Monday, September 21, 2020

What a Difference 22 Years Makes

 1942: XB-29 first flight.  Maximum speed: 357 mph.  Service ceiling: 32,000 ft.

 1964: XB-70 first flight.  Maximum speed: 2056 mph.  Service ceiling: 77,000 ft.

Compare and contrast.  That is all for today.

No comments:

Post a Comment