NASA astronauts explain difference between SpaceX Dragon Crew's ride and Space Shuttle

NASA astronauts Doug Hurley and Bob Behnken who flew in Dragon Crew craft on May 30 spoke to X officials and employees from International Station. During a live conference from ISS, astronauts shared ir first-hand experience of commercial craft.

Behnken talked about difference in experience with staging between shuttle and Dragon since y didn’t shut down main engine on shuttle. He said that re was a significant difference between solid rocket boosters on shuttle in second st, ding that y definitely felt that separation and heard clunk associated with it.

“Doug and I both commented that we did feel some early 0-G (zero gravity) when we came off of first st and we were getting rey to transition to second st and n we felt that second st light,” said Behnken.

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'Similar to Apollo 13 movie'

Speaking about key moment during ascent phase and techlogical differences, Hurley said that Falcon 9 is a liquid fuel rocket while shuttle h solid rocket boosters which burned very rough for first two and a half minutes. He said that difference started during staging which was very similar to Apollo 13 movie when it took some time between “booster separating and merlin vacuum engine starting”. 

“At that point, we go from roughly 3-G from 0-G for half a second. When merlin vacuum engine fires n we start accelerating again for next 5-6 minutes until we achieve orbit,” he ded.

Crew Dragon capsule blasted off from Kennedy Center's historic Launch P 39A on May 30 at 3:22pm EDT to International Station from American turf for first time in nine years. veterans Hurley and Behnken rode off capsule on top of a Falcon 9 rocket from launch p which was used by Apollo Moon missions nearly half a century ago. 

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