bluesboy

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This is a model of a Barr & Stroud 1/3 scale motorcycle engine. The model was designed by Pieter Dekker and built by Don Ells in 2002. It's bore and stroke is .866"x1.18". It has a displacement of 11.4cc or .695 cu". This model is of a sleeve-valve motorcycle engine produced in the early 1920's by the firm of Barr & Stroud of Glasgow Scotland. The sleeve-valve design is where the piston is located within a sleeve which is located inside the cylinder. The sleeve moves somewhat up and down and rotates back and forth to open and close porting whitch allows this engine to operate in 4 cycle manner.

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This is a model of a Stirling powered tractor.This model was designed by Rudy Kouhoupt and built by Don Ells in 2009. This tractor is powered by a Stirling Cycle Engine aka hot air engine. The heat source for this engine is an alcohol burner.

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This is a model of a 14 cylinder radial aircraft engine. It was designed by Lee K Hodgson and built by Don Ells between 1996 and 1997. It has a bore and stroke of 1.000"x1.125". It has a displacement of 203cc or 12.37 cu". This model is not scaled from any particular full sized engine but is generic of many engines that were manufactured before and during WW 2 and for many years after.

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I decided to take some more shots of Dad's engines in order for you to get a better idea of the actual size of the models. I'm also going to attempt to describe them in better detail. First off is a 45 degree V twin. It aws designed and built by Don Ells (Dad) between 1999 and 2000. It's bore and stroke is 1.000"x1.125". It displaces 29cc or 1,77 cu". This engine has a pushrod valve system. The design goal was to have the engine resemble a Harley Davidson Pan Head of the 1940's and 50's.

In the middle of this thread??? Fascinating... Dave Yeah man I move quick and travel light.

Will do.

I guess I should change that..We've moved to Richland Washington for work and also to be closer to my family here.

Cool. I'll email you several and you can pick out the one you want to use.

Here's the old man still going strong. We'll be celebrating his 80th birthday this week.

Dad's lathe

Rocker Arms

Here's the spark plugs and valves. It's pretty amazing he makes the spark plugs from scratch. Note the nickel shown for perspective.

Heads and pistons.

Here's the oil pan.

Here's the crank,cam shaft and conecting rods for the 6 cylinder.

Here's what Dad is working on now. It's a horizontal opposed 6 cylinder that he designed from scratch. It looks kind of like a Porsche engine to me.That block is about 5 inches long.

Oh yeah all of these engines run. We fired up the 14 cylinder last summer and it was awsome. I'm pretty sure the diameter of the prop is around 22". I'll check on that.