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Forum: Aerodynamics

10-04-2018, 06:35 AM

Replies: 24

washout on a biplane wing ?.

Views: 6,451

Posted By buzzard bait

If you are using 1 degree positive incidence on...

If you are using 1 degree positive incidence on the lower wing and zero on the upper wing then you have positive decalage. There is no disagreement.

Forum: Aerodynamics

10-04-2018, 06:27 AM

Replies: 24

washout on a biplane wing ?.

Views: 6,451

Posted By buzzard bait

Thank you, I couldn't find my reference. ...

Thank you, I couldn't find my reference. Aerodynamics is often not intuitive at all. People studied these things intensively years ago, it makes good sense to benefit from what they learned.
...

Forum: Aerodynamics

10-03-2018, 05:38 AM

Replies: 24

washout on a biplane wing ?.

Views: 6,451

Posted By buzzard bait

Mr. Whitehead did not make the incidences the...

Mr. Whitehead did not make the incidences the same because both wings would contribute equally. He knew they would NOT contribute equally and explained the reason. This has been known since NACA...

Forum: Aerodynamics

10-02-2018, 05:51 AM

Replies: 24

washout on a biplane wing ?.

Views: 6,451

Posted By buzzard bait

Yes, I agree, trimming a bipe is not just about...

Yes, I agree, trimming a bipe is not just about stability.

Back to the original question, during the 20s/30s, according to an old timer, it was common to rig bipes with some washout. Some of them...

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