Radar is unuseful, I dont even install it anymore. It gives your position to enemies more than returns you nice data. Better to dive and use hydrophones to get position course and sepeed. its safer. By the way, hydro has a longer range
But I like the redar warning, I always have it, since being under the keel of a DD after 1943 almost means death. I get contact, dive and identify if it is a plane, warship or merchant by sound, then i go for it or run from it submerged at 4 knt... i never fight planes, its not a fair fight.
