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Dec 16, 2002, 11:32 PM
Sea Dragon-Lover
Umi_Ryuzuki's Avatar
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Build Log

2002-Voith Schneider drives and LA Fireboat build up

Graupner had reissued a Voith-Schneider drive for 2002. I believe you can "Special Order" them, in the US, through Hobby Lobby International using the Graupner part number. Be sure to say it is a special order. They are running about $160.00 US.

Harbor models has been carrying these drives for about $145 I believe.

Graupner Part 2358 VOITH-SCHNEIDER
> Specification Drive motor SPEED 500 E 12 V
> Operating voltage 10 ... 12 V
> No. of propeller blades 5
> Blade length approx. 50 mm
> Propeller disc ? approx. 65 mm
> Overall height (incl. motor) approx. 155 mm
> Housing ? approx. 93 mm
> Weight (incl. motor) approx. 445 g
> Height excl. motor approx. 115 mm
> Required opening in hull approx. 84 mm


Edit 2014

Since the Bankruptcy settlement, in 2013, Graupner has sold of a lot of assets.
Schottel I and II Drives, and Voith Schneider drives can be found through
Bauer-Modelle in Germany.
Last edited by Umi_Ryuzuki; Oct 23, 2015 at 05:13 PM. Reason: Because I can,... : ) - date
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Dec 18, 2002, 03:48 PM
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what is the efficiency of these like and the speed range ?

Dec 19, 2002, 05:09 PM
Sea Dragon-Lover
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I just got one (I ordered two.) So I haven't been able to test it in the water yet. I have to build a boat still

But running the engine dry, I can feel the breeze from the blades on 6 volts, and a it's a nice wind at 12volts

I have Three boats in mind.
The first will be a 95 foot tractor tug.

The second option is one of the Navy MHC
...The top speed of one of these is like 10 kts if that tells you anything.

The third might be "The sound of Sleat" small car ferry boat.

I plan to cast the mounting ring of the engine so that all I have to do is unscrew the engine and move it to different boats.
Jan 10, 2003, 12:17 PM
Don't fly Flat !
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This Drive is really interesting , on a slightly larger scale you could have one on both ends of a boat and be able to maintain heading and position with a little help from GPS and rate sensors.

It might make the Bass fishermen happy, how much servo power does it require?

Jan 11, 2003, 07:10 PM
Sea Dragon-Lover
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Well it is pretty easy to manipulate the control rod on the center of the engine. So I don't believe I will need anything more than standard servos.

However I am not sure it could hold a full size boat in a current or a stiff breeze.

They are kind of difficult to comprehend
Friedrich Prossegge has resource documentation for building a small drive unit,

and the best diagram on his website.

Otherwise you need to contact Voith Marine Technologies if you want a larger version.
Last edited by Umi_Ryuzuki; Jan 12, 2003 at 01:38 PM.
Sep 25, 2003, 12:09 PM
Sea Dragon-Lover
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The Project has been chosen!!!

The new Los Angeles Fire boat #2 is the winner.
I have had plans for a Foss Tractor tug "America" sitting around for years, but, as mentioned, until last winter the Drives could not be found.

The Los Angeles Fire Boat #2 was launched on January 17, 2003. It went into service in April. No one talks about this boat. Conceptual drawing are available online in the form of PDFs and BMP from the L.A. Fire Department site. But contacting the naval Architects and the builders will be only be met by silence, and the comment, "We're Busy! ".

We only managed to get reasonble frame plans because one of the links at the LAFD website worked for 24 hours. It didn't work before, and hasn't worked since then. We found several images of the hull under construction. I put my pencil to work and despite some construction descrepancies we have hulls.

[Edit] Drive efficiency: These drives run really well. We got the opportunity to run with some of the guys from Seattle, NW R/C scale Ship Modelers, and they had two of their tugs running on these drives. One of these was Huge, over scaled, compared to the drives. But it ran beautifully, strong and did not suffer at all from being over sized.

The Keels were laid on August 3rd, 2003
Last edited by Umi_Ryuzuki; Oct 24, 2006 at 10:52 PM.
Oct 12, 2003, 11:46 AM
Registered User
Hi Umi:
I've seen the hulls for the LA models. There's a fellow near here building them for the LAFD using those drives. Please let me know if you're interested and I'll put you in touch with him. I've also seen the AJAX belonging to a Burnaby boat club member - you might find it on the North West Model Boat guys page under the 2003 Foss Cup photos. It's amazingly manouverable.
Oct 12, 2003, 04:40 PM
Sea Dragon-Lover
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Hi Mike,

We heard from a few of the guys in NW R/C Ship Modelers that there was someone building the LA Fire Boat #2 in Victoria, BC.

Be we were given the impression that he was only interested in
marketing them. But if he is building in the same scale as ours, 1/36, then we would be interested in some of the fitting items.

Is He building them FOR the LAFD? Like display models?

Yes, put us in touch. We can always use more info and data.
Oct 13, 2003, 12:34 AM
Registered User
I'll find out for you.
I'm impressed with your superstructure - the angles, etc don't make that an easy model.
Oct 13, 2003, 11:17 AM
Sea Dragon-Lover
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Actually I hadn't considered the bridge work to be the difficulty.
It was finding hull information that was driving me crazy. I would be finished with the bridge structure, but if I get too far ahead of Tachikaze, he will get depressed.

Of course he kind of likes benefiting from all my second thoughts on construction.

Thanks for checking your local connections for info for us.
Oct 16, 2003, 07:39 PM
Registered User
You've perked my interest to look for another boat to start! The Voith units have facinated me but I've been reluctant to bite the bullet having two other tug hulls on the go using regular drives and nozzles. I'll be interested in seeing your photos showing the units when mounted - a tractor tug might be the style I head to. Providing the rain lets up here I hope to head over to the Fraser River area on the weekend and take some photos of typical working tugs provided they're locatable. What hull size do you think these drives can manage? Any ideas?
Oct 19, 2003, 11:26 AM
Sea Dragon-Lover
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I have seen the drives running a boat in 1/24 scale. They had no problem moving the boat, or a tow.

Here are some of my links
go to site map, escort tugs, AVT

Ferry boat

Small Car ferry boat

US Navy MHC with voith drives and bow thruster

A Foss Tug
Lindsey and Garth Foss escort tugs

I have what I would call a partial plan set for the "Foss America"
I was able to obtain them by meeting with one of the local Foss maintanence supervisors and discussing my project.

__________________________________________________ ______________

There are two books for building your own four blade Voith Schneider drives.

Derr Voith-Schneider Propeller als schiffsmodellantrieb by Kurt Benz, ISBN 3-922414-10-9

MTB Modell-technik-berater MTB 30, Voith-Schneider-Antrieb im Selbstbau, by Hubert Bossart / Eberhard Schulz, ISBN -88180-374-2

Last edited by Umi_Ryuzuki; Oct 23, 2015 at 05:28 PM.
Oct 19, 2003, 11:32 AM
Sea Dragon-Lover
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Oh, I also have some pdf files for some tugs, and these plan images for a tug known as "Gatika"
Last edited by Umi_Ryuzuki; Oct 19, 2003 at 11:40 AM.
Oct 19, 2003, 11:34 AM
Sea Dragon-Lover
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These aren't very big, but I can e-mail you the bigger versions if these don't print well.
Nov 09, 2003, 10:07 PM
Registered User
Here is a website with another LA Fireboat to view under "projects'.

I'm toying with a tug using these units, perhaps a Crowley style.

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