Similar stuff to what was posted earlier.
Sinking CV's (and learning how to sink them) takes patience.
* One flight of B26's, 500# bomb load, 50% fuel.
*If you have spotted the CV while in climbout, continue climbing on any course except toward it, until you level.
* 8,000 ft. is my magic altitude. You will of course always be exposed to the fleets 5-inch guns, but you are barely out of reach of the auto-ack. 8K also works because most times you can anticipate the CV's turn-arc and still hit it. It has been my experience that it is usually too late for the carrier no matter which way it turns. One ship length out, eyeball the turn arc, and drop a ship-length ahead where you think the CV will end up in that turn arc. Also, look at the pattern of turns the CV makes. Sometimes instead of a blatent turn, it will zig-zag left & right. Also, typically I have to settle my speed so that my climb rate on the E6B reads zero with my doors open. Then I calibrate, double, triple, even quadruple-checking my E6B for any change in speed. Do this enough and you get good at it. If your calibrated speed matches within one m.p.h. of your true airspeed, you are set.
*Drop salvo should be set to 4. Hit your bomb release a couple times to spread a good carpet across your target.
Usually, the only times I fail to sink a CV is if it has a good air defense intercepting my bombers, someone is a damn good shot in the 5-inchers, or someone really makes that CV turn as tight as they can, virtually stopping it in the water.