Author Topic: SpaceX Purchases 2 New Ships: Bob and Doug  (Read 55346 times)

Offline Fizrock

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SpaceX Purchases 2 New Ships: Bob and Doug
« on: 08/11/2021 06:32 am »
New scoop from Space Explored says SpaceX has purchased(!) 2 new ships, naming them Bob and Doug. They've already been given spiffy new paint jobs. Presumably they'll be used for fairing recovery
 
Article: https://spaceexplored.com/2021/08/10/scoop-spacex-purchases-and-outfits-two-ships-potentially-for-fairing-recovery/
 
« Last Edit: 08/11/2021 07:04 am by Fizrock »

Offline raivo45

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Re: SpaceX Purchases 2 New Ships: Bob and Doug
« Reply #1 on: 08/11/2021 06:40 am »
There's a thread for fairing catchers  :) : https://forum.nasaspaceflight.com/index.php?topic=45083.0

Offline Fizrock

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Re: SpaceX Purchases 2 New Ships: Bob and Doug
« Reply #2 on: 08/11/2021 06:51 am »
There's a thread for fairing catchers  :) : https://forum.nasaspaceflight.com/index.php?topic=45083.0
 
 
We don't actually know what these two ships are for, so I think they warrant their own thread. If it turns out they are indeed for fairing recovery, this thread can be moved.
« Last Edit: 08/11/2021 06:51 am by Fizrock »

Online FutureSpaceTourist

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Re: SpaceX Purchases 2 New Ships: Bob and Doug
« Reply #3 on: 08/11/2021 08:20 am »
twitter.com/spaceoffshore/status/1425369355341254659

Quote
I can confirm that SpaceX is building two brand new ships.

Bob and Doug are designed as an all-purpose solution to tow and support droneships offshore and also recover fairing halves.

The ships have been under construction in Louisiana since May and are due in Florida very soon

https://twitter.com/spaceoffshore/status/1425370161377329153

Quote
A large winch can be seen underneath the new raised platform which is designed to tow droneships at times when they cannot run autonomously.

A large crane has been added to both ships to recover fairing halves from the water.

Both ships are an impressive 260ft long.

FWIW Iím fine with this being a separate thread. They are very different ships from the dedicated fairing catchers.

Edit to add:

https://twitter.com/spaceoffshore/status/1425376145105694722

Quote
I mean new to SpaceX. They are both older ships that have been laid up for a while so were probably very cheap.
« Last Edit: 08/11/2021 08:46 am by FutureSpaceTourist »

Online DistantTemple

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Re: SpaceX Purchases 2 New Ships: Bob and Doug
« Reply #4 on: 08/11/2021 11:36 am »
With Phobos and Demios, and according to the plan for p2p MANY other offshore launch and landing locations, SX is going to need tugs, support ships, and many others. In multiple eventually...
So the marine side of SX will be significant.
Edit:
the offshore towing is a constant need, but this comes with a comfortable base for SX crew for any safeing and management of the drone ships. Hiring tugs is expensive, and has less opportunity for SX to use for such additional purposes.

They may still need additional normal tugs for port entry and docking but this is a different matter.
« Last Edit: 08/11/2021 11:40 am by DistantTemple »
We can always grow new new dendrites. Reach out and make connections and your world will burst with new insights. Then repose in consciousness.

Offline philw1776

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Re: SpaceX Purchases 2 New Ships: Bob and Doug
« Reply #5 on: 08/11/2021 01:39 pm »
Nice choice of names. Respect.
FULL SEND!!!!

Offline CT Space Guy

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Re: SpaceX Purchases 2 New Ships: Bob and Doug
« Reply #6 on: 08/11/2021 02:17 pm »
2. Upon reaching the booster landing area, she casts off the ASDS and continues to the fairing splashdown area. She recovers the fairings and returns to the ASDS, which by now has the F9 first stage in it's Octograbber and has done everything that can be done remotely. I believe this would take less than a day.


Can't.  The ship has to stay near the ASDS for control and monitoring.

Can.    Itís possible to control and monitor the ASDS from anywhere on the planet.

Jim is correct, but "control and monitoring" doesn't have all that much to do with it:  The ASDS could, technically and legally, be left to it's own devices so long as the required "Not Under Command" day shapes (lights at night) are displayed, however response time in the event of an issue during the landing and Octograbber grabbing phases (and ain't we seen a few of those already!!) plus safeing of the landed booster and ASDS health checks post-landing ("Are we sinking?" Nope. All good then!") are all critical to SpaceX so, with millions of dollars at stake, they really do not want to be too far away.

The question is, what is too far away? Now that they are not trying to catch the fairings, could they alter the glide path to get them closer the ASDS?

Hummm I thought this was impossible?

Online FutureSpaceTourist

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Re: SpaceX Purchases 2 New Ships: Bob and Doug
« Reply #7 on: 08/11/2021 04:13 pm »
https://twitter.com/spaceoffshore/status/1425490005925974024

Quote
One of SpaceX's new recovery ships is on the move!

Doug (Still showing by its old name Ingrid) is sailing out from a Houma shipyard and towards the Gulf of Mexico.

Offline AstroDave

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Re: SpaceX Purchases 2 New Ships: Bob and Doug
« Reply #8 on: 08/12/2021 12:50 am »
Stoked to see this!
-First, the fact that SpaceX is able to repurpose oil/gas assets for space operations saves mucho $$$.
-Second, length of vessels will enable higher surface speeds for quick trips to and from fairing recovery zones.
-Third, multipurpose vessel: both ASDS towing and fairing recovery.

Ack! Got a little excited, see edit below.
-Fourth, the crane! Those cranes are capable of loading/unloading in a seaway because they can adjust for swell variability. That means easier fairing recovery, materials transferred back and forth to the ASDS at sea (if needed), and maybe even dragon capsule recovery.

This vessel purchase definitely needs it's own thread!
-----------------------------------------------
Edit: Turns out that the same company that built/refurbished the drawworks, NOS, makes off shore cranes of this type. The few pictures available seem to show the "Doug" crane as being one of the NOS offshore knuckle boom cranes (OC-K), but that it lacks the "Sealift Compensation System". The Shelia Bordelon had the swell compensating system on its crane, and testing by SpaceX must have shown that cost versus utility wasn't there so they opted for the straight knuckle boom system. Some links below for folks to explore:

https://www.nov.com/products/offshore-cranes

https://www.nov.com/-/media/nov/files/products/rig/lifting-and-handling-product-portfolio.pdf
Look at OCK section (pg 7) for some pics and stats.
Image is screenshot from brochure. Unfortunately, the SpaceX crane on Doug is painted white and blends into the background sky, so comparing pictures is difficult.
« Last Edit: 08/12/2021 02:18 am by AstroDave »

Online FutureSpaceTourist

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Re: SpaceX Purchases 2 New Ships: Bob and Doug
« Reply #9 on: 08/12/2021 02:06 pm »
https://twitter.com/julia_bergeron/status/1425820045163339776

Quote
Doug (still listed as Ingrid) is now docked in Fourchon, presumably to finish it's upgrades before coming to Port Canaveral.

Offline MTom

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Re: SpaceX Purchases 2 New Ships: Bob and Doug
« Reply #10 on: 08/12/2021 10:40 pm »
Stoked to see this!
-First, the fact that SpaceX is able to repurpose oil/gas assets for space operations saves mucho $$$.
-Second, length of vessels will enable higher surface speeds for quick trips to and from fairing recovery zones.
-Third, multipurpose vessel: both ASDS towing and fairing recovery.

Ack! Got a little excited, see edit below.
-Fourth, the crane! Those cranes are capable of loading/unloading in a seaway because they can adjust for swell variability. That means easier fairing recovery, materials transferred back and forth to the ASDS at sea (if needed), and maybe even dragon capsule recovery.

This vessel purchase definitely needs it's own thread!
-----------------------------------------------
Edit: Turns out that the same company that built/refurbished the drawworks, NOS, makes off shore cranes of this type. The few pictures available seem to show the "Doug" crane as being one of the NOS offshore knuckle boom cranes (OC-K), but that it lacks the "Sealift Compensation System". The Shelia Bordelon had the swell compensating system on its crane, and testing by SpaceX must have shown that cost versus utility wasn't there so they opted for the straight knuckle boom system. Some links below for folks to explore:

https://www.nov.com/products/offshore-cranes

https://www.nov.com/-/media/nov/files/products/rig/lifting-and-handling-product-portfolio.pdf
Look at OCK section (pg 7) for some pics and stats.
Image is screenshot from brochure. Unfortunately, the SpaceX crane on Doug is painted white and blends into the background sky, so comparing pictures is difficult.

Thanks AstroDave for the infos!

As I don't have any knowledge about cranes, I searched some explanation about Sealift Compensation System. This video explains it well.



Online FutureSpaceTourist

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Re: SpaceX Purchases 2 New Ships: Bob and Doug
« Reply #11 on: 08/14/2021 07:02 pm »
https://twitter.com/spaceoffshore/status/1426616621506965508

Quote
A new photo of Bob and Doug at the shipyard!

From this elevated view, you can see Bob (on the left) is much further behind in the construction process. The ship is missing a crane and the new elevated deck hasn't been painted white yet.

📸 Sent to me anonymously

Online FutureSpaceTourist

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Re: SpaceX Purchases 2 New Ships: Bob and Doug
« Reply #12 on: 08/15/2021 06:31 pm »
https://twitter.com/spaceoffshore/status/1426973410765283336

Quote
Holy Ship!

Look at Doug. What an absolute unit.

Photos thanks to Glen Cdag via @MarineTraffic. With thanks to @imrayn__ for spotting them.
https://www.marinetraffic.com/en/photos/of/ships/shipid:454774/ships

Offline alugobi

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Re: SpaceX Purchases 2 New Ships: Bob and Doug
« Reply #13 on: 08/15/2021 06:36 pm »
Doug is Ingrid.  Bob is who?

Offline Scintillant

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Re: SpaceX Purchases 2 New Ships: Bob and Doug
« Reply #14 on: 08/15/2021 07:25 pm »
Doug is Ingrid.  Bob is who?

Ella G. From the article in the original post:
Quote
You can compare the IMO Numbers and see that theyíre the same. Bob was Ella G and Doug was Ingrid. We are unsure about the prior owner, whether it was Edison Chouest Offshore or Island Ventures II LLC, but will update the article if we can verify.

Offline AstroDave

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Re: SpaceX Purchases 2 New Ships: Bob and Doug
« Reply #15 on: 08/16/2021 04:43 am »
  Strategically, the purchase and operation of these two ships speaks to a future involving not just fairings and ASDS platforms, but also servicing oil rig launch platforms with logistical support when they come online. Overall, just a great forward looking implementation of maritime operations.

Online edzieba

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Re: SpaceX Purchases 2 New Ships: Bob and Doug
« Reply #16 on: 08/16/2021 11:39 am »
It does not look like those cranes have the lift height needed to reach the platforms' decks.

Offline acsawdey

Re: SpaceX Purchases 2 New Ships: Bob and Doug
« Reply #17 on: 08/16/2021 12:30 pm »
It does not look like those cranes have the lift height needed to reach the platforms' decks.

Wouldn't it make more sense to use a crane on the edge of the platform for that?

Offline AstroDave

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Re: SpaceX Purchases 2 New Ships: Bob and Doug
« Reply #18 on: 08/16/2021 01:55 pm »
It does not look like those cranes have the lift height needed to reach the platforms' decks.

That is one of the reasons the platforms and other off shore installations have cranes on them. Hope image helps.

Online edzieba

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Re: SpaceX Purchases 2 New Ships: Bob and Doug
« Reply #19 on: 08/16/2021 02:14 pm »
My point was that these vessels do not have any specific features to delineate them as performing a platform support role. Indeed, previous vessels (MS. Tree and Ms. Chief) that were vessels originally built for that role - literally 'Platform Supply Vessels' - and have not been retained.

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