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Oct 21, 2016, 05:18 PM
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Thread OP

70inch TID tug

Hi guys,

Im thinking of purchasing a TID tug, its not a complete kit but it has hull and the mouldings for Hull, Wheelhouse, Front Superstructure, Rear Superstructure, Funnel, Front Bonnet, Doors and Hatches.

This will be a big project as its basically around 1.8m in length and has 18" beam.

But i have a few questions for those with experience in building from scratch as ive only ever built from complete kits. But i really want to give this huge build a shot.

Motor wise, im not too sure, but after some research, i came across a 12 pole - Hi Torque - Lo Rev - 24volt, Max revs 4000rpm.

Im going to run twin screw so would 2 of these be sufficient? Or is it overkill, or not enough?

What ESC and battery would be a good choice?

Building wise, where is best place to buy the wood for me to complete the model? What type of wood should i buy for the deck etc including thickness (the hull and mouldings are all fibreglass by the looks).

Finally, what size props would be best, should i use kortz drive or?

Heres pics of whats included:

Thanks in advance guys :-)
Last edited by tizdaz; Oct 21, 2016 at 05:26 PM.
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Oct 21, 2016, 08:11 PM
Where's Pamela?
patmat2350's Avatar
You might enjoy reading through the posts here:
Oct 21, 2016, 08:15 PM
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Band1's Avatar
that's quite a hull you got there , before you start make sure you
wash it inside and out with something like Prep All to remove any
Residu from the mold.
You can run this on twin screws at 12v , you will need a lot of ballast
so if you start with one of those 12v motorcycle batteries you will be
Using less ballast. You might need two of those !
As far as the deck you will need heavy duty cross members under the
deck, even thou I would only pick up a hull this size from the bottom.
You will most likely need to build a cart to lower it into the water and
to carry it around , I know I been logging mine around now for 17years.
The deck it's up to you but I would frame it out and use 1/8" or1/4"styrene
And you will never have to worry about water damage.
I like kort nozzels , I have 2 - 4"" D with 31/2 " props and it
handles great and it turns nice , the only thing about nozzels is
if you will run the boat in water that has a lot of debris,
you will pick the stuff up in the props and you will get stuck
I put in fuses to prevent a short if the props ever got stuck.
Mine is 51" L about 70 pounds fully loaded !
Make sure that you use plenty of glue under the deck !
If you go with brushed motors , you can call Vantec , their ESC are not cheap
but they last and one can handle two big motors.
Also speak with Harbor Models for motors.
Good luck, I will be watching.
Last edited by Band1; Oct 22, 2016 at 05:06 PM.
Oct 21, 2016, 10:50 PM
Registered User
Tiny69 from Model Boat Mayhem wrote the book on TID models – literally. He has published an ebook about his TID build. Really worth getting a copy as it is full of information, detail and photos.
Oct 21, 2016, 11:25 PM
Tug Hercules Fireman
Tug Hercules's Avatar
Here is the link to the TID e-Book ...
Oct 21, 2016, 11:44 PM
If you cant find it Build it!
tiz on all my builds I went with Douglas fur cabinet grade wood from a local lumber yard it is easy to work with and last a lifetime, should its what they used on the real wooden boats! as for the under decking just use birch plywood.
Oct 22, 2016, 05:01 AM
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Thread OP
Lovely info thanks guys :-)

Also im thinking of installing a bow thruster but again, not too sure on the size or where to buy?

So 12v motors will be good for this build then, any recommendation for the motors?

When you say use plenty of glue under deck, is this to make it water tight you mean actually on the umderside of deck or just under the deck (hull area) in general?

Im sure theres going to be many more questions once ive started the build, im.just awaiting the supploer of the hull to get back to me, im really looking forward to getting started! :-)
Oct 22, 2016, 01:52 PM
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Thread OP
Well, ive just had a chat with the supplier of this tug, 6 week turn around as its made to order which is all good, so think im going to place order this week, its pick up only due to the size, so thats about a 500 mile round trip! But again, it will be worth it.

he also recommends 12-14mm shafts, where could i purchase the running gear in uk? As i also need the kortz nozzles, Band1 you say you use 4" on your tug build, where did you purchase yours from ?

Cheers again guys :-)
Oct 22, 2016, 04:48 PM
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Band1's Avatar
I bought mine from Robbie , you have to check their website if they
still make them. I sow a set about a month ago on eBay in the UK.
I used two Robbie 1000 direct drive motors in mine they never get warm
lots of power even after 17 years but if you want to call Harbor Models
maybe you can use 2 800 MFA motors see what they say.
As far as the glue , a lot of guys pick up the hull from the opening where
Superstructure sits , and due to the weight of the hull if you don't
glue the deck down good you will have problems later on.
I have 6 crossmembers supporting my deck made of 1/4" plywood ,
they are made of pine 3/4 wide by 1" thick looking down from the top.
If you want to use Kort Nozzels and you can't find them anymore , I made
my owen click on my name and look at the picks for a research boat that I built
I used cans from light fixtures they are 4" in D.

I built this one below with a friend of mine Louie in my club.
Last edited by Band1; Oct 22, 2016 at 05:20 PM.
Oct 23, 2016, 03:34 AM
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Thread OP
Brill, great info thanks again, i will checkout those websites and send a mail or 2 to see whats what :-)
Oct 23, 2016, 09:30 AM
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Pittman 24 volts may work...great brushed motors.
This tug is huge...look forward to build!
Oct 23, 2016, 09:37 AM
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Tim B.'s Avatar
Oscar your advice is Great !

( you know the Big models well ) ....
Oct 23, 2016, 01:11 PM
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Jaa...thanks Tim!
Not because I build them just by trial and error!!
Oct 23, 2016, 04:52 PM
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Thread OP
Hi guys,

Oki been looking more at the motors, MMM sell this one:

12 pole - Hi Torque - Lo Rev - 24volt
Max revs 4000rpm

Larger & more powerful than the T12 /24 , the BF 24 is still a very compact 'power-house' giving the marine modeller even more scope where power; torgue and greater 'running-time' is needed.....

The optional extra, ultra-strong motor mount, made from brass, aluminium & stainless steel parts is available as a single unit, or a special twin unit that 'sets' the motors at a pre-determined distance a-part to suit practically all twin installations.
Suitable for boats from 40"

Shaft = dia. 8mm x 20mm long
Body size:-
OAL = 145mm
Dia. = 70mm

Price is 160 for two which includes the mounts.

They also supply kort nozzles, (110mm dia) they are the fixed type, would these be ideal?

Thanks :-)
Oct 24, 2016, 03:36 AM
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Thread OP
Hi guys, past few days ive been looking for a design, decided to go with this one (Anteo)

I have the plans etc but not to scale so its going to be a challenge!

Ive also decided to use single screw setup after talking to several guys :-)

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