Topic: Q & A - Blue Marlin - Heavy lift semi submersible ship (Read 119657 times)

Umi_Ryuzuki · « **Reply #150 on:** February 01, 2009, 04:52:04 am »

What you need are the Smit tugs helping to place this on the Deck of the Blue Marlin...

North Cormorant Off-Shore Oil Rig, Just modify it for floats...

boatmadman · « **Reply #151 on:** February 01, 2009, 05:59:21 am »

Umi, stop it, I have enough to do already!

Umi_Ryuzuki · « **Reply #152 on:** February 01, 2009, 06:43:23 am »

Quote from: boatmadman on February 01, 2009, 05:59:21 am

Umi, stop it, I have enough to do already!

andyn · « **Reply #153 on:** February 01, 2009, 12:31:27 pm »

I'll build it for you

dan · « **Reply #154 on:** February 01, 2009, 07:05:26 pm »

wow

looking good

cant wait to see it on and under the water

andyn · « **Reply #155 on:** February 18, 2009, 05:53:17 pm »

I was wondering where the dog went from the first post...

DickyD · « **Reply #156 on:** March 05, 2009, 09:07:49 pm »

Wow, thats an improvement Ian. Very nice.

Umi_Ryuzuki · « **Reply #157 on:** March 05, 2009, 09:39:47 pm »

It's really starting to perk up.
The railings do a lot to give the model a sense of scale.

I may have found a space to build mine... We'll see. It is a space
such that I could start a couple of projects and store them.

andyn · « **Reply #158 on:** March 05, 2009, 11:02:07 pm »

Great stuff there, let's see it at Wicksteed

You can come get your burger

boatmadman · « **Reply #159 on:** March 08, 2009, 02:00:14 pm »

Umi,

If you do decide to build one, let me know, there are a few things I would do differently to the way I did it.

Ian

Umi_Ryuzuki · « **Reply #160 on:** March 08, 2009, 06:47:07 pm »

Quote from: boatmadman on March 08, 2009, 02:00:14 pm

Umi,

If you do decide to build one, let me know, there are a few things I would do differently to the way I did it.

Ian

It isn't about deciding to build one. It has been about time and space.
You know how much research I have on these ships as far as referance images, and line drawings.

What has come up, is that a local, public, workshop is opening, and they have asked me to help supervise
the shop four days a month. I will be hanging about a wood shop, metal shop, and sewing shop, with
more tools to yet to arrive. So I figure that instead of watching people work on projects I can do a couple
of my own on the side...

Timing... I hear there is a laser cutter that is supposed to land in the shop soon.
If I can cut the frames from acrylic, how the heck would I sheet to it?

Ian, your experience and suggestions are most certainly welcome.

colin-stevens · « **Reply #161 on:** March 08, 2009, 08:58:41 pm »

Jeez, some people have alll the luck!!!!!!
would epoxy fix to acrylic. worth a try. then you could balsa sheet/ply/whatever you fancy.
super glue would work, sure of it.
good luck
colin

boatmadman · « **Reply #162 on:** March 08, 2009, 11:03:55 pm »

Umi,

First thing I would say is - be prepared to get frustrated at times!

Next - build it at least 2m long. I was lucky to be able to fit all the gizmo's in mine, at 1.4m.

Ian

Navy2000 · « **Reply #163 on:** March 19, 2009, 07:29:48 pm »

Excellent build going here. Look for a PM from me.

Duane

dan · « **Reply #164 on:** March 20, 2009, 09:03:40 pm »

fantastic!

the super structure looks superb

are the cranes kits or scratch from drawings?

DickyD · « **Reply #165 on:** March 20, 2009, 09:48:04 pm »

Looking great Ian.

andyn · « **Reply #166 on:** April 09, 2009, 05:17:30 pm »

Excellent stuff

All you need now is to do that Smit Houston and we can put on a bit of a show

boatmadman · « **Reply #167 on:** April 09, 2009, 05:18:16 pm »

Thats on the slips Andy!

dan · « **Reply #168 on:** April 09, 2009, 05:18:36 pm »

brilliant mate, should look good on the water!

andyn · « **Reply #169 on:** April 09, 2009, 05:35:15 pm »

Great stuff, if you're coming to Wicksteed or Llanberis we can do a show with the pair of the Smit tugs

cos918 · « **Reply #170 on:** April 09, 2009, 11:05:25 pm »

Hi Ian
She is looking fantastic you have done a top job there.

John

Niall · « **Reply #171 on:** April 14, 2009, 10:45:58 am »

Just found this thread, very interesting and impressive build.

One comment though, the warship photograph on page 2 is not the USS Cole as others have said. It is the USS Samuel R. Roberts FFG58, an Olvier Hazard Perry Class frigate.

andyn · « **Reply #172 on:** April 14, 2009, 03:19:59 pm »

My setup in the Smit tug if you want it to be simalar to mine is:

2x 140 motors

Ripmax Xtra Air 14 ESC (you really don't want to go backwards with these tugs)

Battery from a Hobbyzone ZigZag, of which I have a spare if you want one.

This lot brings it down to the perfect waterline.

boatmadman · « **Reply #173 on:** April 17, 2009, 09:19:08 pm »

Right then, help needed.

I have been trying to get Marlin to do what it is designed to do, sink and lift a load out of the water.

This is how I have tried so far, for a lift of about 3kg, this leaves some reserve buoyancy in the pumped tanks for trimming:

1. Put approx 7kg of lead ballast in the bottom of the free flood tanks, evenly along port and starboard sides

2. Fill the pumped ballast tanks

3. Add some buoyancy in port and starboard free flood tanks, placed so that it sits just under the deck, then add a little more lead to get to submerged load line.

4. Fill a plastic toolbox with 3l water and place on the deck - boat sinks further!

5. Pump out tanks and Marlin rises, but not to the waterline - she is too low.

I think it may be because the load I add sits on the deck when she is submerged, whereas it should really be floating above the submerged deck prior to pumping out.

Is that the problem?

Ian

AlanP · « **Reply #174 on:** April 17, 2009, 09:42:20 pm »

perhaps I am missing something here Ian, but after lifting a load wouldn't the real boat sit lower in the water.

Alan

News:

Author Topic: Q & A - Blue Marlin - Heavy lift semi submersible ship (Read 119657 times)

Umi_Ryuzuki

Umi_Ryuzuki

andyn

dan

andyn

Umi_Ryuzuki

andyn

Umi_Ryuzuki

Navy2000

dan

andyn

dan

andyn

andyn

AlanP