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Scale Model Engineering Steam, gas and hot air model engines, tractors, trains and accessories. Machining and milling castings.

Scale Model Engineering

I F Allman in 1/3rd Scale from Alyn Foundry


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Old 06-17-2019, 02:55:58 AM
JasonB JasonB is offline
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Default I F Allman in 1/3rd Scale from Alyn Foundry

About this time last year Graham Corry of Alyn Foundry fame was persuaded to do a small run of castings from some of his former range. Among these were 3 sets of the I F Allman engine castings, the catch was that as only three pre-production engines had previously been made there were no drawing to build to.

Armed with the patent drawing and a few photos of the other models I produced a set of drawing as I built the engine.

It is 1.5" bore x 2" stroke with 10" flywheel. Propane fueled with hot tube ignition. Governor controls gas flow though it's not that effective.



https://www.youtube.com/watch?v=tmyksPR3Kr4










Last edited by JasonB; 06-17-2019 at 03:28:05 AM.
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Old 06-17-2019, 11:19:25 AM
chrsbrbnk chrsbrbnk is online now
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Default Re: I F Allman in 1/3rd Scale from Alyn Foundry

can we get the drawings? I've been wanting to build an inverted
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