1275. Purpose of weight and performance requirements.

The purpose of the weight and performance requirements is to ensure that the performance of the aircraft is adequate for safety at all stages of the intended flight, taking into account the factors, such as temperature, altitude and weather conditions, which affect the performance of the aircraft. The requirements vary in detail according to whether the aircraft has no performance group classification in its certificate of airworthiness, has a Group A classification, or has a Group B, C, D, E, F, X or Z classification