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Kites! Kites! Kites! => Single Line Kites => Topic started by: Fore Check on November 06, 2009, 03:22 AM



Title: New Cellular: Andromeda Px9
Post by: Fore Check on November 06, 2009, 03:22 AM
I posted this over at Kitebuilder and thought I'd share here.   8)

Yeah...

...I built that.   :P

(http://i105.photobucket.com/albums/m225/fore_check/Andromeda%20Px9/First%20Flight%20110309/DSC09724_edited.jpg)

It's a 9 celled Pely kite, with some minor mods.  The cells are 24" tall along the longerons, about 22" deep at the masts (2/3 of a SkyShark tube,) the cells are 45 degree angles, and the wings are 22" wide to match the width of the cells.

It's framed with SS P300 longerons and spreaders, P200 masts.

Here's some pics after spending a few hours in the air on Tuesday afternoon (11/3/09) from the shakedown flight.  It's about 13' wide at the top and 6' tall in the center.

(http://i105.photobucket.com/albums/m225/fore_check/Andromeda%20Px9/First%20Flight%20110309/DSC09807.jpg)

(http://i105.photobucket.com/albums/m225/fore_check/Andromeda%20Px9/First%20Flight%20110309/DSC09805.jpg)

(http://i105.photobucket.com/albums/m225/fore_check/Andromeda%20Px9/First%20Flight%20110309/DSC09803.jpg)

(http://i105.photobucket.com/albums/m225/fore_check/Andromeda%20Px9/First%20Flight%20110309/DSC09804.jpg)

(http://i105.photobucket.com/albums/m225/fore_check/Andromeda%20Px9/First%20Flight%20110309/DSC09810.jpg)

(http://i105.photobucket.com/albums/m225/fore_check/Andromeda%20Px9/First%20Flight%20110309/DSC09809.jpg)

(http://i105.photobucket.com/albums/m225/fore_check/Andromeda%20Px9/First%20Flight%20110309/DSC09808.jpg)

(http://i105.photobucket.com/albums/m225/fore_check/Andromeda%20Px9/First%20Flight%20110309/DSC09813.jpg)

The colors are flourescent blue with Challenge dark blue; Challenge flourescent orange with Challenge orange; and Challenge white with Challenge gray.

All of the panel edges are curved to a 3.5% depth, and it's edged in 3/4 oz black RSN.

This thing was a *lot* of work, but I think it was worth it!   8)

(http://i105.photobucket.com/albums/m225/fore_check/Andromeda%20Px9/First%20Flight%20110309/DSC09708_edited.jpg)

(http://i105.photobucket.com/albums/m225/fore_check/Andromeda%20Px9/First%20Flight%20110309/DSC09714_edited.jpg)

(http://i105.photobucket.com/albums/m225/fore_check/Andromeda%20Px9/First%20Flight%20110309/DSC09737_edited.jpg)

(http://i105.photobucket.com/albums/m225/fore_check/Andromeda%20Px9/First%20Flight%20110309/DSC09743_edited.jpg)

(http://i105.photobucket.com/albums/m225/fore_check/Andromeda%20Px9/First%20Flight%20110309/DSC09672_edited.jpg)



Title: Re: New Cellular: Andromeda Px9
Post by: fidelio on November 06, 2009, 04:06 AM
hey that's crazy cool. awesome job man. 8) i really dig your color choices.

with her being 13' wide, how does she travel?
and just purely out of curiosity, how much did the bundle of sticks weigh?

sweet kite you've made there.


Title: Re: New Cellular: Andromeda Px9
Post by: Fore Check on November 06, 2009, 04:53 AM
Thanks! 

As far as breakdown, the masts are in 2 pieces ferruled at the T's in the middle of each cell.  After de-tensioning the sails at the wing tips, they get removed from the ferrule and remain attached to the kite at the bridge between the points.  The spreaders get removed and the longerons remain.  For storage or travel (I haven't done this yet, those pics were after initial framing, rigging, and from the first flight) it will roll up into a tube centered around the longerons, about 6' long.  I suppose I could remove the center-most 2 longerons and break them down for a shorter tube, but I don't think this is necessary (for me, personally) - I have no problem with a tube that long or a bit longer (I've got a few  ;) )

As far as weight of the spars:  It has 21 SkyShark P300 tubes cut up in various lengths (not all continuous, but it uses that many) and 6 SkyShark P200 tubes (again, not all continuous)

According to the published or catalog weights of those tubes, the frame would weigh 444 grams or 15.7 oz (nearly 1 lb) - but that doesn't include the ferrules and fittings.

It has quite a bit of sail area and it feels very light for its size in hand.  It seems to float at times.  Doesn't requre much wind at all.   :-\


Title: Re: New Cellular: Andromeda Px9
Post by: Hal on November 06, 2009, 07:24 AM
Very well done!  That's a lot of sewing.


Title: Re: New Cellular: Andromeda Px9
Post by: jazznap on November 06, 2009, 07:56 AM
Wow!  That's amazing.  What a beautiful kite.  I can't imagine the time and skill that went into building it.  Have fun flying it!


Title: Re: New Cellular: Andromeda Px9
Post by: DWayne on November 06, 2009, 08:05 AM
That's a lot of edge binding. 
But what a great looking build.

Denny


Title: Re: New Cellular: Andromeda Px9
Post by: Fore Check on November 06, 2009, 08:13 AM
Thanks!  The edge binding was no big deal, really.  Biggest pain was hot cutting all of the strips; I used 3/4" wide strips of 0.75 oz Ripstop single-folded (3/8" finished width)

I have a couple of videos too -   :)

They're from a couple from differing vantage points.  The first is on a short tether and the kite was being affected by ground buffets to a degree; The second I let out about another 100' of line and put it in some smoother air.  Weather page said 12 mph, I think it was closer to 10.

 (http://s105.photobucket.com/albums/m225/fore_check/Andromeda%20Px9/First%20Flight%20110309/?action=view&current=MOV09751.flv)

 (http://s105.photobucket.com/albums/m225/fore_check/Andromeda%20Px9/First%20Flight%20110309/?action=view&current=MOV09777.flv)


Title: Re: New Cellular: Andromeda Px9
Post by: Blownfuse on November 06, 2009, 10:32 AM
Very pretty. Very, very pretty.

Must have taken forever to make. Simply stunning.


Title: Re: New Cellular: Andromeda Px9
Post by: normofthenorth on November 06, 2009, 07:22 PM
"All of the panel edges are curved to a 3.5% depth"?

Does that mean that you subtly scalloped all the panels (A smooth, maybe round curve, and the maximum scallop depth is 3.5% the length of the edge?) so that the tension along the edges would make everything lie flat, rather than creating little tension pleats along the edges?

If so, "wow" and "yikes"!! If not, please explain!


Title: Re: New Cellular: Andromeda Px9
Post by: Fore Check on November 07, 2009, 03:14 AM
"All of the panel edges are curved to a 3.5% depth"?

Does that mean that you subtly scalloped all the panels (A smooth, maybe round curve, and the maximum scallop depth is 3.5% the length of the edge?) so that the tension along the edges would make everything lie flat, rather than creating little tension pleats along the edges?

If so, "wow" and "yikes"!! If not, please explain!

Yes, that's exactly right.   ;)

If you look at the pictures above of the kite on the ground, a few of the perspective shots really show that the black bound edges are all curved.

What I do is draw and print my templates in AutoCAD.  This makes it very easy to draw the arc at whatever depth you want.  I first draw the panel with straight edges, then I use the offset function to copy the edge lines inward to whatever depth I calculate (3.5% of the span of the edge in the case of this kite) and then drawn an arc whose center is the midpoint of the offset line and endpoints are the original sail corners.  AutoCad makes it a smooth curve going through those three points like snap-bang-done.

I then print out my templates on our large format printer, tape them to Matte board (like picture framing matte that I get from Hobby Lobby when it's on sale) and cut the templates out with an x-acto or excel hobby knife. 

Thanks for the comments!   ;D



Title: Re: New Cellular: Andromeda Px9
Post by: normofthenorth on November 07, 2009, 10:56 AM
Wow!


Title: Re: New Cellular: Andromeda Px9
Post by: Fore Check on November 07, 2009, 11:17 AM
These pics are from a previous build (a different kite) but it shows what I was describing above regarding the templates.

After drawing in AutoCAD and printing, it is applied to Matte Board and then cut out with a hobby knife.  I've already started in this pic:

(http://i105.photobucket.com/albums/m225/fore_check/L%20Aero%20Photo/DSC03526.jpg)

The curves are cut in a couple of passes with a slow, steady hand:

(http://i105.photobucket.com/albums/m225/fore_check/L%20Aero%20Photo/DSC03527.jpg)

Cutting finished before removal of the scraps:

(http://i105.photobucket.com/albums/m225/fore_check/L%20Aero%20Photo/DSC03528.jpg)

Finished Template:

(http://i105.photobucket.com/albums/m225/fore_check/L%20Aero%20Photo/DSC03529.jpg)

The template is used to trace the pattern on to the fabric and then the fabric is cut by hand with a hobby knife (only I use a finer, #11 blade and handle for cutting the fabric)  The steel straight edge is used for the straight lines and the curves are cut freehand.

That template was used to make the black and white center panel on this kite:

(http://i105.photobucket.com/albums/m225/fore_check/L%20Aero%20Photo/LCVDJHL%202nd%20flight%20031909/DSC06473.jpg)


Title: Re: New Cellular: Andromeda Px9
Post by: Blownfuse on November 07, 2009, 01:53 PM
Quote
That template was used to make the black and white center panel on this kite:

Which is also gorgeous ! You donīt happen to sell some of your work off, now and then, to make room for your amazing new builds, do you ?
 ;)


Title: Re: New Cellular: Andromeda Px9
Post by: Fore Check on November 07, 2009, 01:57 PM
Quote
That template was used to make the black and white center panel on this kite:

Which is also gorgeous ! You donīt happen to sell some of your work off, now and then, to make room for your amazing new builds, do you ?
 ;)

A flattering question...   :)

But alas, can a fella have too many kites? ;) Selling them would be like selling your children. ???  Too much love gone in to making them.   :D :D


Title: Re: New Cellular: Andromeda Px9
Post by: Adicakes on November 07, 2009, 05:17 PM
I don't own any SLKs but I do appreciate great work and what you've shown us here is 100% awesome.  Excellent job, you're obviously a clever chap. :)


Title: Re: New Cellular: Andromeda Px9
Post by: Ace on November 08, 2009, 06:52 PM
I can't imagine how many nights you stayed up thinking how to build that thing let alone building it. What an effort :)
As good as it gets 8)
Love the name too ;)


Title: Re: New Cellular: Andromeda Px9
Post by: reddobie on November 08, 2009, 07:15 PM
Looks great .  I love it.


Title: Re: New Cellular: Andromeda Px9
Post by: Fore Check on November 09, 2009, 02:26 AM
I can't imagine how many nights you stayed up thinking how to build that thing let alone building it. What an effort :)


Actually, the "how" is a big chunk of the fun part for me.  A wise and talented kite builder once told me that it's a blend of art and engineering.  Frankly, I'm far better at the engineering half of the equation than the artistic (I'm an engineer by degree/trade/occupation)

Believe it or not, this one is fairly straightforward from a nuts/bolts/bones standpoint.  It was just a lot of details.

As good as it gets 8)
Love the name too ;)


Thanks.   8)  This is the first kite I've made and actually named without soliciting input from others or naming it something obvious (like "Big red box kite"  :P )


I took another video yesterday evening before taking it down; I had it in the air for about 7 hours.  This was shot as the sun was setting there at the last.  Just a nice, relaxing afternoon of flying.

http://s105.photobucket.com/albums/m225/fore_check/Andromeda%20Px9/Second%20Flight%20110809/?action=view&current=MOV09683.flv (http://s105.photobucket.com/albums/m225/fore_check/Andromeda%20Px9/Second%20Flight%20110809/?action=view&current=MOV09683.flv)


Title: Re: New Cellular: Andromeda Px9
Post by: kiten00b on November 09, 2009, 10:23 AM
congratulations, that's a very striking design!


Title: Re: New Cellular: Andromeda Px9
Post by: ainokea on November 14, 2009, 09:00 AM
Very cool, very cool. Good job and nice work.  ;D


Title: Re: New Cellular: Andromeda Px9
Post by: Tonka on November 14, 2009, 11:29 AM
Incredible!!! the amount of talent and patience that people have always stuns me......love it!


Title: Re: New Cellular: Andromeda Px9
Post by: Fore Check on November 14, 2009, 12:36 PM
Thanks!  The best thing about this kite:  I get to fly it!   :D

Matter of fact, it's up in the air out front of my house right now.   :P

Here's some pics taken today:

(http://i105.photobucket.com/albums/m225/fore_check/Andromeda%20Px9/111409/DSC09783.jpg)

(http://i105.photobucket.com/albums/m225/fore_check/Andromeda%20Px9/111409/DSC09741.jpg)

(http://i105.photobucket.com/albums/m225/fore_check/Andromeda%20Px9/111409/DSC09702.jpg)


Title: Re: New Cellular: Andromeda Px9
Post by: fidelio on November 14, 2009, 04:49 PM
the way the light plays with the kite in the middle photo it looks a bit like stained glass. gorgeous kite.


Title: Re: New Cellular: Andromeda Px9
Post by: Fore Check on November 14, 2009, 04:55 PM
the way the light plays with the kite in the middle photo it looks a bit like stained glass. gorgeous kite.


I got another one with the light and shadows looking pretty sharp today  8)

(http://i105.photobucket.com/albums/m225/fore_check/Andromeda%20Px9/111409/DSC09940.jpg)


Title: Re: New Cellular: Andromeda Px9
Post by: xuzme720 on November 14, 2009, 06:22 PM
Fantastic! She doesn't have a bad side, that's for sure. Absolutely gorgeous!  ;D ;D


Title: Re: New Cellular: Andromeda Px9
Post by: Lex B on November 15, 2009, 07:45 AM
Love this Px9.
Pely's and other celular kites were always my big fafourites in my SLK days.  :(
The characteristics felt during your first flight seem to be baked in in this kind of kites.
whatever way you position the cells, they never pull too hard, but don't need an excessive amount of wind.
they can even be flown backwards or upside down, same characteristics. :D

I even used to make them out of [kite]paper and thin wooden rods; Those were the days  hmmmmm !!