An improvement of an old favorite! Start flight at almost any altitude and speed, use activation 1 to separate the vehicle from the submarine. As the sub decends towards the sea, continue to use normal flight controls to guide it. Once below 1500ft altitude, deploy your airbrakes to slow the sub down. As splashdown is achieved, use activation number 2, which will start up the VTOL on the submarine and seperate the large submarine tail that guided your decent. Use yaw and trottle to drive the sub one in the sea. I am not the creator of the original base model of this as I am reusing a previously created sub hull and plane fuselage, I have however spent hours trying to improve on it and make it a fully comtrollable sea vessel. Enjoy!!!