated (CAS) airspeeds in miles per hour (MPH). The wing performance, climb performance, controllability and maneuverability, and reference parameters shall be carefully determined and evaluated. Stability requirements of the aircraft such as longitudinal stability, lateral stability, and directional stability shall be discussed as well. In terms of structural requirements, the load and proof of structure of the aircraft shall be considered.