Ans : Gliding
1.Open Class - places no restrictions except a limit of 850 kg to the maximum all-up mass, may be one- or two-seater.
2.Standard Class - restricted to a maximum wing-span of 15 meters and fixed wing sections (flaps or other lift-enhancing devices not allowed), maximum all-up mass 525 kg.
3.15 meters Class, as Standard Class with lift-enhancing devices allowed, maximum all-up mass 525 kg.
