Sure - here's my spreadsheet file, listing planes from the one with most recorded battles with U-Boats to ones with no encounters at all:

https://drive.google.com/file/d/1db9...ew?usp=sharing

As for sources, I used two lists on uboat.net:

1) Aircraft losses to U-Boats:
https://uboat.net/history/aircraft_losses.htm

2) U-Boat losses (these are ordered by year, with cause of loss noted by each boat):
https://uboat.net/fates/losses/

Of course there's a gap in data here - the list doesn't cover battles that didn't result in destruction of either plane or the boat. Still, if a plane didn't score any kills or suffer any losses, one can assume it either wasn't used or was utterly ineffective in this role.

Excellent and useful work ! :Kaleun_Applaud:
Thanks a bunch for sharing !

One remark: actually, a Ventura looks like a Hudson, not a Sunderland...

What my comment means is that in SH5 campaign files, Sunderland 3D model is used to represent Ventura (and Hudson by the way). I added both planes in AirForce mod but stock SH5/TWoS doesn't have them and uses Sunderland in their place.

Thanks for the charts kapuhy. Very much appreciated!

the hit aircrafts
 

If the hit aircrafts could then return to their base immediately, and not come back again and again to attack the sub, that would be a plus...