When it is necessary to verify observer-target distance, the flash to bang technique can be used. To estimate the distance of th
e impact of your artillery, or sound from the enemy explosions, etc., you must count from the flash to sound you hear. How many meters per second are used to estimate that distance?
To estimate the distance at which an artillery is fired from or the distance of travel of a missile shot, the flash to bang methodology of calculation is used, whereby the number of seconds it takes the bang to reach us after the flash is multiplied by the speed of sound (350 m/s). The result is the distance between the listener and the explosion site.
