Måling av Carl Gustaf 84 mm rekylfri kanon : akselerasjon og trykk

Personnel ring weapons will be exposed to a pressure wave from the gunpowder gas that accelerates the projectile. Work from other countries suggest that there may exist mechanisms that could damage the brain and other organs in the body, as a result of repeated exposure. At this time the damage mechanisms is not known, and the type and size of the pressure wave that cause damage. If such damage mechanisms are found, it will be required to investigate for which weapons this is a problem. To increase the knowledge of this kind of pressure wave we measured pressure near a 84 mm recoil free canon (RFK). At the present time there is no indication that RFK is more relevant for such damage mechanisms than other weapons. The reason that the measurements was done on this weapon is that there was scheduled a test shooting in connection with a new IR aiming device. To test the mounting we measured accelerations on the aiming device. A high speed camera captured the shooting. It was measured pressure between 60 to 200 kPa at distances between 1 and 3 m from the weapon. Accelerations on the aiming device was measured up to 500 g. Accelerations were bigger at the weapon than on the aiming device.