Paddleducks
Paddler Modelling => Construction => Topic started by: Hankwilliams on April 24, 2012, 11:18:08 PM
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Hi Kim and all
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.....my built of "Marchioness of Lorne" with steam engine now is finished.
Last saturday I did a maiden voyage on a little pond, it was a windy and rather cold day - but the MOL made a good performance.
The engine is a slighly modificatet Graham TVRIA 2 cylinder from a standing to a diagonal engine. The deplacement of the boat is 6,5 kg, so the model dives in a little more than the waterline, but this is not noticeable, the waterline is now slighly below the portholes.
Stability is rather good. The stability in the water increases by fixing small balsa floats under the front sponsons before the paddlewheels (I did this the first time at "Mount Washington). The floats are paintet red and black, so there are unvisible when the model is in it's element and can be removed in seconds. The floads are not absolutely necessary, but if you drive on a windy day like last saturday is produces a feeling of more security .
With the flame tube boiler (dimensions 200 mm lenght and 80 mm diameter) it is possible to drive 40 - 45 minutes continuous.
The gear reduction engine to paddleshaft is 2 : 1, this gives enought power to drive also in small waves against wind.
The original rudder is clearly too small, I`ve extendet, before maiden voyage.
It was a great joy in spite of the cold and windy air, so I nearly forgot, when the water in the boiler was evaporated after more than 40 minutes.
In the beginning of the built I planned a feed pump, but later I did'nt realize this because of the weight.
When you are planning a live steam for the MOL, it's important to reduce weight as far as possible, the decks and roof are made of 0,8 mm plywood covered with 0,5 mm mahagony stripes.
Now I will attach some pictures at the folloing post.
Tom
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Some pictures in the following
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More
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It seems, there are some difficulties with the pictures. But I will try it once more.
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and more...
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sorry, the files are too large, I think I will solve the problem in the next days.
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one more picture...
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more
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I try to attach one more picture
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Sorry, the last was double.
But I hope, also these less pictures gives some nice impression
Tom
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Hi Tom,
Congratulations on your build & Maiden Voyage!
When I first started out I wondered if any of the Mol Hulls would actually sell .. you bought the second and I am very grateful to you for that!
My next worry was would the kits actually perform on the water .. given that paddlers are not the easiest of models.
I had an email from Stuart Badger saying that he planned to put a steam plant in his model… this made me very nervous!
Sadly, Stuart wasn’t able to complete his MOL and that really does make me sad as I’m sure it would have been stunning!
Today I see a MOL on the water .. with a steam plant … well this is a great day!
Many thanks Tom on a wonderful build and putting my mind at ease, helping in the start up of Clyde Model Boats & producing a superb model!
Thanks & Regards
Kim
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Hi PD's....& yes congratulations Tom :clap from the other side of our world :kewlpics ....on your build of the "MOR" .........Derek
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Hi Kim and Derek,
thank you for your congratulations.
Today is a nice sunny day, I think in the afternoon I will do a second voyage.
To the MOL: I made most of my models only after plan. When I first saw a picture of the MOL, I was impressed about the elegant lines - this made the decision for ordering the semi kit.
Even when the hull is very good made, the model was relativly difficult to built, it takes a rather long time and I also suspect a lack of stability.
But this wasn't real. Before the maiden voyage I did several test runs in a plexi glass tube (you see it in 3 pictures) and all was absulutely sufficient.
When the problem of the too large file of the pictures is solved, I will post some more fotos with the MOL in it's element!
Greetings
Tom
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Fantastic looking model :bravo
I have one of these but need to restart after i had a total brain fart and messed up the hull :(. your build shows me and everyone else what can be achieved.
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That is how a model paddler should be powered, very well done. I see you have 1 servo opperating the steam valve, what is the other doing? R.G.Y.
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Thank you.
There is one servo for the hackworth gear of the engine and the other for the steam valve.
Greetings
Tom
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Of course what a fool I should have known. Have been working with oscillators for to long. Although I have built a slide valve but not in a boat yet.R.G.Y.
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Hi,
your engine looks very good, this would be the ideal drive for a bigger paddler.
Yesterday I made a second voyage with the MOL. Now the wheather was fine nearly no wind - it was a pure joy!
Tom
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Congratulations Tom on a great build. I know the pleasure seeing your paddler running with a stean plant can give and it is well worth the extra effort. I have no doubt that electric power is easier to get up and running and looks fine on the water but once I had sailed my first steam powered model there was no going back. In your first post you say the engine is a "slightly modified Graham TVR1A", can you tell us about the nods you did to put it on its side please. Cheers, Ian.
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Hi Ian,
the Graham engine as you can buy is a vertical engine. The alterations referred that I made with simple ways a diagonal engine.
The foundation of the engine is now a acute angled sheet of alu. The engine was turned and is yet fixed with 4 screws at the shorter side of the alu sheet, so that in a simple way the conversion into a diagonal engine was succeedet - you see it at the pictures.
Greetings
Tom
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Hi friends and neigbors,
some pictures at meeting for authors of german model journal on May 12th. at Gernsbach, Black Forest. My MOL and my "China", scale of models is 1 : 48.
It was a nice sunny day.
Thomas
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Thomas.....your China looks spectacular or the water [as she does on land]... :no1b
I have never been impressed with the MoL as even in scale as a model, her lower deck port-lights even in calm water appear 1/3 submerged
So even with epoxy cements, it must be difficult to know that each of the port-light glass windows are 100% watertight
Derek
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:clap :no1b :clap :bravo
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Thanks Derek and Damian.
Through the steam propulsion of MOL the deplacement (6 kg) is extendet. But the port lights are complete watertight.
The next days I will visit my old mother - there isn`t a computer, so I can`t answer further questions until mid of next week.
Thomas
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Hi Thomas,
Being completely and utterly bias i think she looks great!(MOL)
Regards,
Kim