3 ms·

In case you missed the Falcon Heavy launch: https://www.youtube.com/watch?v=npIDMxrzm_o&t=3051s https://www.youtube.com/watch?v=npIDMxrzm_o&t=3051s Boosters l

• ethbr1 3y ago
  Got to see it in person. It was pretty cool! Amazing how long the sound takes to reach you. ~35 seconds. Rocket is well off the pad visually before you hear the engines throttle up to full. Makes for a surprise when you see the boosters landing... then later get the sonic boom cracks.
  • fotta 3y ago
    The sonic boom crack is really cool. I didn’t realize it goes trans-sonic at such low altitude but it makes sense given how much thrust the F9 has and the low weight of the empty booster.