Thanks for finding that for us Donut. 45m :O now thats the sort of plane heat im talking about... and to kill within 13m, thats a real bad day for a submariner.
As far as sprinkling these improved sub killers at airbases. Can anything be done to address the frequency of air attacks. One thing I noticed on mission, was that a Kate spotted me but took no action, then it was shortly followed by other planes in the vicinity that actually attacked. Correct me if i'm wrong, but wouldn't you take all the gear you needed rather than just spot for someone else ^^ , this is where I think Tater has the right idea.
I see Ducimus has done a fair bit of work on planes in his TM mod, but am loathe to request he unstitch it as i'm sure I know what the answer is
Regardless of that, a dedicated air layer MOD might be a far better idea. If anyone needs me to do monotonous data entry then PM me.