The RN did not provide carrier based aircover for the convoys until well into '43, and found the best poor weather aircraft to be the venerable Swordfish. It was found to be an ideal poor weather aircraft, and with its ASV radars could have some chance of electronic detection, even in conditions of poor visibility. The most common fighters were Wildcats by that stage. It was found that even just a few aircraft could break up Luftwaffe attacks and prevent the LW strike aircraft fom reaching the targets. LW losses were low, but their effectiveness also plummetted after carrier based aircover was provided.