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Author Topic: Seaport Workboat RTR Alterations  (Read 13360 times)

Stavros

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Re: Seaport Workboat RTR Alterations
« Reply #35 on: April 20, 2008, 05:31:23 PM »

Tug Dicky rides the waves



Stavros
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No Motor is to Big for me.....Catch it if you can Phil

number-1

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Re: Seaport Workboat RTR Alterations
« Reply #36 on: April 21, 2008, 10:01:42 PM »

great looking tug you have there, you mention its very manoeuvrable, I'm looking for a new project for scale steering competions, do you think this would be suitable? whats the length/beam? thanks for any replies. Les
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DickyD

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Re: Seaport Workboat RTR Alterations
« Reply #37 on: April 21, 2008, 10:04:51 PM »

Maneuverable when going ahead, rubbish when going astern  O0
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tolnedra

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Re: Seaport Workboat RTR Alterations
« Reply #38 on: April 21, 2008, 10:35:26 PM »

Hi Richard,

You haven't changed the prop/kort nozzle, have you? Mine isn't too bad astern, but you have to give it time to react.

Danny
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DickyD

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Re: Seaport Workboat RTR Alterations
« Reply #39 on: April 22, 2008, 08:16:02 AM »

No I kept the kort nozzle and prop Danny.
Got a lot of cavitation going astern, but I think it might have been riding a bit high in the water so I have added some more ballast and will try again.
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Re: Seaport Workboat RTR Alterations
« Reply #40 on: April 22, 2008, 03:06:12 PM »

No I kept the kort nozzle and prop Danny.
Got a lot of cavitation going astern, but I think it might have been riding a bit high in the water so I have added some more ballast and will try again.

My Miranda does that where identical ~Gemini does not, so a lil weight in her rear end will do it
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rwalker

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Re: Seaport Workboat RTR Alterations
« Reply #41 on: May 10, 2008, 11:14:38 PM »

Here's that motor mount pic that Weeds asked for. It may look different than what you have, this is the Hen Long Work Boat. As you can see, a hotter Mabuchi can motor will fit nicely into the intended mount. HOWEVER! This image is possible because I had to open it up again.


It seems two things happened:

1. The motor loosened from its mounting screws

2. The resulting friction against the mount experienced by universal heated up the motor shaft  u-joint and the hole thing came loose from it.

It seems that with a stronger motor, the friction fit of the stock u-joint is inadequate for prolonged runing....or was the sudden reverse move by the Cub Scout at the controls the cause? Who knows, but I'm going to upgrade the u-joint to something proper.
And tighten those screws down with Loc-Tiite!
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Damien

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Re: Seaport Workboat RTR Alterations
« Reply #42 on: May 17, 2008, 08:07:37 AM »

Richard,
What approx scale are these tugs ? I'm  trying to work out dimensions for superstructure, masts etc. I've filled all the imperfections in the hull and deck, and ready to tackle the cabin/deckhouse etc.
Damien. 
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DickyD

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Re: Seaport Workboat RTR Alterations
« Reply #43 on: May 17, 2008, 09:49:36 AM »

Hi Damien I worked mine on a 1:48 scale more or less, the crew are 1:50. ;)
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Damien

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Re: Seaport Workboat RTR Alterations
« Reply #44 on: May 17, 2008, 11:51:23 AM »

Thanks Richard, I'm going to base mine loosely on MT Lorraine, an Aussie tug based in Queensland.

  Lorraine: Specifications
General Specifications
Survey (QLD)   USL 2B (4 persons), USL 2D (6 persons)
Length   15.3 metres
Beam   4.7 metres
Draft   2.0 metres
Displacement   47.8 tonnes
Bollard Pull   7 tonnes
Fuel Cargo Capacity   20,500 litres
Water Cargo Capacity   2,000 litres
Machinery & Equipment
Main Engines   2 x 300 hp Cummins NT855
Generator   1 x 12 kva Nissan





 now it's calculator time to figure the scale, just on 1/48th so "O" Gauge figures will be close enough.
The only other pic I've found is from the bridge to rear over the stern.
Damien
« Last Edit: May 17, 2008, 03:49:27 PM by Martin - Forum Admin »
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DickyD

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Re: Seaport Workboat RTR Alterations
« Reply #45 on: May 18, 2008, 04:55:15 PM »

Put her back in the water again today after adding to the ballast and she behaves and looks a lot better.
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Edward Pinniger

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Re: Seaport Workboat RTR Alterations
« Reply #46 on: May 18, 2008, 05:40:47 PM »

Looking very nice on the water! I hope to take some similar photos of my own boat soon, but it hasn't run since I finished it.

To Damien - the Workboat hull is about 56cm long, so your 15.3m prototype would scale out at 1/27. 1/24 figures would probably be OK for this.
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Damien

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Re: Seaport Workboat RTR Alterations
« Reply #47 on: May 19, 2008, 03:47:51 AM »

Thanks Edward, School was too long ago it seems & i got the calc's wrong.
D.
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spud

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Re: Seaport Workboat RTR Alterations
« Reply #48 on: May 19, 2008, 08:46:33 PM »

hi all
if your looking for a seaport tug have a look on ebay Item number: 260241947209
no connection just a customer
great conversion dickyd
cheers spud
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