Model Boat Mayhem

Dry Dock / Shipyard: Builds & Questions => Working Vessels => Topic started by: aslo44 on May 18, 2011, 10:38:07 PM

Title: ARTR Graupner New Castle Tug
Post by: aslo44 on May 18, 2011, 10:38:07 PM
 Hi, I bought one of these tugs a couple of weeks ago and was wondering if anyone on the forum had one? The reason I'm asking is I took it to the lake to try it out last week
and I was a bit heavy handed with the throttle, the tug just sat up and off it went on the plane (it was faster than the Azimut Virgin Atlantic Challenger I used to have) LoL.
 I am going to gear it down a bit, I think it's a 600 series motor but it's direct drive to the prop. Has anyone else had this problem, and if so how did you cure it? I don't want to
have the fastest tug in the northwest.  %% Cheers Alan.
Title: Re: ARTR Graupner New Castle Tug
Post by: Roadrunner on May 19, 2011, 12:39:08 AM
Easiest and cheapest cure is not to be so heavy handed on the throttle.... if its got that much power should be great for towing... wouldn't waste time gearing motors down to be honest.

Learn control of your proportional transmitter rather then spending cash which won't really solve your issue.
Title: Re: ARTR Graupner New Castle Tug
Post by: 6705russell on May 19, 2011, 06:07:40 AM
Easiest and cheapest cure is not to be so heavy handed on the throttle.... if its got that much power should be great for towing... wouldn't waste time gearing motors down to be honest.

Learn control of your proportional transmitter rather then spending cash which won't really solve your issue.

I wouldnt of thought it was good for tug towing if its that delicate on the throttle?  I dont think "learning" control of the proportional transmitter is helping either, as you say Alan it might be worthwhile swapping the power train either to a geared system or installing a more torquey motor which will give you a good power range through the travel of the transmitter stick and a better scale speed...

Russ
Title: Re: ARTR Graupner New Castle Tug
Post by: Shipmate60 on May 19, 2011, 08:24:38 AM
What voltage does it run on?

Bob
Title: Re: ARTR Graupner New Castle Tug
Post by: Roadrunner on May 19, 2011, 08:52:03 AM
and I was a bit heavy handed with the throttle,

Heavy handed... nothing to do with motors outright power. yes i agree that it will always have an unscale speed, but i have learnt from many here that they like to over power there models to get out of situations should they occur, as for towing yes gearing down motors will give greater torque and low range speeds but unless you learn to not be so heavy handed on the throttle then even gearing down motors to say 2.5:1 or 6:1 will be a waste of time, 6:1 motors still shift a large tug quite fast ( i know i have both sets for my tug, change motors for diffrent events or locations)

2.5:1 scale steering or very rough water days, 6:1 full on towing on calm days or when im on a lake pond that's not governed by the sea, as no tidal conditions to worry about.
Title: Re: ARTR Graupner New Castle Tug
Post by: tugmad on May 19, 2011, 09:04:44 AM
Hi my brother has a Newcastle and he has modified the outside a bit but not touched the inner works at all, and she tows O k but struggles a bit when towing our 16 ft towboat, but all in all a nice little boat but a bit fragile on some of the plastic fittings.
Title: Re: ARTR Graupner New Castle Tug
Post by: aslo44 on May 19, 2011, 09:54:31 AM
What voltage does it run on?

Bob
Hi Bob it runs on 12v nmhd pack at the moment I put two of them in for a bit of ballast (only one connected) but I don't think it's enough wieght, so I might change to two gel cel 6v.Alan
Title: Re: ARTR Graupner New Castle Tug
Post by: aslo44 on May 19, 2011, 10:12:57 AM
Your right tugmad, I like the little tug but as you say they are very flimsy on the plastic bits. As soon as I took mine out of the box I had to stick the fire hydrant on and glue the radar mast back together
and a few other little bits as I said in my earlier post I can be a little heavy handed (but thats not the boats fault) thanks for the photo's and the info. Alan
Title: Re: ARTR Graupner New Castle Tug
Post by: aslo44 on May 19, 2011, 10:18:16 AM
Heavy handed... nothing to do with motors outright power. yes i agree that it will always have an unscale speed, but i have learnt from many here that they like to over power there models to get out of situations should they occur, as for towing yes gearing down motors will give greater torque and low range speeds but unless you learn to not be so heavy handed on the throttle then even gearing down motors to say 2.5:1 or 6:1 will be a waste of time, 6:1 motors still shift a large tug quite fast ( i know i have both sets for my tug, change motors for diffrent events or locations)

2.5:1 scale steering or very rough water days, 6:1 full on towing on calm days or when im on a lake pond that's not governed by the sea, as no tidal conditions to worry about.
Hi road runner thanks for the advice I think I will take it on board and leave things as they are for the moment and try to get used to it. A friend of mine sugested using the trim button so I might try that also. By the way thanks for the help with the Fairy Huntsman. Alan
Title: Re: ARTR Graupner New Castle Tug
Post by: gregk9 on May 19, 2011, 02:03:17 PM
You could try swapping the 12v batteries for 6v jobs, this might give you better control due to it running on a lower voltage, which will reduce the engine rpm's. its either that or you will need to swap the motor for a geared one, 3:1 reduction would suit it fine id say. But at least a battery swap is an easy fix to do and easy enough to swap back if you dont like it, motor swaps can be lengthy and often cramped to do once fully built.
Title: Re: ARTR Graupner New Castle Tug
Post by: Shipmate60 on May 19, 2011, 02:28:10 PM
I was thinking to run her on 6 volts free then connect the batteries in series for towing.

Bob
Title: Re: ARTR Graupner New Castle Tug
Post by: Roadrunner on May 19, 2011, 06:04:04 PM
NO worries Alan good luck with the huntsman, if you get stuck give me a PM since i drew the templates that your receiving off John since they were modded for a 47",

With the tug practise your control, but should it still cause issues later then look at changing it, sometimes its always the simple (and cheap) things that work the best!
Title: Re: ARTR Graupner New Castle Tug
Post by: ixion on May 19, 2011, 06:12:30 PM
Hi my brother has a Newcastle and he has modified the outside a bit

Thats a really nice job, totally transforms the look of the tug. Was it easy to take apart to paint?
Title: Re: ARTR Graupner New Castle Tug
Post by: aslo44 on May 19, 2011, 10:25:17 PM
Thanks to Bob and gregk9 it looks as if I'll be getting in touch with The Component Shop again for a couple of 6 volt batteries.
Thats a good idea bob and I would never have thought to go that way. I need a bit of extra weight in the tug so gel cel's
might just do it for me. Thanks for all your input. Alan
Title: Re: ARTR Graupner New Castle Tug
Post by: over_powered84 on May 20, 2011, 05:44:02 AM
Hi Alan
i wouldn't worry to much about an overpowered tug(hence my name %%), i have the graupner pollux and usually run it on 7.2v or 9.6v, geared 2:1 it runs amazing, i can throttle back on days i want to just potter about and pushing anything heavy i have full on power for those days, when not towing on full power you could say she goes on the plane... if it wasn't for the weight of my batteries lol, oh graupners recommedation to run this little tug... 4.8v... somehow i dont think so lol

Jnr
Title: Re: ARTR Graupner New Castle Tug
Post by: tugmad on May 20, 2011, 07:43:11 AM
Thats a really nice job, totally transforms the look of the tug. Was it easy to take apart to paint?

 My brother painted it without any dismantling at all not bad for a 64 year old.
Title: Re: ARTR Graupner New Castle Tug
Post by: aslo44 on May 20, 2011, 09:03:02 AM
My brother painted it without any dismantling at all not bad for a 64 year old.
I should be able to do a good paint job then I'm only 62 lol. Didn't he like the coulors it came in ? Was it a ARTR model like mine ? Alan
Title: Re: ARTR Graupner New Castle Tug
Post by: tugmad on May 20, 2011, 10:41:48 AM
Hi Alan  yes was a standard Newcastle but brother Pete  decided to Pimp it up a bit  with a few minor modifications like changing the liferaft.putting a mizen mast in and moving the radar ,he also put the mooring posts on. he also only uses 6volts on the motor
Title: Re: ARTR Graupner New Castle Tug
Post by: aslo44 on May 20, 2011, 11:08:25 AM
Yes tugmad I think I'll invest in a couple of new 6 volt batteries and a brass prop (came with plastic one).
My biggest problem is like most people I suppose cash shortage,haven't worked for over ten years due to
disability problems and have to watch the pennies.Thanks for the photo it looks good on the water mine
sits a bit too high at the moment.I also need to glue some more little bits I have broken off when moving it.  :(( Thanks again Alan.
Title: Re: ARTR Graupner New Castle Tug
Post by: Channel on May 20, 2011, 06:11:50 PM
She looks rather splendid - even if in Alexandra Towing colours (runs and hides behind a Cory funnel)!

I have often considered one of these, no harm in her being a little underpowered, makes for a challenge!

Chris
Title: Re: ARTR Graupner New Castle Tug
Post by: tugmad on May 20, 2011, 07:24:06 PM
Hi Vhris yes it is a shame about the colours, but it is about as tarty as you make a tug look,nice and pretty %% %% regards geo.
Title: Re: ARTR Graupner New Castle Tug
Post by: tolnedra on May 21, 2011, 09:13:08 AM
What's wrong with Alexandra Towing Company's colours, then? Except for my Thames river tug, all mine are in ATC's colours, complete with company flag on most! Probably due to the fact that my first tug was PBM's bead-and-butter 'Alfred' many years ago, followed by 'Joffre', and since then have kept to those colours, 'cos I like 'em!!!
Title: Re: ARTR Graupner New Castle Tug
Post by: Channel on May 21, 2011, 09:59:39 AM
We all have our own favourites, for my its Cory as I grew up in Cardiff thats what became 'tug colours' for me closely followed by CJ King's. I sailed on the former Alexandra tug Margam for a time and she really grew on me as did her looks.
Title: Re: ARTR Graupner New Castle Tug
Post by: pdryden on May 21, 2011, 10:35:00 AM
My brother painted it without any dismantling at all not bad for a 64 year old.

Talkinf about the colours George, what colour did your bro paint the Accomodation part of the Superstructure?


Peter.
Title: Re: ARTR Graupner New Castle Tug
Post by: tugmad on May 21, 2011, 11:45:26 AM
Hello Peter he always uses humbrol TAN  No 9 foe alexandres colour scheme which by the way my own Avenger  and Ower are painted in, it is once again a local tug firm on the thames or was until the Australians got here.
Title: Re: ARTR Graupner New Castle Tug
Post by: tugmad on May 21, 2011, 11:48:11 AM
What's wrong with Alexandra Towing Company's colours, then? Except for my Thames river tug, all mine are in ATC's colours, complete with company flag on most! Probably due to the fact that my first tug was PBM's bead-and-butter 'Alfred' many years ago, followed by 'Joffre', and since then have kept to those colours, 'cos I like 'em!!!
Hi tolnedra      No Offence meant.     By Tarty I mean a bright and colourfull model as I love the Alex colours myself and we have probably6 or7 models in the club in the same colours,

Geo.
Title: Re: ARTR Graupner New Castle Tug
Post by: tolnedra on May 21, 2011, 11:55:20 AM
No offence taken. That's a nice line-up on your last photo. I'm just converting a Hobby Engine 'Southampton'/'Atlantic' to ATC colours, just the lower superstructure to do now. Changed the radio to 2.4, and put in an Action P94 for better control, plus a much larger battery, gave decent running time last Thursday of well over an hour, with plenty left in the battery. Quite pleased, as that was her first outing since conversion.
Title: Re: ARTR Graupner New Castle Tug
Post by: tugmad on May 21, 2011, 12:08:49 PM
Yes they are a really good value for money little boat I have one that I have carved about a bit and also fitted two speed controllers and a bigger battery,and  she will also tow our 16ft towboat.
Title: Re: ARTR Graupner New Castle Tug
Post by: offshore1987 on May 21, 2011, 03:39:48 PM
My mate got one of these n i set it all up for him, they come to lite and need a good bit of weight in the stern then she half sits right, yes they are very nipy but like said up top, just dont give it full stick, but it is nice to have some speed if you have to get out of the way of something

Also if your going to tow something heavy dont just give it full stick lol because from what iv seen of his it will just just dig the stern in and probs sink  ok2 part from that they are good little tugs, i had to rebuild most of his because it turned up smashed from the shop ( the posts fault )
Title: Re: ARTR Graupner New Castle Tug
Post by: Channel on May 21, 2011, 06:10:21 PM
Thats some fleet!
Title: Re: ARTR Graupner New Castle Tug
Post by: Roadrunner on May 21, 2011, 07:19:07 PM
Tug man that's a great conversion of your Southampton i have one thats in quite a sorry state (3rd hand) i have found with its standard running gear its pretty poor in sailing, im going to tear out the motors gear system and fit twin 400's on direct shaft, twin each for independent control. I'd be grateful if you could upload more photo's of your conversion especially the cut down understructure, it is quite a heavy part and the wind certainly catches it as i have found out when it nearly tipped on an outing.

I'ld like to make make mine lower such as yours, which will also decrease the weight a tad, also change the props from the plastic to some nice brass ones, what did you do in that area?
Title: Re: ARTR Graupner New Castle Tug
Post by: tugmad on May 22, 2011, 10:52:59 AM
Hi Roadrunner, all I did to the superstructure was to mark around about 20mm from the top down and cut it off, I the made a couple of false hatchways on the back end to extend it a bit. I have left the original motors and gears in but made them independantly controlled with a couple of 10amp M Tronic viper  E S Cs  and fitted a bigger battery across the hull under the after deck just in front of the servo for the steering (which I changed for a Futaba one)  and placed about a half pound of lead between the rudder posts and i use a Planet 2.4 ghz radio oh and she still has her original props which are brass. :-)) Geo.
Title: Re: ARTR Graupner New Castle Tug
Post by: tugmad on May 22, 2011, 10:56:44 AM
Here is a link to a bit of video of her towing.  http://youtu.be/XPMkIYz5ALY
Title: Re: ARTR Graupner New Castle Tug
Post by: Roadrunner on May 22, 2011, 12:06:33 PM
Topman  :-)) that video is amazing, so surprised what a little tug can do! I'm deffo going to convert to independent drive for now see how she gets on before committing to a full conversion
Title: Re: ARTR Graupner New Castle Tug
Post by: Tug-Kenny on May 22, 2011, 03:25:45 PM

Smashing job Geo. I like the Vid

Ken

Title: Re: ARTR Graupner New Castle Tug
Post by: tugmad on May 22, 2011, 05:27:29 PM
Hi again Ken did you look at the other video clips  (thamestugman)videos.  geo.

and well done roadrunner you will be suprised what that little boat can do with a bit of T L C.  all the best  geo. :-)) oh and I have just remembered something else I have changed the props so the they both turn outboard  they were turning inboard when new. ok2
Title: Re: ARTR Graupner New Castle Tug
Post by: Tug-Kenny on May 23, 2011, 10:47:02 AM
Hi again Ken did you look at the other video clips  (thamestugman)videos.  geo.



Hi Geo,  Oh yes. I thought the 'Avenger' looked rather good, and so powerful.

Must get mine down off the shelf and finish her off for sailing. Got grid locked with the water cannon system and shelved it for a while.   %)

Ken

Title: Re: ARTR Graupner New Castle Tug
Post by: John E on August 16, 2011, 05:22:39 PM
A little late in the day, I know - just found the forum!

This range of models is designed for 6V operation - the 12V is clearly way too much, and is likely to cause damage!  I have a (smaller) fishing boat from the same rang (actually Le Petit Charles - similar size to Catherine), and I like to run on my 6 cell (7,2V) racing packs - I had the same problem.  The change was to use a Mig 600 12V Boat motor with the 7,2V pack direct drive, and the speed is really nice for the smaller model.  I used wheel balance weights in the bottom of the battery bay to make up the weight.

I would imagine 6V with the original motor would be perfect for the Southampton (still with lots of power).   On my wish list when available again!

John