Planes wiping out single ships is not the issue in general, it is entirely reasonable, but a stack of 8x NAV squadrons which are able to sink 20+ ship carrier fleet (or even larger battleship fleet) in a day certainly is another story.
Or did I miss some part of history where 800 (presuming HoI2 squadron is roughly 100 planes) mainly maritime patrol\anti-sub planes blasted the entire enemy navy in four hours?
Look at Midway the four main carriers wre destroyed in something 5-10 minutes from only a few bombs; the real life examples above show how only a few planes can damage or destroy the main capital ships. In real life the Royal Navy was so worried about this iirc they had an RAF unit on permant standby to provide air cover for them as much as possible in the Med.
On the other hand a number of German capital ships (heavy cruisers) iirc slipped through the channel after being harrased by hundreds (iirc) RAF bombers etc
In one of the big show downs between my Royal Navy Fleet and the main Japanese Fleet in the HOI2 game mentioned above the Jap carriers destroyed 2 battleships, seriously dammaged my carriers and wiped out an entire squadron destroyers and a few other ships while i did hardly any damage to their capital ships but did take numerous screens. To quote myself:
"They [the RAF] reaped holy vengeance on the Imperial fleet sinking three carriers and two battleships within a short space of time. They then returned to their previous duties but the naval fighting did not end. The Imperial Fleet struck back sinking yet another Royal Navy battleship and once again the RAF was called upon. In one day the decisive moment of the naval war happened; the RAF strikes annihilated the Japanese capital ships – two more carriers were sunk and a further seven other capital ships!"
Imo so they should, i didnt write down what i had used by in that game i had something 16 tactical bomber wings (in four groups) and eight straetgic wings in two groups; supported by hell loads of fighters, interceptors, eight CAS and whatever else my allies had. So the level of destruction inflicted seem appriobitaly for the ammount i threw at the Japanses.
"During October the next major naval battle took place. The Royal Navy, now patched up from the fighting earlier this year, stood toe to toe with the Japanese for yet another inconclusive battle. The Japanese fleet made a huge error and fled to port within Borneo – sensing an opportunity, after the huge success earlier this year, the RAF was called in. Over the next few days the bombers, supported by the air fleet arm from the carriers, pounded the Imperial Fleet in port but were unable to deal any sort loss to the capital ships, although they did sink several destroyers in port. Under such a hail of bombs the Japanese sallied forth, linked up with reinforcements, and struck the Royal Navy. In yet another devastating battle the Japanese sunk the light carrier HMS Ocean and the battleships Prince of Wales and the Royal Sovereign, furthermore three fleet carriers were also badly damaged. The Royal Navy’s Indian Fleet retreated and every bomber in the theatre was called upon to hunt down and destroy the Japanese fleet. With the RAF scouring all waters around Borneo, Java and Sumatra it was only a matter of time until they found the marauding Japanese fleet and unleashed hell upon them. Before the Japanese fleet was able to escape eastwards they had lost four more carriers.
....
While the navy may not have been able to deal the killing blow, they had left there mark on the Japanese and with complete air superiority no Japanese ship is now safe.
"
As learnt by the real life examples air superiority is key and ships are screwed if they dont have it.