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Started By
Message
re: UPDATE 265 Class Liftboat capsizes . New survivor story. Page 77
Posted on 4/14/21 at 6:10 pm to Bigfishchoupique
Posted on 4/14/21 at 6:10 pm to Bigfishchoupique
quote:
Look close do you see the white lettering in front of the leg. That’s the vessel name.
was just going by what a guy at Seatrax told me.
This post was edited on 4/14/21 at 6:19 pm
1
Posted on 4/14/21 at 6:13 pm to SOLA
quote:
what a guy at Seatrax told me.
Posted on 4/14/21 at 6:15 pm to tgrbaitn08
Never seen a liftboat with a crane on the leg, but zooming in it looks like the tower just extends up with the crane ring. I can't imagine the crane actually being connected to the leg unless they have gear motors also.Gear rack to gear rack (leg diameter) dimensions are critical as well as tower ovality.
If you zoom in enough you can see some diagonal braces tieing into the top platform.
If you zoom in enough you can see some diagonal braces tieing into the top platform.
This post was edited on 4/14/21 at 6:18 pm
Posted on 4/14/21 at 6:19 pm to CootKilla
quote:
can't imagine the crane actually being connected to the leg
That would be almost impossible
Don’t they pull those legs for inspections and repairs? Would the crane being connected be a pain in the arse?
Posted on 4/14/21 at 6:21 pm to tgrbaitn08
Well, those are their cranes.
Posted on 4/14/21 at 6:21 pm to tgrbaitn08
quote:
I'm pretty sure Seatrax is the only playa in the big boy gam
Pretty sure oil states had the cranes on the Montco boats, maybe not anymore.
Posted on 4/14/21 at 6:24 pm to SOLA
quote:
Well, those are their cranes.
I’m aware. However that leg sticking out the water isn’t the stern leg. It’s the port bow leg. No biggie bro.
I’m just hoping they can recover all the bodies alive.
Posted on 4/14/21 at 6:24 pm to tgrbaitn08
quote:
Wasnt trying to take a shot at you..Im just curious as to what could have happened to the crane
Idk man...I'm not familiar with that design to speak reliably on it but the crane can't just free float around the leg and it's obviously not fixed to it either. How would they swing it otherwise? That bitch is mounted somewhere somehow.
And if you've ever saw a crane pedestal up close there's mounting studs every 4 inches, depending on diameter and capacity obviously.
Posted on 4/14/21 at 6:26 pm to tgrbaitn08
They don't pull the legs for inspections, that would be an outrageous cost. They do have amanway at the top with a ladder but I seriously doubt anyway goes down there.
Posted on 4/14/21 at 6:27 pm to Sid in Lakeshore
quote:
Do you know which contractor?
Talked to a former client of mine this morning because this tragedy reminded of them. They rent tools and equipment with operators so of course I wanted to check in.
If I heard him correctly, it was Cardinal Coil Tubing.
Posted on 4/14/21 at 6:28 pm to GeauxTigers0107
Look at the pics on first post page 20, the towers extend up for the crane, no crane pedestal with 2000 bolts.
This post was edited on 4/14/21 at 6:56 pm
Posted on 4/14/21 at 6:33 pm to GeauxTigers0107
quote:
but the crane can't just free float around the leg and it's obviously not fixed to it either. How would they swing it otherwise? That bitch is mounted somewhere somehow.
And if you've ever saw a crane pedestal up close there's mounting studs every 4 inches, depending on diameter and capacity obviously.
Yes I’m very aware.
So there’s a difference between a ringer crane and a pedestal mounted crane. These were ringer cranes.
This post was edited on 4/14/21 at 6:34 pm
Posted on 4/14/21 at 6:35 pm to CootKilla
quote:
They don't pull the legs for inspections, that would be an outrageous cost. They do have amanway at the top with a ladder but I seriously doubt anyway goes down there.
They def pull the pads. I thought they pulled legs for some of the smaller LB’s.
Posted on 4/14/21 at 6:49 pm to GeauxTigers0107
quote:
Idk man...I'm not familiar with that design to speak reliably on it but the crane can't just free float around the leg and it's obviously not fixed to it either. How would they swing it otherwise? That bitch is mounted somewhere somehow.
And if you've ever saw a crane pedestal up close there's mounting studs every 4 inches, depending on diameter and capacity obviously.
Gravity holds the crane down on a turntable. A swing motor mounted below and besides the turntable engages a large gear at the base of the crane to make it swing.
Conventional crawler cranes have a center pin and hook rollers which holds everything to the turntable.
This crane rotated on a turntable that was mounted to a hollow turret that the legs ran through. The turret acted as the center pin. Very strong. And gravity holds the crane down
I presume those bulges you see on the turret are some type “bushing lands”.
Cranes are all about gravity and balance created by counterweights.
It’s all about the counterweights.
This post was edited on 4/14/21 at 6:54 pm
Posted on 4/14/21 at 6:51 pm to gizmothepug
quote:
The 2nd time I ever went in the gulf I had to swing rope, I thought they were bullshiting me a first. That is dangerous as hell and I don’t miss it one bit.
frick a swing rope. The most danger I’ve ever felt offshore was, by far, was trying to swing rope from a “+10” on a satellite that was really like 5-6 feet above the water, onto a boat where the tires came up to my waist. I remember thinking “why the frick would I even try to do this?” And then remembering there was literally no other way off the platform unless I wanted to swim.
My first time out, I took a crew boat to MP41. Crane operator swung the man basket into the side of a connex box on the way up. Then I had the pleasure of learning how to swing rope to the satellites the same day. While I was a little nervous the first time out on a helicopter, I was mostly just glad I didn’t have to go anywhere on a fricking boat.
Posted on 4/14/21 at 6:54 pm to Bigfishchoupique
So, basically the gear motor tower extended up and was the "crane pedestal"?
This post was edited on 4/14/21 at 6:55 pm
Posted on 4/14/21 at 6:57 pm to Bigfishchoupique
quote:
Tgrbaitn. Why do you think the pad is not fully retracted into its nest?
The gears/mechanism that move/secure the legs was probably trashed somewhere between the vessel being underway and where it sits now.
Posted on 4/14/21 at 6:57 pm to tgrbaitn08
We have pulled pads that were damaged but never for inspection. Not saying it isn't done.
Posted on 4/14/21 at 6:58 pm to CootKilla
quote:
So, basically the gear motor tower extended up and was he "crane pedestal"?
I think so. I am probably using the wrong word calling it a turret. Gear motor tower sounds more correct.
The leg goes through the gear motor tower.Correct?
I think you just taught me something.
Posted on 4/14/21 at 7:02 pm to CootKilla
The only thing that was left on that port bow leg was the walkway platform
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