No and before you think about it. A SNR is useless in a conventional rocket. You need it in a conventional take off and hybridize hydrogen thrust to escape the atmosphere with turbo jets or other thrusters that work in the Earth’s atmosphere. The ideal spaceship and battleship looks something like a hovercraft and can even recharge its hydrogen tank on the ocean where it also lands and takes off. Ofcourse the reactor always provide all the amperage you need and also in space. This may be why I like Virgin’s concept over the others. Ps I’m not crazy