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Ok, now we're going to get a bit more complicated. Before you start trying to get your head round this, it's useful if you understand the way that the pump
system works for boats with bags. Read the relevant page on this site and try to have a look at one in the flesh.
Now, the good news here is that you still use a continuous halyard in this system, and you don't need anything like as much elastic as the pump-up system for
boats with bags. Hurrah !
Start off by copying a conventional pump-up system up to and including the northfix cleat. So:
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Comes back down inside the mast and pops out at the foot. Goes round a pulley. It's the white one. So far, big deal, but note the red elastic on the other
pulley.....
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Now it gets more interesting. It heads for the back of the boat and past the cleat to the usual floppy block and pump system (below). And there's that red
elastic again.
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To chute & patch on kite
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To mast and top of kite
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To block on red elastic
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So, blue handle pumps it up, green handle pumps it down again, red elastic tensions the whole lot, and you're done.
Except that the tension of the red elastic, which you need when pumping up or down, puts a crimp in the kite when it is flying by pulling on the downhaul all
the damn time. So you need to be able to de-tension the red elastic when the kite is flying, which you do by uncleating a bit of rope.
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