Author Topic: SpaceX F9 : Starlink v1.0 L14 : CCAFS SLC-40: Oct 24, 2020 (15:31 UTC) (Read 76011 times)

Jansen · « **Reply #160 on:** 10/25/2020 01:53 pm »

Quote from: spacenut on 10/25/2020 01:45 pm

Were they able to get the fairing?

No word yet from SX, SpaceXfleet will confirm when Ms Chief returns to port.

Chris Bergin · « **Reply #161 on:** 10/26/2020 05:38 am »

Fairings look great!

https://twitter.com/NASASpaceflight/status/1320611863613366274

https://twitter.com/NASASpaceflight/status/1320614742340370432

wannamoonbase · « **Reply #162 on:** 10/26/2020 11:57 am »

They look brand new in those shots.

I love that fairing recovery is almost routine now. Not entirely reliable, but routine.

Jansen · « **Reply #163 on:** 10/26/2020 12:03 pm »

Quote from: wannamoonbase on 10/26/2020 11:57 am

They look brand new in those shots.

It’s that ocean-washed look.

Vettedrmr · « **Reply #164 on:** 10/26/2020 01:24 pm »

Since SpaceX has reused water-landing fairings multiple times now, and given the issues they keep having with net captures, why are they still pursuing that technique? Does anyone have any idea on the delta costs on water landings vs net-captured fairing refurb?

scr00chy · « **Reply #165 on:** 10/26/2020 02:57 pm »

Quote from: Vettedrmr on 10/26/2020 01:24 pm

Since SpaceX has reused water-landing fairings multiple times now, and given the issues they keep having with net captures, why are they still pursuing that technique? Does anyone have any idea on the delta costs on water landings vs net-captured fairing refurb?

You need a ship to scoop the fairings up anyway, so why not attempt to catch them, while the ship is there?

Refurbishment costs are likely higher for fairings that landed in the ocean, but we don't know by how much.

whitelancer64 · « **Reply #166 on:** 10/26/2020 03:15 pm »

Quote from: Vettedrmr on 10/26/2020 01:24 pm

Since SpaceX has reused water-landing fairings multiple times now, and given the issues they keep having with net captures, why are they still pursuing that technique? Does anyone have any idea on the delta costs on water landings vs net-captured fairing refurb?

1. Carbon fiber composites really don't like salt water. SpaceX has clearly been sealing them pretty well in order to reuse them, but one has to imagine that there is some cost to inspect / clean / refurbish that would rather be avoided.

2. Impact with the net is going to be gentler than impact with water. Also, wave action can damage the fairing. Capture with net avoids those stresses on the fairing.

Vettedrmr · « **Reply #167 on:** 10/26/2020 03:25 pm »

Quote from: whitelancer64 on 10/26/2020 03:15 pm

1. Carbon fiber composites really don't like salt water. SpaceX has clearly been sealing them pretty well in order to reuse them, but one has to imagine that there is some cost to inspect / clean / refurbish that would rather be avoided.

They've definitely come up with some kind of viable solution (pardon the pun).

Quote

2. Impact with the net is going to be gentler than impact with water. Also, wave action can damage the fairing. Capture with net avoids those stresses on the fairing.

I don't know if I agree with that. I assume (and we all know how well that can work) that the fairings are landing nose-first into the water at least at a zero angle of attack, if not nose-up.

We know of fairings that are damaged during capture attempts that I assume have been scrapped. But, for the fairings that are intentionally allowed to water-land, how many of those have been scrapped? This may be info that's just not available, but ISTM that water-landings have been pretty successful recently.

Have a good one,
Mike

Jansen · « **Reply #168 on:** 10/26/2020 04:37 pm »

Quote from: Vettedrmr on 10/26/2020 03:25 pm

We know of fairings that are damaged during capture attempts that I assume have been scrapped. But, for the fairings that are intentionally allowed to water-land, how many of those have been scrapped? This may be info that's just not available, but ISTM that water-landings have been pretty successful recently.

https://spacexfleet.com/fairing-data/

A lot of fairings recovered from the water were heavily damaged. I’m sure someone at SX did a cost benefit analysis and decided that even recovering a single fairing would pay for the nets, arms, and boats.

AJW · « **Reply #169 on:** 10/26/2020 04:55 pm »

Quote from: whitelancer64 on 10/26/2020 03:15 pm

1. Carbon fiber composites really don't like salt water. SpaceX has clearly been sealing them pretty well in order to reuse them, but one has to imagine that there is some cost to inspect / clean / refurbish that would rather be avoided.

This doesn't sync with my understandings where composites are often used for repairs that must stand up to salt water corrosion, the Americas Cup AC72s were largely carbon fiber composite, and even CF boats and road bikes seem to handle salt better than other materials with not much more than a rinse off with fresh water afterwards.

intelati · « **Reply #170 on:** 10/26/2020 04:57 pm »

Quote from: AJW on 10/26/2020 04:55 pm

Quote from: whitelancer64 on 10/26/2020 03:15 pm
1. Carbon fiber composites really don't like salt water. SpaceX has clearly been sealing them pretty well in order to reuse them, but one has to imagine that there is some cost to inspect / clean / refurbish that would rather be avoided.

This doesn't sync with my understandings where composites are often used for repairs that must stand up to salt water corrosion, the Americas Cup AC72s were largely carbon fiber composite, and even CF boats and road bikes seem to handle salt better than other materials with not much more than a rinse off with fresh water afterwards.

The issue is that the fairings are constructed as a honeycomb. So a ton of nooks and crannies for the sea water to infiltrate.

FutureSpaceTourist · « **Reply #171 on:** 10/26/2020 06:34 pm »

https://twitter.com/uslaunchreport/status/1320805566726447112

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Water retrieved Fairings look like new - SpaceX Mission 100

wannamoonbase · « **Reply #172 on:** 10/26/2020 10:20 pm »

Great Video!

You captured great detail of the whole structure.

That recovered fairing looks fantastic.

FutureSpaceTourist · « **Reply #173 on:** 10/27/2020 03:03 pm »

https://twitter.com/farryfaz/status/1321115310230065158

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Here are the two fairings Ms. Tree brought back from the recent @SpaceX Starlink 14 mission

FutureSpaceTourist · « **Reply #174 on:** 10/27/2020 04:08 pm »

https://twitter.com/kyle_m_photo/status/1321135053234200577

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JRTI and B1060.3 are just off the coast now. #SpaceXFleet #SpaceX

FutureSpaceTourist · « **Reply #175 on:** 10/27/2020 05:01 pm »

Live in about 30 mins

FutureSpaceTourist · « **Reply #176 on:** 10/27/2020 06:10 pm »

https://twitter.com/julia_bergeron/status/1321163550488973315

FutureSpaceTourist · « **Reply #177 on:** 10/27/2020 06:35 pm »

Love this from Julia:

https://twitter.com/julia_bergeron/status/1321165183188979713

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Many folks enjoying the day at Jetty Park were pleasantly suprised by the arrival of JRTI and B1060.3. I even heard a retiree say to her husband "Now will you listen to me when I pick a place to go?" There were many selfies and a few cheers as they passed by. #SpaceXFleet

FutureSpaceTourist · « **Reply #178 on:** 10/27/2020 06:36 pm »

https://twitter.com/nasaspaceflight/status/1321164977546399751

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Welcome home Falcon 9 B1060.3 - the booster that launched SpaceX's 100th successful mission with the latest Starlink batch of sats.

NSF Fleetcam Live - with @SpaceXFleet commentary!

➡️youtube.com/watch?v=h_VXfH…

scr00chy · « **Reply #179 on:** 10/27/2020 07:40 pm »

Quote from: FutureSpaceTourist on 10/27/2020 03:03 pm

https://twitter.com/farryfaz/status/1321115310230065158

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Here are the two fairings Ms. Tree brought back from the recent @SpaceX Starlink 14 mission

If these fairings are the ones brought by Ms. Tree, as the tweet suggests, then they're from L13, not L14.