Is your glider (or the club glider you are flying) fit for flight? This safety briefing includes vitally important information.
Please note that positive checks are essential for gliders that are not equipped with self-connecting controls. A recent accident investigation has identified that an unapproved modification to a glider with self-connecting controls resulted in the glider getting airborne with a disconnected elevator. A positive control check would almost certainly have identified the problem before flight. This safety briefing will be slightly revised as a result to recommend positive control checks on gliders with self-connecting controls.