5 ms·

This is the best video of the failed landing attempt I've seen so far. Elon tweeted a grid fin hydraulic pump stalled. I understand for "marketing" reasons why

This is the best video of the failed landing attempt I've seen so far. Elon tweeted a grid fin hydraulic pump stalled. I understand for "marketing" reasons why they stopped the video feed from the first stage but since there wasn't any danger to humans here I was disappointed that they cut away from that and pretty much went into the damage control speak of "the primary mission is going well."

joshlegs 8y ago
I'm sure they'll release video of it sooner or later. They not long ago release that montage of all their rocket failures. I'm a little disappointed too, but it was probably the right call by them to cut the feed.
- jerf 8y ago
  For those whose day it is to hear about this: https://www.youtube.com/watch?v=bvim4rsNHkQ https://www.youtube.com/watch?v=bvim4rsNHkQ Can't say they don't have a sense of humor about it.
  - codeulike 8y ago
    And bear in mind that these things are 12-storey-high explosive tubes landing from 75km up in the air
codeulike 8y ago
Elon's saying they shouldn't have cut away from it. He just posted the rocket-eye view of the water landing: https://twitter.com/elonmusk/status/1070399755526656000 https://twitter.com/elonmusk/status/1070399755526656000 Engines stabilized rocket spin just in time, enabling an intact landing in water! Ships en route to rescue Falcon.
- DreamSpinner 8y ago
  Although I'm completely unqualified to comment on it, I did notice that the spin seemed to reduce at the same time the landing legs extended. I'm wondering if they may have acted like fins and contributed to the countering of the rotation. If that's the case, it might be that a contingency approach of a small extension of the legs outwards (only a little) might help.
  - lutorm 8y ago
    extending the landing legs will reduce roll rate for exactly the same reason a figure skater slows down when they extend their arms: roll axis moment of inertia goes up.

joshlegs 8y ago

I'm sure they'll release video of it sooner or later. They not long ago release that montage of all their rocket failures. I'm a little disappointed too, but it was probably the right call by them to cut the feed.

jerf 8y ago
For those whose day it is to hear about this: https://www.youtube.com/watch?v=bvim4rsNHkQ https://www.youtube.com/watch?v=bvim4rsNHkQ Can't say they don't have a sense of humor about it.
- codeulike 8y ago
  And bear in mind that these things are 12-storey-high explosive tubes landing from 75km up in the air

codeulike 8y ago

Elon's saying they shouldn't have cut away from it. He just posted the rocket-eye view of the water landing: https://twitter.com/elonmusk/status/1070399755526656000 https://twitter.com/elonmusk/status/1070399755526656000 Engines stabilized rocket spin just in time, enabling an intact landing in water! Ships en route to rescue Falcon.

DreamSpinner 8y ago
Although I'm completely unqualified to comment on it, I did notice that the spin seemed to reduce at the same time the landing legs extended. I'm wondering if they may have acted like fins and contributed to the countering of the rotation. If that's the case, it might be that a contingency approach of a small extension of the legs outwards (only a little) might help.
- lutorm 8y ago
  extending the landing legs will reduce roll rate for exactly the same reason a figure skater slows down when they extend their arms: roll axis moment of inertia goes up.