Aces High Bulletin Board

General Forums => Aircraft and Vehicles => Topic started by: HL117 on March 01, 2014, 04:23:10 PM

Title: Spit Fire Wing Design
Post by: HL117 on March 01, 2014, 04:23:10 PM
Interesting read for those that find it interesting  :D

http://aerosociety.com/Assets/Docs/Publications/The%20Journal%20of%20Aeronautical%20History/2013-02_SpitfireWing-Ackroyd.pdf (http://aerosociety.com/Assets/Docs/Publications/The%20Journal%20of%20Aeronautical%20History/2013-02_SpitfireWing-Ackroyd.pdf)
Title: Re: Spit Fire Wing Design
Post by: FLS on March 01, 2014, 04:56:29 PM
Nice article.
The word "incidence" is used to describe AOA for high altitude flight and induced AOA of the wingtip vortices. Hopefully that won't confuse anyone.
Title: Re: Spit Fire Wing Design
Post by: DaveBB on March 01, 2014, 06:10:57 PM
Years ago, someone on this board posted that the washout built into the Spitfire's elliptical wing negates any supposed benefits that the elliptical shape would give it.  Thoughts?
Title: Re: Spit Fire Wing Design
Post by: FLS on March 01, 2014, 08:21:15 PM
Quote from: DaveBB on March 01, 2014, 06:10:57 PM
Years ago, someone on this board posted that the washout built into the Spitfire's elliptical wing negates any supposed benefits that the elliptical shape would give it.  Thoughts?

There's a critical difference between reducing a benefit and negating it. Washout increases the induced drag but the trade off is increased control in the stall. Did anyone post data on the actual increase in induced drag from the washout and how that compared to other wing shapes with washout?
Title: Re: Spit Fire Wing Design
Post by: DaveBB on March 02, 2014, 07:48:27 AM
I don't remember if they did nor not.  This was a big thread about critical mach, but it's been years ago.  Did all WWII aircraft have washout built into their wings?
Title: Re: Spit Fire Wing Design
Post by: Skyyr on March 02, 2014, 01:00:40 PM
Quote from: DaveBB on March 02, 2014, 07:48:27 AM
Did all WWII aircraft have washout built into their wings?

No.
Title: Re: Spit Fire Wing Design
Post by: Brooke on March 02, 2014, 01:20:19 PM
Most WWII planes I'm aware of had washout.
Title: Re: Spit Fire Wing Design
Post by: Charge on March 04, 2014, 02:13:05 PM
You might want to dig up the famous David Lednicer report on aerodynamic qualities of P-51, Spitty and 190D.

-C+
Title: Re: Spit Fire Wing Design
Post by: Brooke on March 04, 2014, 03:56:44 PM
Quote from: Charge on March 04, 2014, 02:13:05 PM
You might want to dig up the famous David Lednicer report on aerodynamic qualities of P-51, Spitty and 190D.

-C+

Another graduate of the University of Michigan (along with Kelly Johnson).  Go Wolverines!  :aok