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Forum: Tech Log

14th Apr 2013, 13:36

Replies: 12

Increased drag swept wing high Mach nr.

Views: 4,578

Posted By Spir4

Okay here are two theories: 1) Why the...

Okay here are two theories:

1)

Why the drag decreases with wing sweep in subsonic speeds below M2.1:
The part of the wing behind the mach cone 'knows' the air is coming, so the airflow can...

Forum: Tech Log

14th Apr 2013, 11:19

Replies: 12

Increased drag swept wing high Mach nr.

Views: 4,578

Posted By Spir4

Okay, but if you take the relative thickness into...

Okay, but if you take the relative thickness into account, and the aircraft is below M2.1, a higher relative thickness (as is the case with increased wing sweep) should also produce larger drag...

Forum: Tech Log

14th Apr 2013, 08:37

Replies: 12

Increased drag swept wing high Mach nr.

Views: 4,578

Posted By Spir4

Why would that be? And doesn't an increase in...

Why would that be? And doesn't an increase in thickness creates an increase in drag?

Forum: Tech Log

11th Apr 2013, 07:15

Replies: 12

Increased drag swept wing high Mach nr.

Views: 4,578

Posted By Spir4

Then, why is the drag less below M2.1? Why...

Then, why is the drag less below M2.1? Why suddenly, above M2.1, the drag gets higher for a higher swept-back wing?

I assume every other aspect of the wing remains the same. According to the...

Forum: Tech Log

9th Apr 2013, 16:35

Replies: 12

Increased drag swept wing high Mach nr.

Views: 4,578

Posted By Spir4

Increased drag swept wing high Mach nr.

Hello,

I've been struggling with this for a while, and no one was able to give me a clear answer yet.
Please have a look at the following graph:...

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