This post is based on my limited understanding of naval warfare during WW2 generally, and the effect that reliable radar had on said warfare specifically, so what I am suggesting may be OP, but just bear that in mind when replying, please.
I propose these additional effects after researching Radar:
Surface Warships, except for TBD’s and Costal Defence Ships, receive +1 to their Attack and Defence values.
Seaplanes receive +2 to their Attack value.
Under Convoy Modifiers during Convoy Raiding; an additional row that reads: “If aircraft are on patrol in the Sea Zone and the aircrafts Nation has Radar Technology, +3”.
When Radar is researched this will replace the previous row that reads; “If aircraft are on patrol in the Sea Zone, +2”. I know that there is already a bonus for having radar, but I read that as shipborne radar, not airborne radar.
- Medium Bombers receive +1 to their Attack value if attacking Submarines.
This is a bit specific, and as Medium Bombers already attack at 7, I’m not married to this one.
- Anti-Aircraft Artillery receive +1 to their Attack and Defence values.
This is shaky at best, and not related to naval warfare, or radar, so shoot this one at your leisure,
(haha, puns), but it is meant to represent proximity fuse AA shells, which had a HUGE impact an AA lethality. Maybe it could be a House Rule Technology?
Like I said; I don’t think these new rules should definitely be used, but based on the history involved, they could be. Either way, I would appreciate any feedback.