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Author Topic: Aerobe tension and tow point measurements  (Read 2247 times)
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iwannafly
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« on: January 11, 2010, 07:09 AM »

I have a small problem with my daughters FW Aerobe. When I tried to put it together for the first time, the tension on the spine came undone. Angry I am not sure I set it right. I flies pretty good, but not as flat as it looks in the video posted by WinterDaze. Nice video by thy way.
AEROBE 1._0001.wmv
Can anyone give me the lengths for each part of the bridle and the tip-to-tail measurement of the spine when the kite is assembled. It may be helpful if there was a maximum measurement to show the distance of the spine to an imaginary line drawn from the nose to the tail to show the right amount of flex there should be in the spine.
Any help would be great.
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thief
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« Reply #1 on: January 11, 2010, 07:29 AM »

on mine there was actually a good curve in that spine.....
the best thing to do is to play around with the tension..see what works best for you......this is also my way of covering up the fact hat i lost the original tension as well.....they should put a mark on the tension line to give you a place to start from.....

your bridle did not have some knots in it? i remember seeing something about there being a couple of different bridle setups.
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mikenchico
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« Reply #2 on: January 11, 2010, 07:44 AM »

Yeah no marks, others have stated that you can do a bit of tuning with the spine tension, flatter gives a better glide, more curve and it'll rock back & forth like a leaf falling requiring you to keep some tension on the line to achieve a glide. The high curve was the stock setting since I fought the rocking thing without much success the first flights.

Definitely play around with it to find something to your liking. The first batch had differences in the bridling too when people started comparing them, I don't recall ever seeing a consensus on the proper bridle, I have not played with mine at all since it seems to work as-is, but I did allow the spine to be a little flatter after I undid it per Frazer's suggestion that it assembled a bit easier if you undid it.

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Dano
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« Reply #3 on: January 11, 2010, 09:46 AM »

There are some measurements here for you iwanna...
http://www.gwtwforum.com/index.php?topic=1295.msg15711;topicseen#msg15711
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Dano
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« Reply #4 on: January 11, 2010, 09:50 AM »

Bridle spec i have noted is
16"top, 5"bottom, 3"towpoint

that doesnt sound right, maybe i got the top and bottom transposed. ??
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iwannafly
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« Reply #5 on: January 11, 2010, 10:03 AM »

 
Quote
others have stated that you can do a bit of tuning with the spine tension, flatter gives a better glide, more curve and it'll rock back & forth like a leaf falling requiring you to keep some tension on the line to achieve a glide.
I found that the kite likes to weave back and forth until you get some string out. This is of course without the tail in SUL/UL winds. If I take a bit of curve out of the spine it should glide better correct? Will it also help the zig-zagging when flown in light winds?

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WinterDaze
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« Reply #6 on: January 11, 2010, 03:30 PM »

Hey Jim, my pleasure! I'm glad you enjoyed it. Smiley



Hey IWF,

I too, have had the tensioner come undone, but I've just measured from the end of the sail to the tip of the spine at 3.5cm, it's a 'my setting' but it's what I was using in the video I shot.

With regards to the bridle, Bell's early examples of the Aerobe came with multiple knots on the upper leg, in discussion with Bell it was explained that the need for multiple settings was not necessary as the kite was doing well flying off the 'default mark'. I have an early version so I have the 4 'settings'. I've had a go on the others but I think Bell was pretty much on the money with the default mark...


But... if you want to play....

Mark 1: 130mm
Mark 2: 210mm
Mark 3: 240mm
Mark 4: 270mm

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iwannafly
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« Reply #7 on: January 12, 2010, 06:01 PM »

Thanks WinterDaze. I will check the Spine tension and the tow point and give it anoter try.
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normofthenorth
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« Reply #8 on: January 12, 2010, 10:56 PM »

If you come out to one of the Toronto Kite Fliers events in the Spring or Summer, you'll see a bunch of other Aerobes, SOME of which haven't lost their original settings!
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Norm in Toronto
iwannafly
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« Reply #9 on: January 13, 2010, 07:46 AM »

Thanks Norm. I might just take you up on that.
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