Peter Stickney wrote:
And then, there was Operation Pinball, the ultimate simulator. Real
bombers with real turrets, but the .50 cals have been replaced with
.30 cals firing frangible (break up on impact) bullets. The targets
are specially armored P-63s that make passes on the student gunner's
airplane. There are acoustic sensors in the P-63s that can hear the
impact of the bullets on the skin for measuring the number of hits.

Wooden bullets, if I recall correctly. An old family friend,
now passed on, experienced some of this.

He said the ballistics of the frangible bullets were so far off
from Real Life (tm) that the usefulness was limited.


Jeff