WEAPON SIMULATOR

摘要

A weapon simulator of the kind comprising a combustion chamber (28), means (21, 31) for admitting fuel gas to the combustion chamber, ignition means (23) for igniting fuel gas in the combustion chamber to cause an explosion, an exhaust port (29) in the combustion chamber and outlet valve means (14) for closing the exhaust port and arranged to open rapidly and with audible results in response to explosive pressure rise within the combustion chamber, characterised in that the outlet valve means (14) comprises a collapsible diaphragm (14) and by a breechblock (8, 11) for releasably gripping the collapsible diaphragm whereby the gripped portion of the diaphragm is released on its collapse due to the explosive pressure rise in the combustion chamber.