ED Decision 2003/13/RM
(a) The Utility Category is limited to sailplanes intended for normal soaring flight. The following aerobatic manoeuvres may be permitted if demonstrated during type certification –
(1) spins;
(2) lazy eights, chandelles, stall turns and steep turns;
(3) positive loops.
(b) Sailplanes intended for aerobatic manoeuvres additional to those permitted in the Utility Category must be certificated in the Aerobatic Category. The permitted aerobatic manoeuvres must be established during type certification.
(c) Sailplanes may be certified in more than one category if the requirements of each requested category are met.
(d) Powered sailplanes may be used for aerotowing sailplanes if they comply with Appendix K.
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