Tug Forum

Specialist Types Of Tug Boat => Off Shore Support Vessels => : chipchase October 20, 2012, 12:30:29

: ESVAGT CAROLINE
: chipchase October 20, 2012, 12:30:29
Hi all this is my latest project the Esvagt Caroline.                                               
: Re: ESVAGT CAROLINE
: chipchase October 20, 2012, 13:14:56
I started this build quite some time ago but decided to put her on hold while I built the Svitzer Maltby. Esvagt Caroline is a C class rescue vessel 1:40 scale. The hull measures 43in long with a beam of 12in
The hull for this build was purchased from Orion Mouldings.  http://www.orionmouldings.com/modelboats.htm
: Re: ESVAGT CAROLINE
: Sudbury II October 20, 2012, 19:12:47
Going to be a beauty....I just know it!

Right on Brian cool
: Re: ESVAGT CAROLINE
: tugnut October 21, 2012, 06:29:09
That is one big boat you do like a challange  Brian,  cool
: Re: ESVAGT CAROLINE
: Model Tug Man October 22, 2012, 07:01:38
Looking forward to your build.

If you start working out now you may be able to lift her when she is completed.
: Re: ESVAGT CAROLINE
: chipchase October 23, 2012, 12:57:37
As always on a model the first job is fitting props and shafts plus bow thrusters, on this vessel she has Zdrives and two bow thrusters. Here is a photo showing the stern of the Capella in dry dock, the Caroline has the same type of drive system.
: Re: ESVAGT CAROLINE
: chipchase October 23, 2012, 13:16:24
Here are a few photos showing how I made my drives for the Caroline.
: Re: ESVAGT CAROLINE
: zeevaart1 October 23, 2012, 13:26:29
Hello chipchase, This is a beautiful project you're building there.
Nice work with the brass.
: Re: ESVAGT CAROLINE
: chipchase October 23, 2012, 13:43:14
Thanks Zeevaart1, here is a photo showing the drive after fabrication.
: Re: ESVAGT CAROLINE
: zeevaart1 October 23, 2012, 23:46:19
Looking very good. cool
What stuff do you use for modeling.
epoxy, polyester.
And how do you make the model, do you use a mold.
: Re: ESVAGT CAROLINE
: Fatcat October 24, 2012, 03:21:10
I wish I could make drives like that....  :'(

Excellent project so far, looking forward to seeing the future updates!

Dan
: Re: ESVAGT CAROLINE
: chipchase October 24, 2012, 13:17:58
Hi Cor, the stuff I used for the fabrication was easy sand and no I donít have a mold.

Have a go at making the drives Dan, the first set that I made took quite a bit of thought but it gets easier.  :)

: Re: ESVAGT CAROLINE
: Fatcat October 24, 2012, 13:24:05
I need a lathe and milling machine first! Then a set of plans, and then some talent.  ???

Dan

: Re: ESVAGT CAROLINE
: chipchase October 24, 2012, 13:59:02
Yes Dan I agree with the lathe but I donít have a milling machine. Itís on my wanted list.
: Re: ESVAGT CAROLINE
: chipchase October 24, 2012, 14:27:26
This is the third model that i have built with Z drives and on each one I have used different methods for driving these units. The first one I used belt drives these worked OK but I thought that this could be improved. When I built my Svitzer Maltby I managed to obtain the headgear from two graupner drive units these work great I am very pleased the way that she performs. Unfortunately itís not every day you come across old graupner headgear units. Quite some time ago I read a thread on the rcgroup forum about headgear drives and decided to have a go at building this type of headgear for the Caroline. Here are some photos showing the units.                       
: Re: ESVAGT CAROLINE
: chipchase October 24, 2012, 14:30:03
Three more showing the headgear.
: Re: ESVAGT CAROLINE
: zeevaart1 October 24, 2012, 23:02:04
That looks nice.
But my experience with scale 1:25, is that all heavy brass.
I prefer to use a heavy belt drive.
Also, the contact with the belt and toothed belt drive is bigger.
Also less wear and force on the gears.
But for smaller drives it works perfectly.
But for belt drives you need more space.
: Re: ESVAGT CAROLINE
: Capt.Towline October 25, 2012, 00:25:44
Head gear and thrusters look great Brian. Looking forward to watching your build!
: Re: ESVAGT CAROLINE
: west coast tug October 25, 2012, 07:39:16
Be careful of the motor torque, Turning forces create a lot of problems for stock servos . If you get unwanted radio problems try changing the servos to a digital , They hold there positions better under load.
This problem will show up with the Graupner units as well if you over power them.
Gary
: Re: ESVAGT CAROLINE
: chipchase October 25, 2012, 11:51:16
Fitting the drives into the hull was straight forward, I decided to fit alloy plates into the hull for strength then fitted the drives through the plates. Unfortunately I donít have a photo showing the drives fitted inside the hull.

: Re: ESVAGT CAROLINE
: zeevaart1 October 25, 2012, 11:57:10
it's looks very good,nice job.
just real.
: Re: ESVAGT CAROLINE
: chipchase October 25, 2012, 12:00:16
thanks Cor  :) :)
: Re: ESVAGT CAROLINE
: Kev30 October 25, 2012, 14:35:36
Very nice work going on there Brian. I see the lathe and the milling machine seen a bit of use on your latest project with milling all your various aluminium bits out.

Regards
Kevin
: Re: ESVAGT CAROLINE
: tugs53 October 25, 2012, 20:39:23
Superb work Brian!
: Re: ESVAGT CAROLINE
: chipchase October 26, 2012, 02:01:28
Thanks gents, unfortunately I donít have a milling machine Kevin the bits were cut out with a band saw then filed. Life would be much easier with a milling machine but its convincing the wife.    ;) ;)
: Re: ESVAGT CAROLINE
: Model Tug Man October 26, 2012, 09:26:56
Thanks gents, unfortunately I donít have a milling machine Kevin the bits were cut out with a band saw then filed. Life would be much easier with a milling machine but its convincing the wife.    ;) ;)

Santa IS on the way!!!
: Re: ESVAGT CAROLINE
: chipchase October 26, 2012, 12:34:22
The Caroline has two bow thrusters fitted, I decided that I would only have one on the model  that would be working. The bow thruster is home made the same as the Z drives here are some photos showing the type I made and fitted.
: Re: ESVAGT CAROLINE
: chipchase October 26, 2012, 12:49:01
One more showing the bow thrusters fitted into the hull.
: Re: ESVAGT CAROLINE
: Kev30 October 26, 2012, 13:30:08
Well if your going to the Harrogate model engineering exhibition next May Brian leave a bit of room in the back of the car and make sure you go with a few mates from the boat club who can help you get your new milling machine in the back of the car!!!!

Regards
Kevin
: Re: ESVAGT CAROLINE
: zeevaart1 October 27, 2012, 00:01:21
Nicely done, looks great
: Re: ESVAGT CAROLINE
: chipchase October 31, 2012, 08:37:55
Hi all I seem to have lost a file of photos showing how I fitted the deck, :'( here is a photo showing how the build is at the moment. 
: Re: ESVAGT CAROLINE
: zeevaart1 October 31, 2012, 12:41:42
i really like this model.
she becomes a real lady on the water.
: Re: ESVAGT CAROLINE
: chipchase November 01, 2012, 13:49:17
Hi all the superstructure on the Caroline was not the easiest to build, here are a few photos showing the progress so far.
: Re: ESVAGT CAROLINE
: chipchase November 01, 2012, 13:51:19
three more
: Re: ESVAGT CAROLINE
: chipchase November 01, 2012, 13:54:32
more
: Re: ESVAGT CAROLINE
: chipchase November 01, 2012, 13:57:43
another three
: Re: ESVAGT CAROLINE
: chipchase November 01, 2012, 14:02:03
Last three
: Re: ESVAGT CAROLINE
: mike_victoriabc November 01, 2012, 16:17:53
Nice work - don't you love working with multi angles!
I built a similar one for my Nanuq and am contemplating having another go at it. Ray built a similar wheelhouse - he liked the shape of these as well.
: Re: ESVAGT CAROLINE
: zeevaart1 November 01, 2012, 23:28:29
 ^-^chipchase,nice details on the brige windows.
: Re: ESVAGT CAROLINE
: boatmadman November 04, 2012, 04:52:45
v nice work.

Any chance of some details on how you made the bowthruster?

Ian
: Re: ESVAGT CAROLINE
: tugnut November 04, 2012, 07:40:02
looking good Brian, thats a lot of windowsto cut out
: Re: ESVAGT CAROLINE
: chipchase November 09, 2012, 13:20:22
Hi Ian, just seen your post on the Caroline build, the bow thruster is made on the same lines as the Z drives but easier. If you look at the photo showing the bow thruster  you will see that I have used a 15mm copper T piece with a small section of copper pipe soldered in the end that holds the vertical drive shaft. I turned the end caps in the loath to hold the 10mm bearings; I used 2 bearings on each of the drive shafts. The shafts are m4 stainless steel and the bevel gears were purchased from Duval Gears. Hope this helps. 

Cheers George,    you are right about the windows very time consuming,
: Re: ESVAGT CAROLINE
: boatmadman November 09, 2012, 13:37:56
Brian,
Thanks for that. Why did you choose bearings over bushes? And, how did you keep the water out?

Ian
: Re: ESVAGT CAROLINE
: chipchase November 09, 2012, 13:59:25
I found that it was better using bearings to keep the bevel gears running true. I keep them packed with grease to keep the water out. I have not had any problems with this method up to now.
: Re: ESVAGT CAROLINE
: boatmadman November 10, 2012, 01:07:53
Ok, sounds good.

 Did you step the driven shafts at all in order to stop axial movement? Or did you rely on grub screws(?) or...?

Ian
: Re: ESVAGT CAROLINE
: chipchase November 10, 2012, 14:06:41
I used grub screws Ian; I havenít had a problem with this method up to now (touch wood)