ORIGINAL: spence
Unless the Glen is some sort of quantum mechanics device searching a single 30 degree arc at max range 4 is all the plane can manage in half a day/before fuel exhaustion. It quite simply should not be able to search. If the IJ Player wants to launch single plane attacks on the US mainland with his Glens or wants to perform recon that's fine but naval search should not be allowed.
The serviceability of the Glen is 1?
I didn't code the DB, just showing you what it is.
If you don't want your opponant using the Glen to search, then a house rule can fix this. Even if you change it to a recon plane in the DB, it will still be able to carry out the Naval Search mission type, so really a House Rule is the only way to accomplish what you want at this time.