Quote from: Karlman on 12/24/2014 08:49 pmQuote from: Nomadd on 12/24/2014 02:25 pmQuote from: IslandPlaya on 12/23/2014 11:32 pmThe extensions don't fold up. It is clear.Docking at the bay, they don't fold. They're probably safety nets then. If the Booster is only guaranteed to stay within the outer circle and people might have to be that close to the edge, they'd be required.I'm guessing they are boarding ramps basically?We see people standing on them in some of EER's canon pics, and they are horizontal, not vertical.I'm guessing the deck "wings" which horizontal deck structure would not stand up well to repeated bumping into of the pier, or onto the top of the dock. Ships, and barges for other goods such as Grain or Coal usually have sides that vertical, and more conducive to being "tied up" to a pier.We can see from the cruise ship web cam that the barge is kept from direct contact with the pier/dock, thus creating a gap.The extensions on the side are outside of the low perimeter retaining wall and will be the only place that people will be able to stand near the central deck once the liquid polymer sticky trap material has flooded the main part of the deck within the yellow retaining wall. You can see over the course of the day that they have begun to flood the deck with the sticky trap material. This morning it was only visible as a small puddle near the point of application near the right rear corner but as the day has gone on I've been watching the puddle of sticky trap material get larger and larger though it still hasn't covered the entire surface of the deck within the yellow wall. I wonder how deep they plan to install the stuff? I wonder if they are using the slow, medium, or fast version? Both the fast and medium curing versions have a solvent smell that stinks to high heaven, which is probably why the cruise ship left. Eer, did you smell it? The application and curing should be done by the first week of January for the landing but they never could have had it installed and cured by the launch last week. Maybe that's the real reason they delayed the launch.?.Mark
Quote from: Nomadd on 12/24/2014 02:25 pmQuote from: IslandPlaya on 12/23/2014 11:32 pmThe extensions don't fold up. It is clear.Docking at the bay, they don't fold. They're probably safety nets then. If the Booster is only guaranteed to stay within the outer circle and people might have to be that close to the edge, they'd be required.I'm guessing they are boarding ramps basically?We see people standing on them in some of EER's canon pics, and they are horizontal, not vertical.I'm guessing the deck "wings" which horizontal deck structure would not stand up well to repeated bumping into of the pier, or onto the top of the dock. Ships, and barges for other goods such as Grain or Coal usually have sides that vertical, and more conducive to being "tied up" to a pier.We can see from the cruise ship web cam that the barge is kept from direct contact with the pier/dock, thus creating a gap.
Quote from: IslandPlaya on 12/23/2014 11:32 pmThe extensions don't fold up. It is clear.Docking at the bay, they don't fold. They're probably safety nets then. If the Booster is only guaranteed to stay within the outer circle and people might have to be that close to the edge, they'd be required.
The extensions don't fold up. It is clear.Docking at the bay, they don't fold.
What sticky material?? Source?
What sticky trap material, can you elaborate? I think we are just seeing rain water, like we see at the dock next to the ASDS.
What sticky material??? Just look at the stuff, there must be hundreds of gallons of it there! Probably MIL-STD-1394-BS-4/1...
Quote from: Mader Levap on 12/24/2014 07:48 pmI still think there is grid. This photo shows that whole contraption on top of barge is half-translucent - difference between "wings" (showing water under it) and main body (showing barge under it) are clearly visible.If there is no grid, how this difference is explained?Optical illlusion.Maybe what happened is that SpaceX didn't bother to repaint the old black paint on the main barge deck. But when they added the wings, obviously those new wings had to be painted, black to match the original black paint on the deck. (...) But all you're seeing is the difference between old paint on the original deck and new paint on the wings.
I still think there is grid. This photo shows that whole contraption on top of barge is half-translucent - difference between "wings" (showing water under it) and main body (showing barge under it) are clearly visible.If there is no grid, how this difference is explained?
Well this image shows pretty conclusively that it is not a grid, or if it is then the holes are smaller than the size of the H2O molecule
Quote from: Lars-J on 12/24/2014 11:28 pmWhat sticky material?? Source?The source seems to be near the corner of the deck that is closest to the shore and furthest from the cruise ship. What sticky material??? Just look at the stuff, there must be hundreds of gallons of it there! Probably MIL-STD-1394-BS-4/1 since it appears to be clear. Heaven help any pelicans or sea gulls that land in it.Mark
The world's largest glue trap?
Okay, let's touch on nautical design; in general, seagoing craft prefer to keep the sea on the outside, rather than on the inside, or on top. The latter is due to to weight issues; especially in a storm, you don't want extra mass topside. (this is why ships have to be mindful of icing). Think of that barge in high seas if there's no way to rapidly drain that deck; a wave hits, flooding the deck. That yellow I beam looks to be about two feet high, so that gives us a possibility of two feet of water. ballparking the deck area at 230x170 feet, so 78200 gallons of water, at 8.55 pounds per, for a mass of 334 tons. And worse than just mass, it's mass on the move.
I'm the only one to see rows of holes on the deck?Look left of the red lines.
Quote from: cambrianera on 12/25/2014 07:49 amI'm the only one to see rows of holes on the deck?Look left of the red lines.Yes, I do wonder why we don't see them also in other pictures. Especially those from directly above provided by SpaceX.
It seems to me they would have built the whole deck surface to their needs and it would not be the original deck. Would the original barge deck that flat without any surface structures?
It's not too likely they're going to land a rocket on the thin steel of the main deck unless they're trying to sink the barge. That deck is a main structural component and you really don't want to weaken parts of it by heating it with an M1D.
Quote from: cambrianera on 12/25/2014 07:49 amI'm the only one to see rows of holes on the deck?Look left of the red lines.That answers the question of how they will tie the vehicle onto the Barge