Yes, it was definitely a stopgap made in the early days of the Battle of the Atlantic. IIRC only 35 CAM launches were ever made in anger, and they managed to down several FW 200 Condor aircraft that were tracking convoys for the U-boats. 12 of the ships were lost to U-boats while serving with the convoys (again IIRC).
I believe the catapults and planes were removed from the surviving ships once the US was able to build enough escort carriers to supply the USN and Royal Navy (plus other Allied navies).
I believe the catapults and planes were removed from the surviving ships once the US was able to build enough escort carriers to supply the USN and Royal Navy (plus other Allied navies).