Within the limits of WW2 Tech, what would be the spec for the "worlds best escort vessel. Must be doable by 1943: Here goes my proposal:
4000t standard
2x 5''/38 DP singles in superfiring A and B positions.
1x Hedgehog+ DCT, later replaced by 2xSquid
Diesel engines for 27Knots max speed
Quad 21''TT (Centerline) for Surface action against raiders
Hangar aft for 4 seaplanes. (2 Seaplane fighters for point defence+ 2 Scout ASW patrol armed with Depth Charges and/or Rockets)
3x twin 40mm (Bofors) AA (one on top of the hangar and one each side)
I'm willing to consider turbines over diesels for compability with destroyers and might consider replacing the seaplanes with Autogiros for the ASW mission.
This vessels could be upgraded in the 50s, with helis replacing seaplanes.
They would be expensive, but make excelent Escort Group Flagships.
Opinions?