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charles_flast Thursday at 10:47 PM7 repliesview on HN

That "landing" (is it still considered a landing if it's chopsticked a few meters before it touches the ground?) is so unnatural it almost looks fake. So big and unimaginable that it feels like watching fx on a movie!

The close-up camera right after was interesting, I thought it captured on the grid fins, but it looks like there are two small purpose-built knobs for that.

The times we live in!


Replies

yreglast Thursday at 11:10 PM

You have perfectly described the feeling I had regarding the first belly flop demo (at least I think it was the first one?)

https://youtu.be/gA6ppby3JC8?si=wY7TQsbR_wxoud75&t=70 (ten seconds from the timestamp)

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ortusduxlast Thursday at 10:57 PM

IIRC, the grid fins are not strong enough to support the rocket, and reinforcing them would add too much weight to the vehicle.

The plan is to catch the second stage the same way, and the starship in flight now is the first to have mockup pins to test the aerodynamics and see if they cause issues during reentry.

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noneeeedyesterday at 12:33 PM

I found the same when the first Falcon Heavy executed the simultaneous booster landing. Watching them both come down, within moments of each other at neighbouring pads was incredibly cool.

Its sad that Gerry Anderson never got to see this. It's like something from a Thunderbirds episode.

0_____0yesterday at 1:41 AM

You can hear some sounds in the stream that I think are one of the presenters weeping during the launch and landing sequences. I think I would be similarly awe struck to witness such a thing

gazchoplast Thursday at 10:58 PM

I heard someone say it's like trying to land the Statue of Liberty. Turns out the statue is actually shorter.

levocardialast Thursday at 11:02 PM

The clearance is amazing -- probably bigger IRL than it looked on the camera, but it looked like only a foot or two between the chopsticks arm and the top of the rocket! The control algorithms on the gimballed engines must be insanely precise.

adolphyesterday at 2:02 AM

Since I’ve never seen an f9 landing, watching ift5 land was kinda mind blowing. Even 6k away you can tell it’s really big but moved with a grace and smoothness like a hippo in water only with crackling flame.