Armstrong-Siddeley Lynx IV radial

[Stephen Wessel 1Participant @stephenwessel1]

Accurate 1/3 scale working model

[Stephen Wessel 1Participant @stephenwessel1]

This engine has now been run successfully for the first time. It will be on show at MEX, Sandown Park, next week. The drawings are also about finished and will be for sale in PDF format. Castings will also be available by arrangement.

Stephen Wessel

[Martin CottrellParticipant @martincottrell21329]

Hi Stephen,

You can't just make an announcement like that, we need lots of lovely pics please!!!

Martin.

[Stephen Wessel 1Participant @stephenwessel1]

OK point noted. There are now 5 photos taken shortly after the first run.

Stephen

[Neil WyattModerator @neilwyatt]

So that's the full-size. How about a picture of the model?

Seriously, that's very impressive, especially the surface finishes on the components.

Neil

[Martin CottrellParticipant @martincottrell21329]

Hi Stephen,

Thanks for posting the photos. I agree with Neil, superb workmanship!

Regards enviously, Martin.

[Ian S CParticipant @iansc]

That's a great engine, there's not too many full size engines of that type. The RNZAF has one on an Avro 626, but it has a rather delicate crankshaft, on restoration it was flown for a few hours, but the crankshaft was found to be cracked. Rolls Royce welded it. Good to see a model of a 1920 engine.

Ian S C

[GoCreateParticipant @gocreate]

Hi Stephen

I have an interest in Rotary and Radial engines, after reading your very interesting article in ME I was hoping to here more news of progress and here we have it. Very glad to here your model is now running, unfortunately the MEX exhibition to far for me as I am in Aberdeenshire, I would love to see it in the flesh. Be good if you could make the Harrogate show in 2015.

I will be looking for a new project next summer, I think this radial may be a timely contender, I do prefer the larger scale and there looks to be some interesting machining challenges.

Beautiful model, very well done indeed.

Nigel

[Stephen Wessel 1Participant @stephenwessel1]

Thank you all for your kind comments! I didn't know about the RNZAF engine but that wasn't the first cracked c/shaft. I stiffened mine up a shade and made it from EN24, so hoping for the best.

I will put some more photos in the album to show the internals.

Stephen

[Ian S CParticipant @iansc]

The RNZAF Avro 626 is set up in the museum with an old truck with the Huck Starter mounted on it (Model T Ford I think).

Ian S C

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