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Author Topic: 4D bridle measurements  (Read 743 times)
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Gu1234
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« on: June 03, 2014, 11:59 AM »

I got my new 4D and really enjoy flying it, but it seems like it doesn't fly as easily in low wind like in some of the indoor videos on youTube.
If some one can take a look at my bridle measurements and setup that would be really nice.

Also I hope some one might find those measurements helpful too.
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Hadge
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« Reply #1 on: June 03, 2014, 12:21 PM »

The measurements in your picture seem about right. The measurements I took from my 4D were

Uphaul - 35.5cm
Outhaul - 40cm
Inhaul - 41cm
Turbo - 5cm

I found it flew better with the inhaul line larkshead moved ABOVE the turbo knot making it a 3 point bridle.
Also I moved the inhaul spine attachment from above the 'T' to below. Adjustment was set in the middle ( I tried it with the adjustment in the furthest -high wind- setting but didn't like it.

Also Frame specs.

Upper spreader 39.5 cm x2.5mm solid carbon
Lower Spreader 48.5cm x 2.5mm solid carbon
Spine                  57.5cm x 2.5mm solid carbon
Lower L/E           54cm x 2.5mm  solid carbon
Upper L/E            54cm x 2.5mm solid carbon
Standoff              18cm x 1mm solid carbon

Distance from end of lower spreader to nearest edge of Inner standoff 18.5cm
"       "        "      "       "     "     "         "     "     "      "     "   Outer standoff  29cm

I also cut the 50' lineset down to 32' for outside and 18' for very low wind/indoor.
« Last Edit: June 03, 2014, 12:23 PM by Hadge » Logged

Age and cunning will always overcome youth and skill!

In the bag - HQ Shadow, Prism 4D, Flying Wings Soul Mid Vent, HQ Jive (1), Spiderkites Zodarion, 'Paw' modded HQ Maestro ll, HQ Delta Hawk.
Gu1234
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« Reply #2 on: June 03, 2014, 01:24 PM »

Wow thanks a lot for the great reply.

I have a few more questions:

1. Why move the inhaul bellow the T?
2. Where exactly did you move the inahul larkhead? If I just move it close to the sail it looks like it will slide back when I fly the kite.

I'm just a beginner struggling to learn anything that's not just basic flying and loops so I really appreciate your help. Smiley

Thank you!
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Hadge
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« Reply #3 on: June 03, 2014, 01:38 PM »

This is the standard set up




I moved the inhaul up to the knot that meets the uphaul/outhaul like this



It's unusual for the inhaul attachment to the spine to be above the 'T' so I tried it below and it seemed to work better. If you loosen off the loop you can slip it over the T easily enough.
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Age and cunning will always overcome youth and skill!

In the bag - HQ Shadow, Prism 4D, Flying Wings Soul Mid Vent, HQ Jive (1), Spiderkites Zodarion, 'Paw' modded HQ Maestro ll, HQ Delta Hawk.
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