Side Jumps -- How are they done?

Side Jumps -- How are they done?

Post by ye7 » Fri, 02 Jul 1993 22:42:36


While at the East London Kite Festival at Hackney a couple of weeks
ago I was watching a guy fly a stack of three 12' Flexifoils. These
kites seem to be considerably more powerful than the 10' version (of
which I have two). He was able to jump even though the wind was only a
light to moderate breeze, nowhere near enough for me to even consider
jumping.

However, the thing that interested me was, that as well as skudding
about and doing the normal downwind jumps, he was doing what someone
else called side jumps. I've never seen anyone do these before. It
seems that you can use the kites to swing yourself around in a wide
arc while making little downwind progress. The landing looked a little
awkward but he was moving quite a distance even when the wind was very
light.

Since then I've been trying to work out how to do these jumps. I have
a feeling that I need a larger stack, or more wind than I've had
available up to now, but I'm not sure about the technique. Does
anybody else do side jumps? If so would it be possible to give me any
pointers?

Many thanks,

Chris
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Side Jumps -- How are they done?

Post by Andrew Beatt » Sat, 03 Jul 1993 16:37:34

Quote:

>It seems that you can use the kites to swing yourself around in a wide
>arc while making little downwind progress.

>Since then I've been trying to work out how to do these jumps. I have
>a feeling that I need a larger stack, or more wind than I've had
>available up to now, but I'm not sure about the technique.

Yes, you need a larger stack!  If it is big enough, you can almost
treat it as a rope attached to a hook in the sky.  You can just
run and swing on it.  This is a simplification, but if you try it on
something big enough (6 10' Flexies, 3 12' Flexies, 6.4m Peel etc)
with long lines, you'll soon pick it up.

Andrew
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Side Jumps -- How are they done?

Post by ye7 » Thu, 08 Jul 1993 21:40:09

Quote:
Andrew Beattie writes:
>Yes, you need a larger stack!  If it is big enough, you can almost
>treat it as a rope attached to a hook in the sky.  You can just
>run and swing on it.  This is a simplification, but if you try it on
>something big enough (6 10' Flexies, 3 12' Flexies, 6.4m Peel etc)
>with long lines, you'll soon pick it up.

Thanks for the advice.

Is a 12' FF really as powerful as two 10'ers? Is a 6.4m Peel really as
powerful as six? The word `awesome' immediately springs to mind!

When I started flying Flexies I thought this was going to be an
inexpensive sport (compared to windsurfing at least).  I was rather
naive in thinking you couldn't possibly need more than four ten foot
Flexies.  How am I going to explain this to my SO? I'm sure I'll think
of something :-) It's definitely time to bring my stack up to three
10'ers at least though. Or should I add a 12'er? I always expect there
to be problems with oscillation in stacks of mixed size FFs, does this
happen?

Does anybody know when the Flexifoil patent ends?  Will this make a
significant difference to their price?

Chris
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Side Jumps -- How are they done?

Post by Andrew Beatt » Fri, 09 Jul 1993 16:23:14

Quote:

>Andrew Beattie writes:
>>Yes, you need a larger stack!  If it is big enough, you can almost
>>treat it as a rope attached to a hook in the sky.  You can just
>>run and swing on it.  This is a simplification, but if you try it on
>>something big enough (6 10' Flexies, 3 12' Flexies, 6.4m Peel etc)
>>with long lines, you'll soon pick it up.
>Is a 12' FF really as powerful as two 10'ers? Is a 6.4m Peel really as
>powerful as six? The word `awesome' immediately springs to mind!

Hehe! by "big enough" I meant a kite or stack that is so big that
you rise above the "my kite pulls harder than your kite" argument,
because it is the weight/inertia/friction of the *flyer* that limits
the pull.  Anything that feels like holding onto an articulated lorry
will do the trick.

A 12' flexi has 3' of 8mm carbon rod in the centre.  This is the portion that
delivers most of the pull.  The 12' has 6' of 12mm carbon rod in the centre
(and a larger chord), so it is not unreasonable to expect twice the pull
(for something not too far distant from twice the cost :-( )

A 6.4m Peel probably doesn't give the same max power, but gives it's power
round more of the window and is easier to launch and pack away.

Quote:
>When I started flying Flexies I thought this was going to be an
>inexpensive sport (compared to windsurfing at least).  I was rather
>naive in thinking you couldn't possibly need more than four ten foot
>Flexies.  How am I going to explain this to my SO? I'm sure I'll think
>of something :-) It's definitely time to bring my stack up to three
>10'ers at least though. Or should I add a 12'er? I always expect there
>to be problems with oscillation in stacks of mixed size FFs, does this
>happen?

I don't like mixed stacks.  it's just messy.  Don't think that it stops
at 6 10's tho.  If I buy any more flexies, I'll buy another 6, to take it
to a dozen (this is beginning to get expensive) but I regret buying
the flexies because Peels are so much better:

Tighter turning (on less arm movement)
wider power window
much better max-to-min power ratio
easier to launch
you can stall l them to fly them backwards (eg: for landing)
completely soft - less likely to kill bystanders
not stacked - no stack problems
quicker to setup
more convenient pack size and shape
cheaper (than equivalent flexi stack)
slower (this is a significant advantage in buggy racing)

Hmm...  Perhaps I should join their sales team :-)

Andrew
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