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Author Topic: Lifting Kites and vertical pull.  (Read 2004 times)
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« on: June 30, 2017, 01:21 PM »


I was flying my power sled yesterday and for the 3rd time now it seems like it pulls away almost as much as it pulls up most of the time.  I'm still very new at this so I'm wondering if there is maybe a change I can make to the bridle to make it fly differently. 

I'm also wondering what some of the best types of kites are for lifting that don't pull away so much?
I'm currently looking at some large deltas as well as a few Conyne kites for starters.  The Cody's are way too expensive for now as are the Doperos if I could find them.  I'd like to eventually try to build a Rokkaku some day so I'd kind of like to stay away from that design for now.

The main thing I'm looking for is a predominately vertical pulling stable lifter to pull up ham radio antennas and maybe a small KAP rig someday.

Here is a pic from yesterdays session.  I had the Sled tied down and got to play a bit with the EO Atom.  Was alot of fun!
20170629_182127 by r3dw0rm, on Flickr

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Location: Richmond BC, Canada

« Reply #1 on: June 30, 2017, 01:39 PM »

A large Genki will fly nearly overhead, often used for KAP.

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« Reply #2 on: June 30, 2017, 03:31 PM »

If you are not familiar with aerodynamics read an introductory book on the subject. One thing that you will learn is that all the forces that create lift in any given airfoil (yes, a kite is a type of airfoil) must be considered to achieve a desired effect, and are parasitically interrelated. In other words they affect each other in such a way that any change in one of them will cause a proportional change in the others. For instance, if you change the positioning of the bridle so that the kite flies more overhead, depending on the kite design, you may actually decrease the amount of pull (lift) and also the amount of drag, which will decrease stability. It is a compromise among the forces acting on the airfoil. So, if the kite is not designed as a "lifter" it may not handle the load, even if it seems like it pulls enough to do it. Adding a load can change the angle of attack just by being there and significantly reduce the kite's lifting ability. Some kites will handle the load properly, others won't even if it seems like they should. The load you want to lift will determine the size and type of kite that is suited to that purpose. I'm not really into KAP, but I know that an unstable platform will make it more difficult to get the results you want. Also, the load itself may cause enough additional drag by itself so that the kite may not fly as much overhead as when unencumbered. The length of the flying line affects where the kite will position itself, as the more line you pay out, the more weight the kite has to lift, and the line also creates drag which will move the kite out away from vertical.

I'm sure that a few others will chime in with recommendations for what you want to do. 


"'s a fair wind blowin' warm, out of the south over my shoulder, guess I'll set a course and go." CSN&Y
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« Reply #3 on: June 30, 2017, 04:24 PM »

A Fled is an easy build with good flying characteristics for KAP.

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« Reply #4 on: June 30, 2017, 04:36 PM »

You must have heard of Marconi...... His antenna lifters are available in new construction!!

Kites kayaks & corgis again!!!
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