Tug Forum

Specialist Types Of Tug Boat => Ocean Going Tugs => : seahawk 1 March 30, 2011, 13:23:11

: Swire 'B' Class AHTS/UT-720
: seahawk 1 March 30, 2011, 13:23:11
I suppose I should quit hijacking Brian's thread and start my own.  Have been greatly inspired by Brian's work on his tug and can't stay away from the OSV site.  :-[
I ordered a hull/deck/and deck structures from www.kagelmacher-modellbau.de in February.
This should be arriving in the next few days.  52" LOA x 12" beam.  Been mostly researching while I wait and have to give credit to http://www.swire.com.sg/ as they have GA plans in PDF format for their entire fleet.  I have also found this site, courtesy of Andre Kagelmacher: http://b-o-s-berlin.de/
In starting this build, I hope to improve my own machining skills (which will never be that of Brian's) and learn more new skills along the way. There will be LOTS of photos posted with this build and I will be asking LOTS of questions  :)

Mike
: Re: Swire 'B' Class AHTS/UT-720
: tugs53 March 30, 2011, 17:34:57
Looking forward to it Mike :) :) :) :)
: Re: Swire 'B' Class AHTS/UT-720
: biggerstretch March 31, 2011, 20:55:43
http://b-o-s-berlin.de/ (http://b-o-s-berlin.de/)

nice bit of topless babes too .... :-*

 :D :D :D :D :D :D :D :D :D :D :D :D

: Re: Swire 'B' Class AHTS/UT-720
: Model Tug Man April 01, 2011, 04:52:01
Looking forward to your build as well Mike.
: Re: Swire 'B' Class AHTS/UT-720
: seahawk 1 April 01, 2011, 14:52:52
This is all I have to show for now.  Received my props from PropShop today.WOW. :)
Belt drives and 70mm Mobile Marine Korts, might be enough to power this beast.

Mike

: Re: Swire 'B' Class AHTS/UT-720
: chipchase April 03, 2011, 12:18:18
Good quality props Seahawk I have used this company’s products on a few of my builds ,exhalent quality. I have looked at your photo of your motor drive system and correct me if I am wrong, It looks like the MFA 800 or the 850 belt drive set up. If I am right on my assumption I have used this setup before and was disappointed with the performance of these units (and very noisy) . I fitted them into my Flying  Spindrift build (she is only 40in long). I removed them after her second  sea trials and fitted direct drives. Your new build is a big model and I do not think that the units you have chosen will be powerful enough for her.
: Re: Swire 'B' Class AHTS/UT-720
: seahawk 1 April 03, 2011, 13:42:11
You are correct, they are 850's.  I had these and thought to give them a try.  These are actually very quiet, but believe they would perform better direct and save the belts for something else.
Been making the pivots for my beckers today, will post pics later.

Mike
: Re: Swire 'B' Class AHTS/UT-720
: chipchase April 03, 2011, 14:47:12
I have used the same motors direct drive Mike and as you say they are quiet and have a lot of torque , you should not have any problems with them on direct drive. looking forward to your Becker ruder build.   
: Re: Swire 'B' Class AHTS/UT-720
: Type212 May 09, 2011, 00:37:25
Did you received hull for UT 720? How it looks, quality is OK? I an thinking about this ship too.Are they selling set of pitures?? How long is delivery time?
: Re: Swire 'B' Class AHTS/UT-720
: seahawk 1 May 09, 2011, 13:15:12
Did you received hull for UT 720? How it looks, quality is OK? I an thinking about this ship too.Are they selling set of pitures?? How long is delivery time?

At this point, I might have to suggest looking elsewhere.  These parts 'supposedly' shipped 3/11/11 and I have not seen them yet.
I have received no response to several inquiries about what method it was shipped, DHL/FEDEX, etc and have never received a tracking number.
I think I am out $800.00.

Mike
: Re: Swire 'B' Class AHTS/UT-720
: Type212 May 11, 2011, 11:24:59
So I know name of company, where I will NOT purchase hull for UT 720. Is safer to build it by myself, as spend a lot of money and received nothing.
: Re: Swire 'B' Class AHTS/UT-720
: Fatcat May 11, 2011, 12:44:41
I heard about that!

Shocking to say the least. I feel for you my friend. I was also looking at the Swire tugs and was going to scale up to 1/24th but decided to save this build for a later time in my life as it would to say the least, make my parents VERY unhappy. The plans available on their site seem more than enough for me, some idiot who wants to build a big tug.

I really hope you get sorted with them sods  angry

Dan

: Re: Swire 'B' Class AHTS/UT-720
: chipchase May 11, 2011, 13:09:47
Sorry to here about the long wait Mike, but I would not give up yet. I have enquired about buying a hull from Canada and have been told it would take about 9 weeks to get to the UK. But I certainly think that the company that you purchased  the hull from should have responded to your enquiries, this forum has a lot of members that will be very interested in the outcome of this.
: Re: Swire 'B' Class AHTS/UT-720
: seahawk 1 May 11, 2011, 13:47:45
I haven't given up yet, and have also considered a possible language barrier.  Though this did not seen to be an issue when paying, I don't think it to confusing to ask what method/listed and shipping/tracking#.  I am more concerned that it was misplaced/damaged/destroyed if the shipment was caught in one of the storms in the midwest.
If it was a question of non-stock items, I could understand, however, everything ordered was 'in stock-ready to ship' at time of payment.  Patience is a virtue.......... ???

Mike
: Re: Swire 'B' Class AHTS/UT-720
: Adam66 May 12, 2011, 08:48:11
I think its an reliable firm, I have the Fairplay kit of this firm. Things can take some while, but I never heard off anyone who didn't got what they ordered.
I know they are very busy at the moment for commercial customers, so maybe that's a part of the delay.
I don't think you "lost"$ 800,=
Maybe I will meet Andre Kagelmacher next week during a meeting in Germany.
If he's there I will ask him about this UT720
: Re: Swire 'B' Class AHTS/UT-720
: seahawk 1 May 12, 2011, 13:02:48
I have never doubted that Andre runs a very respectable 1st class operation. I would not have done business with him otherwise.  Whomever put a 'bug' in his ear about this problem, I want to say thank you!  I received this message today from Andre:

Dear Mr. Winter,

I heard on a forum you have not received the goods. Why they do not have
Mail written. No matter.

Today, I have now done with DHL consultation and experience the goods in the U.S. was badly damaged and the sender (ie us) has been returned. It will probably be something like on it. The insurance covers the damage.

Today I discussed with my staff that we produce over the coming weekend, all the parts for you once again and sending it to them on Monday.

We will send the goods by DHL Air Express, the cost, DHL.
The package will be delivered within one week. I will send you the Träking number.

I am very sorry you had to wait so long. As compensation, I'll grab you some more parts in the package.


So, thanks to my silent friends here.
Mike
: Re: Swire 'B' Class AHTS/UT-720
: seahawk 1 May 24, 2011, 13:11:12
If anyone here can translate English to German, Please PM me.  I need some assistance in responding to a request from Andre.
Thanks,
Mike
: Re: Swire 'B' Class AHTS/UT-720
: Adam66 May 25, 2011, 09:08:52
Sent the German written mail to me, and I will see what I can do for you
: Re: Swire 'B' Class AHTS/UT-720
: seahawk 1 May 27, 2011, 14:51:24
Adam, please let Andre know, IT IS HERE!  :) :)

Was it worth the wait and all that all parties had to go through to get it here, ABSOLUTELY!  

: Re: Swire 'B' Class AHTS/UT-720
: Fatcat May 27, 2011, 21:48:00
Would love one of these but they are too small. I only work to a min of 1/24th scale.

I'm following this with great interest so please post loads of build photos!

Dan
: Re: Swire 'B' Class AHTS/UT-720
: seahawk 1 May 28, 2011, 11:52:01
I have spent the morning going through the vast assortment of parts I received.  The CNC work is mind boggling.  Yes, there is a lot of 'pre-fab' done, there is still a tremendous amout of building ahead.
More pics of the parts.  The decks are milled with the slots to align the walls/cargo rails/etc. All windows are precut, (have to make the frames though). Thrusters haven't arrived yet- 2-bow 1-stern.

: Re: Swire 'B' Class AHTS/UT-720
: Type212 May 29, 2011, 11:46:20
Everything looks beautifull. How is done hull?? It is epoxy, or polyester resin?? Polyester smells. Material of the hull is cloth, or mat?? Thanks for info, I am ready to purchase this ship too.
: Re: Swire 'B' Class AHTS/UT-720
: seahawk 1 May 29, 2011, 14:48:34
The hull is polyester/cloth.  VERY strong and light. The supplied disc shows how he made the master.  The hull has no marks for thrusters, ports, etc, but all this is shown clearly on the plans.  3 sheets of plans that include winches, masts.  The deck hatch is supplied pre-cut. *Note, they do not show the cargo deck, but I asked and one was made up for me.  Plenty of room inside for any conceivable function. If one to purchase the entire kit, it is well worth the $$. 
: Re: Swire 'B' Class AHTS/UT-720
: Type212 May 29, 2011, 23:28:45
Thanks for info, I will purchase this hull.
: Re: Swire 'B' Class AHTS/UT-720
: seahawk 1 May 31, 2011, 16:08:39
A few more shots before I start cutting and fitting.  Andre sent me a pair of Kort nozzles that he provides with this boat, but I already had some from Mobile Marine. Both are for 70mm props.
There is ALOT of room inside this hull as shown with 2 12v 12ah SLA batteries. 

: Re: Swire 'B' Class AHTS/UT-720
: Type212 June 01, 2011, 08:40:52
Quality of the hull looks little bit POOR. I do not know, what is for this 180 euro.
: Re: Swire 'B' Class AHTS/UT-720
: Type212 June 01, 2011, 08:44:34
Looking on pictures of the hull, I starting ahain thinking about my own hull for this ship. Quality is not there. Prices of superstructure parts goes up as crazy.
: Re: Swire 'B' Class AHTS/UT-720
: Fatcat June 01, 2011, 08:50:50
Quality of the hull looks little bit POOR. I do not know, what is for this 180 euro.

I'm no expert in GRP however the last photo uploaded, the bow hull thickness looks very thin indeed. I personally would lay more GRP on top of this to add some strength and thickness. You could of built the hull yourself using the plans available on swires site.
: Re: Swire 'B' Class AHTS/UT-720
: Navy2000 June 01, 2011, 13:37:53
From what I see in the photos they had a poorly built master hull as well. I have been building master hulls for another company and they are much smoother than what that hulll looks to be. If you don't build a fine master hull then the end porduct will show it in the end. I would also agree the hull looks to be thin.

Duane
: Re: Swire 'B' Class AHTS/UT-720
: seahawk 1 June 01, 2011, 13:48:30
The hull is a bit thinner than I expected, or am used to.  There is no gelcoat, just a very lite coat of white primer so the light shows through very well, (well lit shop).  Granted, I have purchased higher quality hulls, but this one I have no complaints about.  As for the price of the plastic parts...plastic itself has gone way up and the CNC work is something to be seen up close.  It's money well spent, and will build into a very nice boat.
Mike
: Re: Swire 'B' Class AHTS/UT-720
: seahawk 1 June 05, 2011, 13:11:05
Finally got a little progress made, now that the weekend is here and raining...again  ???
Milled the notches in the nozzles for the rudder shoes, and built up some support platforms for the nozzles. One side about where I want it, then do the next side and fit some shaft supports.

: Re: Swire 'B' Class AHTS/UT-720
: Type212 July 23, 2011, 00:54:21
Hi Mike, so how it goes on your UT 720?  I am still waiting for my hull, there is vaccation ;-(
: Re: Swire 'B' Class AHTS/UT-720
: seahawk 1 July 23, 2011, 08:52:39
I have actually done nothing on it as I am still waiting for the long backordered bowthrusters.
In the meantime, after parting with a few 'will never get to' projects, I made an addition to the shop.
Found a HF 7x10 lathe at a VERY reasonable price on ebay, then upgraded it to a 7x14 and some 'toys' from little machine shop.  Since I have several winches to build, this was a nessecity ??? :)



: Re: Swire 'B' Class AHTS/UT-720
: seahawk 1 March 31, 2016, 11:31:42
After a long time dealing with 'stuff', I finally got re-energized to attempt this once again.  I did lose interest after not being able to receive several parts that I ordered and were never delivered.  With the advent of 3-D printing, I was able to recently acquire several parts and renewed my interest in this build. I was able to obtain a pair of 3-D printed Becker rudders as well as several deck fittings.  I am just finishing up the rudder/Kort installation, have built wood frames to support the decks, and for additional inspiration, received a set of graphics I had custom made.  More will follow.

Michael
: Re: Swire 'B' Class AHTS/UT-720
: seahawk 1 March 31, 2016, 11:37:32
More
: Re: Swire 'B' Class AHTS/UT-720
: seahawk 1 April 01, 2016, 18:49:53
Rudder bases installed and stern thruster fit, ready for final attachment.
: Re: Swire 'B' Class AHTS/UT-720
: seahawk 1 April 01, 2016, 18:53:02
Links for the 3-d parts I have found.

https://www.shapeways.com/shops/etapjes3dshop

https://www.shapeways.com/shops/modelshipyard
: Re: Swire 'B' Class AHTS/UT-720
: seahawk 1 April 02, 2016, 15:53:26
Cap rails made from 1/8" plastic tubing, split open with a dremel cut-off wheel.  Perfect fit.
: Re: Swire 'B' Class AHTS/UT-720
: seahawk 1 April 03, 2016, 20:35:15
I am still somewhat skeptical as to the quality of the hull, as it was obviously built with a 'twist' in it.  I do have to say though, as thin as it is, it is one tough hull.  It started stiffening up as I glued in the rear thruster, and with the inner framework temporarily screwed in, it is quite stiff.  Still, I am going to add some CF cloth to the floor and a 2" strip up the bow.
: Re: Swire 'B' Class AHTS/UT-720
: tug-arlyn-nelson April 04, 2016, 21:18:08
I wonder where "cap rails", got started.  Too me the cap on the rail is more properly called the rail cap, as that is what it is.  I was a shipwright for nearly 30 years and have heard both ways, but to me its a rail cap, not a cap rail. Just a random thought, not a criticism.
: Re: Swire 'B' Class AHTS/UT-720
: seahawk 1 May 14, 2016, 14:58:55
Would appear that 20 lbs. of batteries is not 'quite' enough to get to the waterline.  Will end up running 3 12v12/ah sla's in parallel for usable weight, then see how much dead weight I have to add.  This is only 2 batteries-all I have atm.
: Re: Swire 'B' Class AHTS/UT-720
: sea monkey May 15, 2016, 11:43:36
By the look of that waterline it's going to be pretty heavy when ballasted. Any thoughts on how you will launch it?
: Re: Swire 'B' Class AHTS/UT-720
: seahawk 1 May 15, 2016, 17:30:19
Batteries and ballast will be removable for transport.  Have some hull issues at the moment I am attempting to correct.  The hull had been 'patched' for some reason by the manufacturer, and I discovered during the initial float test I had a leak.  One small one at a shaft exit-my fault/easy fix-but water was coming in the port side of the hull rather rapidly.  The 'patch' was more of a band-aid, peeled off and resanded the hull and will have to recoat the entire inside with epoxy and light cloth as I also found several tiny pinholes that go clear through the hull.  1 step forward, 3 steps back.
: Re: Swire 'B' Class AHTS/UT-720
: seahawk 1 May 19, 2016, 17:53:47
All glass repairs are completed.  I went ahead and sanded and recovered both sides-inside with medium fiberglass 3" tape and epoxy.  Nice and tight/strong now.  3rd battery arrived, so have all 3 batteries=30+lbs. Also picked up some additional ballast supplies-1 1/4" PVC pipe/caps and a 25 lb. bag of #9 lead shot.  Getting closer.
: Re: Swire 'B' Class AHTS/UT-720
: seahawk 1 May 23, 2016, 17:49:07
This will take about 40 or so lbs to obtain a good waterline. The 3 main batteries + an additional 10 lbs does a good job.  After about 20 minutes in the 'test tank', another leak popped up.  Another separation between outer skin and inner glass.  Repairs underway, will find out in a few days.
: Re: Swire 'B' Class AHTS/UT-720
: tug-arlyn-nelson May 23, 2016, 18:45:07
What type of layer is over the glass? Appears to be quite a gap between the glass and the covering. It looks like a plastic coating as opposed to gel coat.
: Re: Swire 'B' Class AHTS/UT-720
: seahawk 1 May 23, 2016, 19:03:13
I have never been able to determine exactly what material this hull is made from.  When I received it, I noted how thin it was and somewhat flexible.  I think some of my early posts show how thin the hull is.  What ever the inside is , is some type of fabric, not like anything I have seen and very tough, and hard to sand.  It took 8+ months to get this, the 1st shipment was 'destroyed' by shipping, according to the seller.  I have to think now, that the original 'destroyed' hull was somewhat repaired and re-shipped to me.  That is the only reason I can see for all the repairs to the port/center side of the hull.  I do know the hulls are made R&L half and then assembled, but I could not tell you what type of 'fabric' was used in the original construction.  Once it is sanded very well, West systems epoxy works great.  The outer, white 'skin' appears to be an epoxy as it too, is very hard.