The smaller edition which weighed 188 tons and which they did actually build a couple prototypes of, had a for-real problem that it was difficult to find a motor powerful enough to drive the thing but small enough to fit inside it. It wound up going 8 mph.
The smaller edition which weighed 188 tons and which they did actually build a couple prototypes of, had a for-real problem that it was difficult to find a motor powerful enough to drive the thing but small enough to fit inside it. It wound up going 8 mph.
They probably would have gone with jet engines in the end.