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Forum: Tech Log

12th Jan 2011, 18:06

Replies: 52

Aerodynamic Center

Views: 40,161

Posted By Lightning Mate

...kinnel...wossat mean mate....................?...

...kinnel...wossat mean mate....................?

I shall now leave the thread because it's becoming silly, but before I go - ZERO LIFT!
...

Forum: Tech Log

12th Jan 2011, 11:06

Replies: 52

Aerodynamic Center

Views: 40,161

Posted By Lightning Mate

Yes, but..... In simple terms we use a...

Yes, but.....

In simple terms we use a point termed the centre of pressure, which is the point on the wing chordline where the total lift may be considered to act.

In reality this point...

Forum: Tech Log

12th Jan 2011, 07:21

Replies: 52

Aerodynamic Center

Views: 40,161

Posted By Lightning Mate

Clive, Thank you for the PM - I have...

Clive,

Thank you for the PM - I have replied. :)

Forum: Tech Log

11th Jan 2011, 17:54

Replies: 52

Aerodynamic Center

Views: 40,161

Posted By Lightning Mate

Sorry - I have total understanding...

Sorry - I have total understanding failure.........

The tailplane force has absolutely nothing to do with this argument. :uhoh:

Forum: Tech Log

11th Jan 2011, 17:51

Replies: 52

Aerodynamic Center

Views: 40,161

Posted By Lightning Mate

Sorry CliveL, we can. We may use any point...

Sorry CliveL, we can.

We may use any point aft of the wing trailing edge and any point forward of the wing leading edge.

I use the trailing edge and the leading edge simply because my...

Forum: Tech Log

11th Jan 2011, 17:46

Replies: 52

Aerodynamic Center

Views: 40,161

Posted By Lightning Mate

Oh dear oh dear.....!!!! It seems that...

Oh dear oh dear.....!!!!

It seems that further explanation is required. There is no way I can give you what amounts to three hours of tuition on this subject on a thread such as this.

Even...

Forum: Tech Log

11th Jan 2011, 15:28

Replies: 52

Aerodynamic Center

Views: 40,161

Posted By Lightning Mate

Here you go -cambered aerofoil zero lift pitching...

Here you go -cambered aerofoil zero lift pitching moment:

http://i636.photobucket.com/albums/uu82/Lightning_29/0LiftPitchMoment1.jpg

Forum: Tech Log

11th Jan 2011, 15:19

Replies: 52

Aerodynamic Center

Views: 40,161

Posted By Lightning Mate

I'll post you another picture soon. :)

I'll post you another picture soon. :)

Forum: Tech Log

11th Jan 2011, 11:07

Replies: 52

Aerodynamic Center

Views: 40,161

Posted By Lightning Mate

Thank you John. I have to teach all this...

Thank you John.

I have to teach all this stuff. If anyone wants other diagrams I have hundreds. :)

Forum: Tech Log

11th Jan 2011, 09:03

Replies: 52

Aerodynamic Center

Views: 40,161

Posted By Lightning Mate

I have constructed this graph for instructional...

I have constructed this graph for instructional purposes.

It illustrates Cm for a positively cambered aerofoil, and may help.
...

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