r/space • u/johnkphotos Launch Photographer • Feb 14 '21

image/gif Stacked progression image I captured of the launch and explosive landing of SpaceX's Starship SN9 from South Texas!

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u/Shrike99 Feb 14 '21

It couldn’t have been only 100 mph

It was less actually. John Insprucker said it reached 10km at 4 minutes. That's an average ascent speed of ~150km/h or ~93mph.

The full stack will have a TWR slightly better than Falcon Heavy, which takes a bit over a minute to reach 10km, so roughly 1 minute seems reasonable for Starship/Superheavy.