During ones turn an attacking Air Craft specifies an entrance point and leaving point on the table. The Aircraft may have 5 attempts to spot up to enemy units along his flight path ( having vision 12 inches left and 12 inches right - a 24 inch frontage ).

He will attack the first target he spots. This spotting is independent of all spotting by ground units; what the ground units have seen is not automatically seen by the aircraft, and what the aircraft can see is not seen by the ground units.

The rolls needed to spot are on a 1D10 :

gun in open 3 or more
Vehicle in Open moving 2 or more
Vehicle in open stationary 3 or more
Vehicle/Gun in Woods/City 8 or more
Personnel in Open 5 or more
Personnel in Woods or City 9 or more

If no enemy units are spotted by the aircraft, roll a 1d6. If a 1 is rolled ( 1 or 2 if the aircraft is American ), then a randomly determined friendly unit has been misidentified and must be attacked during the attack run.

These numbers are not set in stone, so that they can be altered as needed by the 'gamemaster' for different situations.

Ground to air is modified as follows:

First Run of an Aircraft -1
Second Run of an Aircraft 0
Third/Fourth Runs +1
Fifth and Sixth Runs +2

This rule is designed to reflect the surprise and shock of the aircrafts first arrival and the danger to the pilot who spends too much time in the air defense gunners sights. In there is a Forward Air Controller (FAC) on the board, then the aircraft need not have to make a spotting run to spot a target already seen by the FAC. This makes the rare FAC a potent force on the battle field as he puts bombs on target with less chance that the aircraft will be upset by air defense's. I think these rules can show the benefits and difficulties of using aircraft in battle, They can deliver devastating firepower, but sometimes they drop their load on the wrong people. If they have to stick around, they'll die, but if someone can coordinate their strikes from the ground, they often get away clean.