Hi
When I start new carrier in 1941 I can fit on my sub only AA SD radar. I understand it should search for aircraft contacts but I noticed it shows me surface contacts. There never happened it spoted any aircrafts. Is it buged ?
And my another question about this radar: can I use it manualy ? When I go to radar room I can't turn them on. Maybe there is hidden room with this radar

but I checked all rooms, all shortcuts and nothing.
Thanks