Scramjet a "revolutionalry new design"?
Scramjet is an updated version of the ramjet, which is the first jet engine ever, and invented during WW2, used by Germans to propel their V-1 flying bombs from Holland to London England. The V-1 ramjet needed to be cataputed into the air to gain enough speed to provide compressed air to the combustion chamber. The scramjet uses a rocket to do the same job.