well the ring drive is just to get it up to 100kph and for silent drive.. then the hydrogen rockets in the rear end take over.. and the ends of the rings (in work) would still be in the water to support the craft in the air bubble ..
i'm doing this as a sort of prototype sub... with more advanced ( more complex as my modeling skills improve) up and coming..
thank you for the interest..
edit... wing stubys for aquanautics..(any in water space is prime space for sensors)
and but end details.. more on the rocket engines latter...barring school work (plenty of free timet his week)
any questions on the theory of supercavitation or ring drive just ask away.. i've done tons of research over the past....atlest 5 years..