As skipper of a surface vessel Col7777, it is your duty to see to it that all airplanes that attempt to do your ship and crew harm, are effectively countered, including is possible, shooting them down. You are to avoid any and all contact with the enemies' projected ordnance, and counter with a barrage of your own...
But seriously, you could try '
Webster's Better Air Patrols", which reduces their frequency, at the expense of them being more accurate. Or, download his file, and compare it to what you have in your game now, and adjust and experiment...