Sorry !

Walter & Group...

Right after I pressed the "send" button, I realized that I had included in my last message a video which might cram some of your computers.  For that I apologize !

Since some of you probably won't be able to get the message at all with its 21 question quiz,  I am re sending the text itself without the video.

Gordy

From Carl McNeil :

Hi Gordy

I recall we discussed this sometime last year, and I cited those papers when we we're discussing loop shapes If memory serves.

You are correct (my understanding) in that the airfoil low pressure/high pressure effect is NOT being refereed to.  

Jerry is spot on in his angle of attack analogy - that's my understanding anyhoo. -  Although most conventional aircraft wings do indeed possess a positive angle of attack - perhaps some confusion also arises here?

The math in the Gatti paper was far to advanced for me to get my head around!

Cheers

Carl

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Carl:   I understand what Jerry means by "angle of attack".

We can take a paper "airplane" with flat paper wings... no airfoil... and make it climb by launching it by hand in an upward and outward direction.  It climbs.

The mechanism of its climb, however, is (I think) more than that of a fly line, because the fly line has no planar (flat) surface to "ride" on the air, so to speak.

Gordy

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

From Jerry Puckett:

Gordy,

 

Makes sense.  Thanks for the attachments!,

 

Jerry
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

                                                                                NEW QUIZ

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

New questions to finish up on our discussion of MENDS :

1.) Define an on-the-water mend.

2.) What is a VERTICAL HUMP MEND ?

3.) When would you use it when fishing a stream ?

4.) Is it performed on-the-water or in-the-air ?

5.) Briefly describe a REACH MEND.

6.) One author described a PARACHUTE MEND in text.  Who is that ?  Cite your reference.

7.) Brieflly describe it.

8.) What is a STACK MEND ?

9.) When would you use it when fishing ?

10.) Would you ever make an on-the-water DOWNSTREAM MEND ?

11.)  When ?

12.) Briefly describe a PUDDLE MEND.

13.) For what is it used ?

14.) For making mends, which is more efficient...  A short rod or a long one ?

15.) Why ?

16.) Would you ever add a CURVE MEND to a REACH MEND ?

17.) For what reason ?

18.) You are trying to place an aerial mend to counter a tongue of fast current 40" out on the river.  What do you do with your line hand after your loop has formed ?

19.) Back in the 1930's & 40's, there were very few salt water fly fishermen. Some of them fishing NE waters, use the term MEND to mean something very different from our present meaning.  Do you know what that was ?

20.)  Would you ever make two aerial mends after your cast ?

21.)  For what purpose ?

Gordy