While I did not create this with the ultraheavy seaplane challenge in mind, it fits all of the necessary requirements (It being absolutely huge at 45,000 lbs and yet being able to float, because why not).



I will also repeat that it is a massive bomber, as it can hold 24 bombs. To drop them, lower the bomb bay doors with the VTOL lever and activate 1-4, each number being one set of six bombs (so as to hit multiple targets).




While taking off from water is very easy, landing takes a little bit of fiddling around with it. To land without flipping over (Though it can take off while upside-down in the water), just barely get it in the water and keep tapping up the pitch lever until you're under 80 mph, at which point, you don't need to do anything else.



Other than that, it's very self explanatory and flies well, so have fun with it, and don't forget to leave an upvote!