Hello all,

My grandfather was an avid model ship builder and made a Dumas P.T. 109 with custom paint. I recovered it after many years (15+years) of being in my basement and thought Iwould restore it. I cleaned it up great, glued back props and fixtures, and in progress of repainting and fixing the motor/electrical motors.

Ok, see here is my problem. Im stuck on researching what it should look like inside and what things are necessary. I attatched a picture below to show you what I have.

Ihave: Dumas Part # 2005 (motor)[img]file:///C:/DOCUME~1/BRYANC~1/LOCALS~1/Temp/moz-screenshot.png[/img] Speed Control Dumas Pt # 2023 for 2005 motor. I also have the radio controll and reciever. I think I am missing a batter pack or some kind of power supply. Please help me out on how to fix this up and get it back in the water working. Im not looking for performance engine or any kind of fast sporty hardware, I'm just looking for a motor that will move this thing in the water so it can be fun to play with for a little bit on the weekends.

Thanks for the help and please throw back any kind of feedback.

First, get rid of the old speed control, that uses resistors to control the current flow. That old dumas speed control will heat up more when the power is in the low position and drain your battery, and get very hot.
If you put in a 40$ Proboat ESC which comes with a battery elimanition circut and has a reverse,12 volts is its limit ant it will handel that motor with ease(I am sure there are many other good ESCs) This is how you would set it up. 2 wires go from the battery to the esc, do not reverse them or it will burn up the esc, two wires will go from the esc to the motor, if you reverse these wires, it will only make the motor run in reverse. of the 2 wires left on the esc, one goes to the reciever, that is the top box in your picture, You would replace the center wire.
Becaues the proboat esc has a battery elimnation circut you would not need the wire that is plugged into the right side of the reciever. Unplug and remove it and the small pack of batterys that only give power to the esc, the new esc will pull power off main battery to run the reciever. The only wire left on the new esc is the on off switch, always turn it on after you turn on the transmitter and turn it off before you turn tne transmitter off. you dont want the esc on when the reciever is not on or the esc and survos go wacky.
This will allow you to get rid of that survo on the right of your picture, the large silver esc and the battery pack the runs the reciever.

First, get rid of the old speed control, that uses resistors to control the current flow. That old dumas speed control will heat up more when the power is in the low position and drain your battery, and get very hot.
If you put in a 40$ Proboat ESC which comes with a battery elimanition circut and has a reverse,12 volts is its limit ant it will handel that motor with ease(I am sure there are many other good ESCs) This is how you would set it up. 2 wires go from the battery to the esc, do not reverse them or it will burn up the esc, two wires will go from the esc to the motor, if you reverse these wires, it will only make the motor run in reverse. of the 2 wires left on the esc, one goes to the reciever, that is the top box in your picture, You would replace the center wire.
Becaues the proboat esc has a battery elimnation circut you would not need the wire that is plugged into the right side of the reciever. Unplug and remove it and the small pack of batterys that only give power to the esc, the new esc will pull power off main battery to run the reciever. The only wire left on the new esc is the on off switch, always turn it on after you turn on the transmitter and turn it off before you turn tne transmitter off. you dont want the esc on when the reciever is not on or the esc and survos go wacky.
This will allow you to get rid of that survo on the right of your picture, the large silver esc and the battery pack the runs the reciever.

To answer your questian more direct. you have 4 bare wires comming from the silver box/ electronic speed control/ESC (the one I hate some much) two of thoes go to the battery, probably the two with alligator clips, I dont know if there is a problem in reversing them or not, so just make sure to hook the red to pos and the black to neg. the other two green wires go to the motor and if they are reversed the motor will only run opposit so this is just trial and error. Find the transmitter, put in good batteries, and go.

hansvonpensch is 100% correct. Get rid of the old ESC. It is a mechanical type and may no longer work very well. The Proboat is fine and the Viper brand is also a good choice. As for "go power", it is a bit tough to get jaw dropping performance on one small prop and one small motor. If the performance is not up to par, you may want to go with larger components (prop, motor, etc) or convert to a twin prop setup. The two spare battery clips appear to be for the main battery pack. You can use the type used in rc cars, a 6cell 3000mAH Nickel Metal pack but you'll need to change out the clips for Tamiya connectors. You'll also need a battery charger.

Also check with the local hobby store on the vintage of your radio. If this is really on old boat, you may not have a legal radio. With a lot of folks now converting to 2.4Ghz, you may find numerous 75mhz radios available at local hobby shows and swap meets at a really great price.

Is there a ship model club in the area? They would be glad to help out with your project. You can work through these issues on your own (with our help), but it would be best if you had a crew around you that had been down this road before.

hans and rcship, thanks for the help. Appreciated very much.

Ok, So I think I'm going to grab a battery pack and switch the gator clips on the wires with those Tamiya ones you speak of.

Now, I might try n see if the speed control you guys hate so much lol and if its not sufficient i'll chuck it.

Ijust had a question about wiring the green wires to the motor. I dont really see any connectors to connect it to. Any suggestions? theres two tiny metal spikes on the top of motor maybe that??

thanks in advance.....i will do a google search to see if theres a model boat club in my town. I dont think there is though.

The controller/radio is a Aristo-Craft Challenger 250 @ 75mhz so i think its good right?

im going to the store today to see if they have the proboat esc and get a 6 cell 3000mah nickel metal battery pack. and some tamiya connectors lol.

I understand you would just like to see the boat run, even if the speed controler is out dated, keep us posted, by the way, the boat looks like the 1/20th scale Dumas, with the fiberglass hull, that is an exellent kit, I hope years down the road someone in my family would take an intrest in my boats. Good luck.

Since I can not view the photos at work here, I want to ask if you have an in-line fuse somewhere in the system. If not, you'll want to add one. Especially if you convert to a Proboat ESC. The Vipers are reputed to use SmartFETS, which are transistors that detect an overload and automatically shut down. I would still hedge my bet with an in-line fuse.

Let us know what the hobby store recommends for an ESC. They may not carry ProBoat or will try to sell you something already on the shelf. For a single motor setup, you can't go too far wrong however. Let us know how it goes from here. Post photos if you run into trouble.

Our club has about 100 boats and about 40 of them run the proboat.
I run 8 proboats in my 6 boats, One of my boats runs 2 Graupner 700 12v speed motors with one proboat, the only problem I have seen is when someone tries to put more than 12 volts which they are rated for, or like I did once reverse the polarity on the battery.
Viper 900 motors are about 580 +- RPMS per volt and dont pull that many amps.
On this scale boat thread, a few stories down you can see my 109 with 3 motors and 3 proboat escs.
The one thing I do not like about the proboat escs is it is hard to get a slow speed from them.

Ok, I been driving all over my town looking for a hobby/toy store. No luck. I tried Radio Shack toys r us n they dont even have it.

Do you guys know of any commercial electronic stores that would carry the battery i need that will power this boat??

maybe a best buy or something. Im stuck in a location where real estate is too expensive for a hobby store to survive around here.

How much money is available ?

anywhere from $20-$50 for a battery and ESC.

I mean i might end up buying the proboat esc for 39.99 online. But thats after i see if the boat will run sufficient enough for me with the esc i have now. All im trying to do now is power it up. I just need a battery. Im not too sure which battery i need besides the one mentioned 6 cell 3000mah nimh battery pack.

There used to be a bb shooting bunch of boats down there. I will try to find them for you.

Use the info at www.taskforce100.org

The only place I know of in NJ is Ultimate Hobbies. They do have a store front somewhere, but I have ordered from them as they have excellent battery prices and free ground shipping. Here is a Venom brand 6 cell NiMH battery pack. [link=http://www.ultimatehobbies.com/istar.asp?a=6&id=VNR1532!1001]venom battery pack[/link]

Web site said calif.

California. You are correct and I am cross-eyed. Well, if you can't find it locally, you may still need to mail order.