galacticjourney: (Default)
[personal profile] galacticjourney


The bird finally has wings!

By bird, I mean that lawn-dart of a rocket plane, NASA's X-15. Until yesterday, that sleek black vehicle, designed to probe the edges of space from underneath, had been a work in progress. The X-15 had already flown 25 times, zooming at faster than Mach 3 and climbing to a height of 40 kilometers. But its engines, a pair of Reaction Motors XLR11s, were an old set of training wheels: virtually the same rockets that pushed Chuck Yeager's X-1 past the sound barrier in 1947.

Together, these engines gave the plane a thrust of 32,000 lbf (pounds of force--or the force of Earth's gravity on one pound of matter). That's nothing to sneeze at, but it was always an interim solution. Yesterday, veteran test-pilot Scott Crossfield took the X-15 for a spin with the engine it was always meant to have: the Reaction Motors XLR99.

(find out how the flight went at Galactic Journey!)

Profile

galacticjourney: (Default)
galacticjourney

April 2017

S M T W T F S
      1
2 34 56 78
9 1011 121314 15
16 171819 2021 22
2324 252627 2829
30      

Links

Most Popular Tags

Style Credit

Expand Cut Tags

No cut tags
Page generated May. 1st, 2017 04:23 am
Powered by Dreamwidth Studios