Results 21 to 30 of 55
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30-05-2020, 21:38 #21
- Join Date
- Jan 2017
- Location
- Finland, 60 degrees north
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- 59
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- 1,834
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30-05-2020, 22:00 #22
- Join Date
- Aug 2009
- Posts
- 5,600
Re: Crew Dragon will sooon be Launching
A really nice thing to share with my boy
We watched the last hour before lift off and only now,on our way to bed. History was made !!!
Well done
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30-05-2020, 22:01 #23
- Join Date
- Dec 2010
- Location
- Boland
- Posts
- 7,985
Re: Crew Dragon will sooon be Launching
Seriously cool. The rocket did what has become to be expected of it. Now the new stuff really starts.
Here's holding thumbs all goes well.
Boeing must be rather... disappointed... for coming second; still lots of sh..stuff to be sorted out with that calamity capsule!
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30-05-2020, 22:05 #24
- Join Date
- Apr 2014
- Location
- Western Cape, Cape Town
- Age
- 41
- Posts
- 2,476
Re: Crew Dragon will sooon be Launching
It seems that they are getting their crap together, actually insane to think they got more than 3 times the funding than SpaceX from the Commercial Crew and are 4 years over their deadline. But hope they get Starliner sorted, the more is better.
I see docking is tomorrow 16:27 our time with Bob and Doug boarding 2 hours later and capturing the flag for SpaceX.
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31-05-2020, 06:49 #25
- Join Date
- Jul 2009
- Location
- Port Elizabeth
- Posts
- 2,967
Re: Crew Dragon will sooon be Launching
Travelling at 27000km/hr looked fun
A roaring Lion kills no game
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31-05-2020, 09:22 #26
- Join Date
- Feb 2015
- Location
- Cape Town
- Age
- 42
- Posts
- 482
Re: Crew Dragon will sooon be Launching
Awesome stuff! Only bummer was the camera on the drone ship cutting out. I would have thought they'd place a few more cameras give the magnitude of the occasion.
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31-05-2020, 09:24 #27
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31-05-2020, 09:25 #28
Re: Crew Dragon will sooon be Launching
One too many wasted sunsets and one too many for the road .........
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31-05-2020, 09:40 #29
- Join Date
- Dec 2010
- Location
- Boland
- Posts
- 7,985
It's literally the noise of the rocket that causes vibration in the electonic equipment (and probably the antennas and cables) leading to loss of signal.
The physics behind that landing is very "tight" and requires split-second timing. Even with just one engine, the landing burn gives more thrust than the first stage's weight. Therefore it can't hover into position and then shut down, they have to get the timing right that the decelleration is spot-on to give zero speed when it's essentially on the pad, then switch it off.
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31-05-2020, 10:45 #30
- Join Date
- Apr 2014
- Location
- Western Cape, Cape Town
- Age
- 41
- Posts
- 2,476
Re: Crew Dragon will sooon be Launching
Yes, specifically the directional satellite uplink antenna. The vibrations are so strong and such a high frequency that the pointing motors can not compensate. SpaceX have actually looked adding a string of antenna flying drones of drone ships to create a link between the landing droneship and the recovery fleet but the cost is prohibitive for the gains. SpaceX usually uploads the landing video recordings from the droneship and a camera drone after recovery. Out of the dozens I watched there was 2 IIRC that kept connection for almost the whole landing.
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