USAF rocket powered sled breaks speed record

PokerJones · Apr 20, 2016

https://www.theverge.com/2016/4/20/...vitation-world-speed-record-633-mph-air-force

Thought this was pretty cool. I'd love to know what motors they used.

marcusSRG · Apr 20, 2016

Cool! Notice the hang fire and and also the greenish flame? Like a giant I-Max! Killer.

Clusters can be tough:wink:

MClark · Apr 20, 2016

Not a hang fire, the motors fire in a specific sequence to control acceleration. In the shot during setup the pole by the track is part of the firing system. Typically fired by position on the track not time.
Not sure about this one but a lot of HVARs are used to push sleds. Finest of 1950's technology.

10X as fast! https://m.youtube.com/watch?v=L5bPu58fSc0

M

marcusSRG · Apr 20, 2016

Ahh, thanks for the clarification. Shoulda guessed.

Aren't HVARs what Mythbusters used in their tests? If so I'd say these aren't HVARs as they seem to have more smoke and flame

MClark · Apr 20, 2016

For pushing sleds they use motors they have a lot of and nobody wants anymore, think cheap

kcobbva · Apr 20, 2016

I was stationed there in 85-87. Was so awesome to watch sled tests!

g zilla · Apr 21, 2016

looks like a B6-4

USAF rocket powered sled breaks speed record

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