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Le Prieur rocket
''Le Prieur'' rockets (French ''Fusées Le Prieur'') were a type of incendiary air-to-air rockets used in World War I against observation balloons and airships.〔(【引用サイトリンク】title=First World War.com - "Le Prieur Rockets" )〕 They were invented by the French Lieutenant Yves Le Prieur and were first used in the Battle of Verdun on 1916. Due to great inaccuracy their range was limited to about .
== Development ==
The Le Prieur rocket was essentially a cardboard tube filled with 200 grammes of black powder with a wooden conical head attached (by doped paper or linen tape) and had a triangular knife blade inserted in a slot across its apex forming a spear point. A square sectioned wooden stick (usually pine) was taped to the rocket with about extending back from the base of the rocket and fitted snugly into a launch tube attached to the aircraft inter-plane struts.
As top French military officers had expressed concerns about fire hazard for the attacking aircraft, Yves Le Prieur first experimented with his weapon by fitting one on a short section of a Voisin aircraft wing bolted on a Piccard Pictet (Pic-Pic) automobile (one of the few period cars with a genuine 120 km/h capability). As the tests went on with full success, the weapon was soon put into active service.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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