Division (b) The applicant shall make all flight tests that the CAA finds necessary:F1

to determine compliance with the applicable type-certification basis and environmental protection requirements; and

to determine whether there is reasonable assurance that the aircraft, its parts and appliances are reliable and function properly for aircraft to be certificated under this Annex I (Part 21), except for,

1. (i)

   sailplanes and powered sailplanes;

2. (ii)

   balloons and airships defined in ELA1 or ELA2;

3. (iii)

   aeroplanes of 2 722 kg or less maximum take-off mass (MTOM).