trikke, on 20 February 2018 - 10:54 AM, said:
can you imagine how much vibration the pilot would have felt each time they fired in unison? they're nose mounted, right?
knock your coffee right out of the cupholder!
personally, if i was Lockheed, i would have tested firing individual cannons in rotation, but hey, that's not the murcan way
from wikipedia The 37 mm (1.46 in) M4 autocannon was originally selected for a quadruple mount in the nose, but the trajectory of the 37mm shells dropped lower than other weaponry, limiting its effective range. A hydraulically articulated nose that could be bent up to correct this problem was tried, but was dismissed as too complex. Then, a 75 mm (2.95 in) M5 autocannon paired with twin .50 in (12.7 mm) machine guns was tried and proved much more successful.
read this wiki... what a wild, sad story for this 70-foot-wide 15 ton 1940 abortion
yes they are mounted in the nose and apart of the vibration imagine the noise while shooting