A catapult for launching an unmanned aircraft. The catapult comprises a first carriage, to which the aircraft (5) can be arranged. The catapult further comprises a launching cylinder (23) that is arranged to move the carriage (4) in the launch direction (B) by means of a pulling element, such as a rope, and also a pulley mechanism. The carriage can be moved in the return direction (C) by means of a returning device (31) and a return-side pulley mechanism (51).

 
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