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Old May 16, 2016, 03:34 PM
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Building The Sternwheel Towboat "Sherrie R."

I have started construction of a 3/8" scale, diesel, sternwheel towboat that I am calling the Sherrie H. It is a composite of several towboats. I used a simplified construction as you will see from the photos. The drive will be a chain and sprocket drive from servolink.com. I made my hull deeper than it should be for stability. Attached is the outline drawing of the boat. The numbers in the windows are for Grandt Line castings.

Brad Smith
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Last edited by corlissbs; May 17, 2016 at 02:47 PM.
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Old May 17, 2016, 12:14 AM
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Taking care of the pond.
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Old May 17, 2016, 07:55 AM
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Shanghai'd Expat
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Following. Takes me back to my roots on the Ohio.
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Old May 17, 2016, 10:32 AM
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The Hull

Here is my hull. Since I wanted a stable platform for the wheel, I made the sides out of 1"x6" pine and glued the bottom sheets to it. Yes, it should withstand nuclear war.

I wanted a hull that would not tip over, as the Dumas Myrtle Corey does and does not get blown around as some other shallow hull boats do, so I deepened the hull. I had seen a sternwheeler at this year's NAMES show that the owner said he deepened the hull for the same reason and it works great. So I copied the proportions and scaled it up to my size. He had to change from 2 rudders to 3 because of the added depth. Easy adaptation to make

The hull is 24-1/4" long, which is a manageable size.

Brad
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Old May 17, 2016, 03:12 PM
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boat butcher
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Mark
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Old May 18, 2016, 10:35 AM
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The Deck Is Added

I finished the deck. It will be epoxied to the hull after I coat both with fiberglass resin. Since riverboats run low in the water, I added the cowling to keep any water from getting into the hull. I learned that from building the Zippkits Tugster. By the way, Tugster is a lot of fun also.
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Old May 18, 2016, 11:09 AM
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One of my favorite subjects, but IF I ever plan to build another Sternwheeler Towboat again I would go with a split drive similar to the Wild Goose mentioned here by John Fryant:
http://www.rcgroups.com/forums/showp...3&postcount=54
With its indipendant drive it has the benefit of being able to turn tighter, and if a one chain snaps you can still get back to shore.

Watching
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Old May 18, 2016, 01:42 PM
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I looked at that possibility. On some of the split drives, each wheel could move independently of the other. One paddlewheeler at the NAMES show had a bevel gear drive and a split wheel. I will post a pic of this boat. I believe that at least one segment of the drive should be O-ring drive belt. Then when somebody tries to move the paddle by hand, there is something there to "give", instead of being solidly geared all the way to the motor.

Some full sized boats had one chain drive and some had a two chain drive. I plan to go with a single chain, since only one chain will be pulling anyway, unless the chain stretches. I am not going to worry about a chain breaking. I can always change this later, if I decide. Never really thought about the chain breaking.
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Old May 18, 2016, 03:45 PM
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Center Drive

Here are 2 pics of the boat at the NAMES show with the split wheel and bevel gear drive.
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Old May 18, 2016, 05:55 PM
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It has been a week since I contacted servolink.com. No reply to my email. They don't answer their phone. The buttons on their website for ordering do not work. I gave up and ordered my chain and sprockets from Micro Mark. It is the same product, but at a higher cost. But al least I will have them.
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Old May 22, 2016, 08:57 PM
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Quote:
Originally Posted by corlissbs View Post
It has been a week since I contacted servolink.com. No reply to my email. They don't answer their phone. The buttons on their website for ordering do not work. I gave up and ordered my chain and sprockets from Micro Mark. It is the same product, but at a higher cost. But al least I will have them.
Have you tried www.servocity.com? They have all kinds of stuff, including chain drives, I think.
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Old May 31, 2016, 03:42 PM
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Chain & Sprockets

Thanks, John. I see that I could have got the chain and sprockets from them also. Serve-o-Link finally did call me last week and I was able to place an order. I am waiting for the order to arrive. I would not recommend them to anybody. Use john's distributor.

Brad Smith
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Old May 31, 2016, 03:48 PM
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House & Upper Deck

I am gluing the upper deck to the deck house. Lots of weight to hold the contour until the glue dries. The holes fit Grandt Line windows and doors.

Brad Smith
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Old May 31, 2016, 09:19 PM
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Looking great Brad. Looks like you use everything in the shop to hold things together for gluing. I've used that technique many times. Love sternwheelers, keep the pictures coming. jerryj98501
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Old May 31, 2016, 10:29 PM
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Quote:
Originally Posted by jerryj98501 View Post
Looking great Brad. Looks like you use everything in the shop to hold things together for gluing. I've used that technique many times. Love sternwheelers, keep the pictures coming. jerryj98501
+1 .

Mark
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