Watch This PBY Catalina RC Plane Soar Through the Sky and Over Water!

This model is capable of take off and landing on water, by detaching all the landing gear, patch the landing gear well and cover it again using packing tapes. I need to coat the hull or the underbelly with 4 layers of plastic primer, even before doing that I also already coating the hull with 2 layer of clear varnish to make it water tight. Even with that effort it still a bit leaking if it takes too long on water before taking off. I suspect the leaking is from the main landing gear well on each sides. Also I need to replace both floats with foam block to prevent leaking.

Build Video : https://youtu.be/vXn_B4qyWEE

Build instructions :
https://paper-replika.com/index.php/rc-foam-project/pby-5-catalina-rc-plane-flying-boat