Floatplane sloops could extend convoy reconnaissance and ASW

How useful would a class of floatplane-carrying sloops have been in the Battle of the Atlantic?

Potentially very useful for convoy ASW and air patrol, provided the navy solved the dangerous problem of recovering floatplanes at sea.

A flotilla of small ships carrying several floatplanes and depth charges could give active convoys their own daylight submarine searches. With enough hulls, one aviation escort could accompany many of the convoys at sea. The aircraft might also discourage Focke-Wulf Condor reconnaissance or attack aircraft. Recovering floatplanes without stopping was the main operational problem, which makes a stern ramp or similar retrieval system central to the concept.