Need Formula Info on Elipiticle VRS. Round coil conversion

[frank c]

I was under the belief that to determine the approximate comparasion size on elipticle vrs. round coils
You add the length and width of the ellipticle and divide by 2 to get an approximate comparision size of a round.
Example

7 x 14 coil = 21 divide by 2 = approx 10.5 inch round comparable coil

Does anyone know if I am on track with this formula ??

Edited January 17, 2013 by frank c

[nvchris]

In elliptical's the width is the biggest factor on depth.

There is no hard perfect formula for what you want.

Use several methods then average the results.

i.e compare total area

compare just the width

width to length ratio

In calculations for statistic use the "law of large numbers" …… the more examples/samples the more accurate the results.

Or just use the nvchris method , big round ones rule!

My personal favorite current 'All around" is the NF- 17EM #2 is the stock Commander RM #3 is the NF-16RM.

[homefire]

This is supose to tell you the Equial Size Round to a given Eliptical Coil.

http://www.csgnetwork.com/circumellipse.html

[frank c]

Thanks Homefire alot of good links info there.

Yes circumference is determined than you can compare to various size round circumferences.

It works out like I had originally thought.

Edited January 18, 2013 by frank c

[Hoser John]

Actually the coil size isn't what matters--it's -who-what-where-and how whats' inside packaged,wraped and or coiled that determines the most bang for the buck-John

[garimpo]

Trevor Ferraresso the CEO of Coiltek says to get a comparison of a elliptical coil to the equivalent size of

round coil just add the length and width of the elliptical and divide the answer by 2.....

[frank c]

Thanks Don for confirming my idea.
Thats the general formula I've been used to using over the years just wanted to see if anyone had anything much different to consider.