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V twin double acting oscillating engine.

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Mark P.19/07/2015 20:11:17
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603 forum posts
6 photos
Hello all, I am looking for a set of drawings/plans for a small V twin double acting oscillating launch engine. I have trawled the internet to no avail,I seem to have gone round in ever decreasing circles. Can anyone point me in the right direction please?
Regards Mark P.
Bazyle19/07/2015 22:05:04
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4688 forum posts
186 photos

There is probably a Malcolm Beak design on Paddleducks otherwise if no responses here ask on Modelboatmayhem.

Thor20/07/2015 05:34:28
1109 forum posts
31 photos

Hi Mark,

The Model Engineer magazine (Jan. 2003 to Nov 2003 IIRC)ran a series of articles by Colin Pape on oscillating steam engines. One of his engines was a twin V double-acting.

You can just enter the authors name here and search for the relevant issues.

Thor

Edited By Thor on 20/07/2015 05:36:05

Old School20/07/2015 08:04:32
241 forum posts
8 photos

Reeves do a V twin double acting engine, unfortunately it does not always self start in forward and reverse the V is not wide enough. Mine powers a small radio controlled Victorian steam launch.

David Clark 120/07/2015 08:43:48
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3357 forum posts
112 photos
10 articles

Lots of designs on the internet. Try john-Tom.com

Mark P.20/07/2015 11:43:42
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603 forum posts
6 photos

Thank you for the replies, I tried John-Tom David but there was nothing suitable there. Is there anywhere where I can buy plans from have tried myhobby store.

Regards Mark P.

Graham A20/07/2015 11:49:01
6 forum posts

I have the Stuart Models stationary steam engine, twin oscillator plans,they relate to the castings kit and were bought from them when they were on Guernsey.

Gas_mantle.20/07/2015 11:51:56
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359 forum posts
269 photos

Why not just take the design of an existing double acting single and modify it into a twin version ?

Ian Hewson20/07/2015 11:53:45
259 forum posts
24 photos

Blackgates do a vee twin reversible engine.

Mark P.20/07/2015 12:15:11
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603 forum posts
6 photos
Hello, I have thought about that Peter and that is one option.but I would like to build a tried and tested one. I don't want to buy a kit as I wish to build from scratch.
Regards Mark P.
Roger Holebrook20/07/2015 12:26:00
8 forum posts

Can I suggest the article "starting in steam" by Peter Arnot , in Model boats magazine commencing in June 1988. Just as a matter of interest, there is also a four cylinder version with both boiler and boat design.

I am building both the two and four cylinder versions myself.

Roger

JasonB20/07/2015 13:26:25
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Moderator
16055 forum posts
1687 photos
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Couple here but not sure if they are double or single acting, first one could be as it says "duplextype"

Here and here

john carruthers20/07/2015 15:03:52
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595 forum posts
172 photos

What about Brunnel's 'Double Diagonal' drawings (£23).
**LINK**

Gas_mantle.20/07/2015 15:42:14
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359 forum posts
269 photos

John,

That's a useful link I haven't come across whilst looking for something to have a bash at, I'm tempted by those drawings myself but try and simplify it a bit to suit my own skill level.

Has any one built that model and able to comment on it's suitability for a beginner ?

JasonB20/07/2015 15:53:57
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16055 forum posts
1687 photos
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Peter, Mogens Kilde did a simplified version of a double diagonal from barstock that started in ME 4383 that would be an easier build

Edited By JasonB on 20/07/2015 15:58:12

Neil Wyatt20/07/2015 18:47:55
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16446 forum posts
686 photos
74 articles

Truckloads here if you don't mind using castings:

www.ajreeves.com/popular-311-c.asp

Neil

JasonB20/07/2015 18:50:03
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16055 forum posts
1687 photos
1 articles

Truck loads? only one is a double Vee which teh OP wanted and I have a feeling they are single acting

Neil Wyatt20/07/2015 18:55:08
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16446 forum posts
686 photos
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They can all be made as single or double acting, I presume that the 'vee' requirement isn't absolute, as long as it's self-starting.

Neil

John Rudd20/07/2015 19:34:47
1365 forum posts
58 photos

I can confirm the Reeves Pop is a DA steam engine....

I have one and the plans ......just need to build it...

Edited By John Rudd on 20/07/2015 19:35:18

John Rudd20/07/2015 20:26:31
1365 forum posts
58 photos

I should add that the engine can be built single or double acting....

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