Stearman build

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3 years 11 months ago #22569 by JRI
Replied by JRI on topic Stearman build
Crikey, that is a complex hinge line - do you know if there was an aerodynamic reason to make it so Kevin?

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3 years 11 months ago #22571 by kevinross
Replied by kevinross on topic Stearman build

JRI wrote: Crikey, that is a complex hinge line - do you know if there was an aerodynamic reason to make it so Kevin?


The problem is created because the spar depth tapers at the tips. These pics on the unfinished elevator show what it would look like without that reverse cone shape. So there might be an airflow and drag issue but i suspect its more down to aesthetics.
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3 years 11 months ago - 3 years 11 months ago #22585 by kevinross
Replied by kevinross on topic Stearman build
Ive now completed the stab & elevators with all the shrouded hinge points. The central pivot wire is secured with this m2 screw. I do like the full and free movement which can be achieved with this hinging method.
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3 years 11 months ago - 3 years 11 months ago #22586 by kevinross
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All the tail feathers are now finished and ready for covering but a "BIT" more construction first
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3 years 11 months ago #22587 by MikeSeale
Replied by MikeSeale on topic Stearman build
Looking good, Kevin. I might have missed it in an earlier post, but how big is this model?

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3 years 11 months ago - 3 years 11 months ago #22590 by kevinross
Replied by kevinross on topic Stearman build
its 1:4.3 scale, 89" span and will be at 25lbs + depending on how much more metal i add.
Last edit: 3 years 11 months ago by MikeSeale.

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