I am sharing a pic and info of the 58'' Disney Nautilus I am building. It is a 3d printed sub that I have enlarged 33% to 58''. For RC operation he added non scale stern planes. You can get the stl files for the 44"" sub on the Cults stl files marketplace under MINIALAND57 or type in Disney Nautilus RC sub in the search bar. For the complete sub you have to get the main files and the accessories files for around 50 bucks. He also offers files and instructions for a wtc for the 44in sub for 10 bucks. For the 44in sub you only need a 220 by 220mm printer that you can get pretty cheep. For the 58"" I bought a 300 by 300mm printer. He has a few videos of the sub in action on Youtube that you can find by doing a search using MIMIALAND57. He has quite a few videos posted so just scroll down and you can find it. I think there are 3 videos. The sub operates amazingly well. Well worth a look. BTW everything is in French. I will post more pics as the build progresses.
Walt
Walt