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Adding a couple inches in the middle

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Woodwings

Member
Joined
Mar 29, 2019
Messages
7
I'm considering a Druine Turbi, and some advice given in response to my intro post was to make sure I'd fit before launching into a project. Makes scary sense.

I acquired a set of plans that show the inside width of the rear cockpit as 576mm, or 22.6 inches (the frame behind the cockpit is 610 mm, with a 17 mm longeron on each side). That's about the width of my shoulders. I wouldn't want to be rubbing on the sides, and also would need some more room if wearing a jacket.

My question for those of you with design experience is whether I would be opening an unjustifiably big can of unintended consequences by adding somewhere between two and four inches to the center of the spars and fuselage to create a little more clearance.

I really like this design, but if I couldn't be reasonably comfortable I should keep looking for a design that suits me better.

Thanks.
 
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