The way I see it, losing superconductivity instantly shuts down the motor by tripping the circuit breaker, and causes it to transfer it's momentum energy into t

The way I see it, losing superconductivity instantly shuts down the motor by tripping the circuit breaker, and causes it to transfer it's momentum energy into the surrounding liquid hydrogen. Some hydrogen might boil off, but it's nothing a safety valve can't handle. The plane can then glide to the closest airport or switch to a non-superconducting mode.