Stearman build

JRI
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2 years 3 weeks ago #25753 by JRI

Replied by JRI on topic Stearman build

Could flexing of either wing introduce aileron movement in the other wing with that parallelogram mechanism Kevin? Or is the linkage inboard enough not to have a detremental effect?

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kevinross
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2 years 3 weeks ago #25754 by kevinross

Replied by kevinross on topic Stearman build

The interplane struts will be rigged and fixed so both wings incidence are locked - Ive made rigging jigs to hold enable this.

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kevinross
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2 years 1 week ago #25768 by kevinross

Replied by kevinross on topic Stearman build

A day making rigging jigs is now paying off. This dry run shows the wing dihedrals and lateral positions are perfect but plumb lines from the upper to lower wing leading edges are + 6mm and - 6mm out. So rather than use the rigging to force the wings into line i’ll get my bastard file out (or should that be needle files) to make adjustments.

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kevinross
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1 year 5 months ago #26303 by kevinross

Replied by kevinross on topic Stearman build

No flying at the moment so an opportunity to restart my Strearman build. Some time ago John Banister very kindly machined these discs to construct a plug to make the cowl.

Ive using a shaft mounted in the drill press to align the discs when gluing up

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Phil Ford
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1 year 5 months ago - 1 year 5 months ago #26304 by Phil Ford

Replied by Phil Ford on topic Stearman build

Not too bad to restart the build. Last post/effort was 12th April.

Last edit: 1 year 5 months ago by Phil Ford.

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kevinross
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1 year 5 months ago - 1 year 5 months ago #26305 by kevinross

Replied by kevinross on topic Stearman build

The layers are now glued up into front and rear halves. Because my lathe has not the capacity i've adapted my drill press to spin the plug for final finishing.

Now i'm out of the comfort zone Q - i need a separator (see the blue line ) between the front and rear plugs which will allow me to fill and sand the plugs but allow them to split cleanly - Any suggestions what i could use. (

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