Stearman build

kevinross
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3 months 1 week ago - 3 months 4 days ago #26819 by kevinross

Replied by kevinross on topic Stearman build

Eventually got around to laying up the cowl and spats using the mould I made a year ago. Bending the shaft on this oval roller was a bit help.
I made a balsa ring to reinforce the frontal radius to minimise the amount of resin and weight.

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Last edit: 3 months 4 days ago by Phil Ford.

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kevinross
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3 months 6 days ago #26820 by kevinross

Replied by kevinross on topic Stearman build

Sheer brutality was the only way to split the mould but at last i have a cowl

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Phil Ford
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3 months 4 days ago #26821 by Phil Ford

Replied by Phil Ford on topic Stearman build

A hell of a lot of work Kevin to achieve the basic cowl, etc.

I wonder if someone has a mould laying around gathering dust somewhere in the world that may have saved you some time.

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kevinross
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3 months 9 hours ago - 3 months 9 hours ago #26824 by kevinross

Replied by kevinross on topic Stearman build

The concept seemed quite straightforward 4 yrs ago - How naive i was

Amy way here is the initial placing / fitting of the forward cowl . I had to produce a built it "spider" to interface the two parts

All being well my nephew is producing a 9 cylinder 3D printed dummy engine

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Last edit: 3 months 9 hours ago by kevinross.

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Phil Ford
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2 months 3 weeks ago #26826 by Phil Ford

Replied by Phil Ford on topic Stearman build

Certainly been a major project Kevin, surprised you have stuck at it.

There are full kits and there are kits and make the rest up as you go along. No wonder ARFs are popular!

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kevinross
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1 month 2 weeks ago #26863 by kevinross

Replied by kevinross on topic Stearman build

Having previously moulded the outer shells for the spats, i need an inner pair with flats to assist mounting to the U/C leg adapters.
I poured an equal volume of epoxy & micro balloons into each mould then layered the inner sections
After trimming the edges i fixed small balsa teeth alternatly to aid alignment. They are now fixed with cyan to enable me to join with glass bandage

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