Ultraflex (was LONGITUDINAL STABILITY OF FLEXIFOIL?)
Subject: Ultraflex (was LONGITUDINAL STABILITY OF FLEXIFOIL?)
From: email@example.com (Jeffrey C. Burka)
Date: Thu, 27 May 1993 23:43:31 -1000
In article <1993May28.firstname.lastname@example.org> email@example.com (Andrew Beattie) writes:
[re the Ultraflex]
>Both. It is much lighter, much more flexible, much more expensive
>and much easier to break.
"Much more expensive"? How very odd. Over here, the prices are much
better. For a 6' kite, the Ultraflex is ~$25. A stock spar is usually
just under $25. For a 10', though, the Ultraflex is only ~$65, while
the stock spar will cost you over $80. And the 8' Ultraflex is around $10
less than the stock spar.
A guy I know managed to get a set of 10 ultralight fiberglass spars (I'm
not sure where they came from, though they may have been made by Dave
Baressi), which are noticeably lighter than the Ultraflex, for $5 each!
He had bought 10, despite only having 5 Flexis, because he expected them
to break easily. He hasn't had one break yet, though, and with luck he'll
remember to bring me one of them at Wildwood. ;-)
>>In which situation we should use the lightweight spar?
>1) Low or zero wind
Actually, the Ultraflex on the 6' model is usuable in winds up to about 15-20.
Due to the increased flex, the kite is slowed quite noticeably. I know folks
who compete with the Ultraflex even when the winds are high, just so the
kite won't be moving as fast.
I don't have the slightest idea what the upper range of the larger sizes of
(who, between his Ultraflex and his stock spar, has flown his flexis in
wind ranging from almost 0 up to 55)
|Jeffrey C. Burka | "When I look in the mirror, I see a little clearer/ |
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