Subject: [harryproa] Re:: Asymmetrical Profile |
From: "realink@iprimus.com.au [harryproa]" |
Date: 8/1/2017, 3:40 PM |
To: <harryproa@yahoogroups.com.au> |
Reply-to: harryproa@yahoogroups.com.au |
interesting
draw a line across the mid chord, dissect it with a line to either tip
thats the angle of zero lift
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