It's mentioned by Novarra as "P.600", but with very few info. I once read about plans to launch fighters
like the Bachem Natter from small ships, either at the coast or from inland waters in order to make them
more mobile and for the ability to concentrate them. Maybe that's the kind of ship borne use, which was
intended for the P.600, too ? Don't know if there really were such projects, but at the end of the war, I
cannot think, that there were still considerations of true carrier aircraft, as the German Navy was limited then to
UBoats and ships not larger then destroyers due to the "Führerbefehl" (Fuehrer's order) from 1943.
Pulse-jet powered as the P.600 would have been, launching it via catapult from a ship would of course have
been possible,
but I think the hook really would have been useless.