Casting a Wright Broithers Model B Crankcase

[JasonBModerator @jasonb]

I'm sure that the cold weather is keeping a few of you in the armchair this afternoon so to keep you from dropping off after lunch this is a video showing the pattern making, moulding and casting of a Wright Brothers Model B crankcase from one of their early aircraft that was posted by Mike Remus editor of MEB mag. Its for one of three replica engines built.

Video

J

PS its about 2hrs long so should keep you awake until afternoon tea

Edited By JasonB on 03/02/2015 12:37:50

[JasonBModerator @jasonb]

[HomeUseParticipant @homeuse]

Thats a lot of work but it looks like a good clean casting – I did fast forward a bit in places – Bit to involved for my back yard setup

[frank brownParticipant @frankbrown22225]

How did they design that crankcase? Did they free hand the core structure first then add the wall thickness to it. Its easy to draw a cross section, but before CAD, how to transform this around 180 degrees?

Frank

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