Hi Eddie
I use 40mm and clam up to 65mm. I also have a long drum to help keep the
dia lower for longer. I usually use the clamshells unless the wind is
blowing fairly heavily and then I will go to the 40mm. I don't fly enough to
really have a good handle on the differences but I suspect the dia vs launch
height curve is fairly flat because I have done back to back launches with
and without the clammies and the launch height difference dosen't look that
much. Bear in mind I usually fly about once a month and attend most of the
NZ F3B series so this is not a well measured analysis.
I know Dave James who makes winches also uses 42mm and 65 I think....He has
a website and calls himself Winchnz, maybe a google will find it.
Best Regards
Peter Williams
> Subject: Winch drum diameters
> Message-ID: <[EMAIL PROTECTED]>
>
> Hi Guys ..... I was wondering what drum dia's you are using on your FAI
> winches. It seems that the drum dia's are creeping up a little from when
we first
> built to the F3b winch rules. I remember Nic Wrights winch having a
42mm dia drum some
> time ago. I've just built a new drum this week and expect to try it
> out this weekend This will give me 46mm, 50mm and 60mm dia's and I was
wondering what everyone
> else is doing.
>
> Eddie the Eagle
> in sunny South Australia
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