|Swarm of Iranian speed boats threatening US fleet.|
There were basically two tests. One had had experienced civilian boat operators in typical (for Iranians and others) small boats with a dummy heavy machine-gun mounted on it, sent out to use typical Iranian swarming tactics while A-10s (and some other aircraft) make simulated attacks. These attacks were electronically recorded for later analysis.
The other tests had the A-10s firing training (non-explosive) ammo at remotely controlled boats. All this data can be used to prepare a training scenario for flight simulators and that scenario can also be used to develop new tactics and possible modifications to the A-10s autocannon.
The A-10 is a 23 ton, twin engine, single seat aircraft whose primary weapon is a multi-barrel GAU-8 30mm autocannon originally designed to fire armored piercing shells at Russian tanks. These days the 1,174 30mm rounds are mostly high explosive. The A-10 can carry up to 1,350 rounds. The 30mm cannon fires 363 gram (12.7 ounce) rounds at the rate of about 65 a second. The cannon usually fires in one or two second bursts.