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May I suggest "nesting" those airplanes on the deck?
If you tuck a wingtip of one airplane into the "armpit" of a second airplane you can reduce deck space by 1/3.
For more suggestions, look at photos of carrier aircraft stowed in hangars below the flight deck.
Early folding schemes folded at the wing root, to minimize space needed inside the hangar, but wing-root folding is heavy and complex.
The farther outboard the hinge, the lighter you can build the hinge. Look at an F-18 which only folds the outer wing panels up, just to make it smaller than a elevator.
Yep, the numbers I quoted up thread were with the OTL wingroot folding, but I am trying to guestimate a hopothetical AR-296, as a twin engined, BMW 801esque aircraft, but with water cooled rather than air cooled engines. With OTL AR-196's, this hanger should hold 16, and if my SWAG is even close, then I should alternatively get be able to swap out 4 AR-196' for 3 AR-296's. What I hope to accomplish is to get an airgroup of either 16 {AR-196's}, or 8 {AR-196's} + 6 {AR-296's}, or 12 {AR-296's}, and of these, I would want to be able to keep 6-8/3-4 + 2-3/4-6 opperational at any given time. If more can be kept operational then fine, but I am not confident a BB commerce raider could operate a 12-16 floatplane complement if all of them were operational at the same time.
Reading up on the BMW 132, it seemed underpowered for a usefull combat capable aircraft, so I wanted a twin engined (and up engined) design that could give my raider floatplanes that could themselves conduct air attacks against merchant shipping, and possibly shoot out of the sky some pesky bi-planes!