Charlie says it doesn't dead-launch easily, but he seems to like how it tricks on slack lines.

Materials
Icarex polyester fabric is probably the best fabric for this kite as stretchy  would make adjustments a never-ending task. 3.9-ounce Dacron reinforcements are sewn at stress points along the leading edge inside the spar tunnels. The leading edge spars are wrapped, tapered carbon with remaining spars standard carbon tubes and rod. A short section of plain carbon spar is glued into the small ends of the LE spars to accommodate the small nocks. The only non-standard fitting is the nose assembly fashioned from a modified, dual line sport kite center T-fitting. 

Building notes
The example in the photos shows the excellent work of Pam Kirk and Mike Dennis of Heads Up Kites. Hems and seams are quite narrow at around 0.25 inch (6 mm). The original kites were made with single and double-row straight stitching, simple lap seams and single-folded hems. Zigzags should suffice for the homebuilder with a standard machine. Since the original plans are in inches, I'll keep them that way for simplicity, and seam and hem allowances are shown where needed. Edges marked “cut line” have no allowances, and dotted lines represent stitches.

Rear of nose

The nose fitting drilled to accept a .125” carbon rod. This holds a ferrule bent to the angle of the leading edge spars. Velcro serves to fasten the Dacron flaps that allow easier disassembly. Icarex PC covers the white flaps in the photo

Rear of leading edge

A standard APA sport kite leading edge fitting and c-clip hold the .180” pultruded carbon vertical spar.  The Dacron-reinforced oval hole allows disassembly by sliding spar from nose fitting. The vertical spars all arch away from the sail, leaving it flat.

Rear of leading edge

This is one of the upper bridle points that are through a slot to allow movement of the SkyShark 3PT leading edge spar.

Rear of wingtip

Tiny folded strips of Dacron form loops to tie tensioning lines for LE and leech lines. 75 pound Braided Dacron line is used for all tension lines.

The FSD nocks have a side notch to tie to. The leech line goes through the nock, back to the wingtip loop and back to the nock to be tensioned and tied.

Looking down the center front

The .180” carbon keel spar is shown as it supports the keel. At its lower end a .098 carbon rod is spliced to form the curve of the lower keel.

Center of trailing edge

The intersection of the keel and trailing edge is shown here. The black circular reinforcements are of pressure sensitive ¾ ounce rip-stop tape applied prior to stitching.

The lower end of wing vertical spar

Here again the leech lines run through the nock, and lower trick line and bridles lines attach to the wing spar nocks.

The lower tip of the keel

This is the connector at the keel tip where the rear spar joins it at about 60 degrees.

The rear spar on the bottom has a sleeve to stop it against the fitting,  The fitting is actually a T-fitting for drip irrigation tubing with two barbs removed. This could be accomplished with .098 leading edge fittings such as those used on the Prism Micron.

The lanyard to the fitting tensions the fabric.

The bridle tow points can be made with adjustable knots for lateral adjustment if desired.

Leading edge spars    (2)   SkyShark 3PT 38.5" long
Wing vertical spar        (2)  .180 carbon tubing 25.9 long 
Upper keel spar           (1)  .180 carbon tubing 17" long 
Lower keel rod             (1)  .098 carbon rod 17" exposed below upper keel spar
Rear center rod            (1)  .125 solid carbon rod 31.25" long 

The template drawings are downloadable in a zipped file that includes full-scale CDR, AI and DXF drawing files.

Download the JPG file

Download this assembly file