My carrier fleet just came in, enemy had 2 ipvs and nothing else, so I sent my 70 squadrons to take them out. Took 2 mins for each one and lost half my squadrons. That seems ridiculous. AA corvettes are great, but they shouldn't be able to withstand 70 squadrons all attacking one for more than a few seconds. I understand why capitals/cruisers have trouble hitting them because they're small and fast. If we go by canon, those 70 squadrons are 840 aircraft. I will note that it appears the ipv can soak up ungodly amounts of proton torpedoes, but perhaps it just looks that way and the ipv is fast enough the torpedoes don't actually impact.