I have looked all over this site and all over the web for spine information. I found a chart that tells you which arrows you need at a specific draw length and pull weight. I want to know the spine of Micro Flight arrows 1-12 on a standardized spine tester set at the standard 26" C to C with the standard 2# weight applied. Jim :knothead:
I would like to know also I just got soe as a gift. Thanks to Elbow.
Jeeps
Try this site. www.archeryarchives.com/microflite.html. (http://www.archeryarchives.com/microflite.html.) If memory serves, the site also has spine charts for other brands of fiberglass shafts manufactured during that time.
This link did not open for me at all. I have had trouble with this site in the past with the pictures not showing up. I cant find anything about arrows and the search does not work on the site. Jim
Sorry. It's been a while since I used it,2005 in fact. That is the web address on the bottom of the pages with the charts on them.
I am just not getting anywhere with the archery archives. I deleted the /microflite.html from your link and finally got the actual web site but nothing on arrows except pearson arrows. Jim
http://www.archeryarchives.com/microflite.html
On the AA site on the right of the front page it says glass arrow shaft spine charts.
Microflites were introduced in 1961 with shafts offered in sizes 0-10.
(http://i46.photobucket.com/albums/f143/4runr/microflite1.jpg)
(http://i46.photobucket.com/albums/f143/4runr/Microflite2.jpg)
In 1971 the shafts were offered in sizes 0-12.
(http://i46.photobucket.com/albums/f143/4runr/micro711.jpg)
(http://i46.photobucket.com/albums/f143/4runr/micro712-1.jpg)
Thanks much this helps a lot and now your provided link works too. Jim
Spine defelection for some of the sizes I have. #2 size .849, #4 size .671, #5 size .611, #6 size .582, #7 size .543, #8 size .455, #9 size .420. #10, size .3.90, #11 size .321. Hope this is what you where looking for.
Helps a lot now I know the general range but the problem i now see is i am getting .770 on #4s and .517 on #8s which makes us 5# apart on one then #8 on the other. jim
I smell plastic...
I have #11's, yellow shafts, that I bought in the mid or so 60's. They were made by Browning whom I believe had the original patents on them. They sold it to Bear at some point. I know they went up to a #12 at the time I bought them.
I just built a really good and accurate spine tester so i will be able to tell the spine now but only for the 3 or 4 sizes I have. Jim
Micro-flites were one of several inventions of Frank Eicholtz of San Diego, CA. He was the first to use fiberglass developed during WW II. The company that developed fiberglass was Narmco and the product was called Conolon. It was used in the first fiberglass fishing poles. Frank put it on his bows, and did the same for Howard Hill and Harry Drake. Harry used it to set flight records.
Frank had a business partner in the 1950's and they made the Micro-flite shafts, unfortunately the partner died in a car accident and Frank lost business as a result.
My #10's are spined at 72#, but shoot better out of a lighter center-shot bow. The older spine charts were based on 1950 bows, and noncenter-shot bows that handled lighter spined arrows.
Bob Swinehart used Micro-flite arrows, #10's with another shaft inside for his 100# bow in Africa.
For more information on Frank Eicholtz, and his inventions, read "The Traditional Way" by Fred Anderson.
Very cool info. Jim