Ariel Plan

Yes, the upper spreader is too low but it works.  I'll raise it on the inevitable UL version, with a .080 frame and lighter sail.  The goal was a very fast and durable medium-to-high wind kite, and the result makes up for some of my dead-end projects.  Ariel is a composite of other kites, with traits selected for stability resulting in a low-aspect sail, with long whiskers, making a deep kite.  At launching in light winds, it hesitates slightly due to the heavy frame but once airborne it's stiff and smooth, with the tensioned trailing edge leaving a soft white-noise sound.  A not-unpleasant bit of oversteer allows fast pirouettes but tracking is good.  Steering input is very sensitive, but there is enough feedback to give you a feel for the kite.  Axles are fast, and leading edge launches are a breeze.  Wind range seems to be in the 5-15mph range.  At higher speeds it's hard to see!  The beer can is for scale reference only.  The plan assumes some experience with kite making and the ability to print the sail plan to size.  Nothing in the construction is special, just basic kite construction.  Morten's version.

This kite isn't named for the Arial typeface or a Disney cartoon character, but for the British maker of the Square Four motorcycle. A very fast bike with pathetically weak brakes. 

I intend to make another sing a .098 rod frame, which would be a better kite for average winds. 

Frame Dimensions

Leading edge 1570 Carbon 30 inches 760 mm
Spine 1570 Carbon 18 inches 460 mm
Upper Spreader 1570 Carbon 14.4 inches 368 mm
Lower spreader 1570 Carbon 13 inches 330 mm
Stand-offs .080 Carbon 4 inches 100 mm

Parts and Materials

Leading edge strip and nose 3.9 ounce Polyester 1 5/8 inches wide
Sail 1/2 ounce Nylon
Leech line 50 pound Polyester
Bridle line 75 pound Polyester
Nocks Mini 1570
Leading edge connectors APA Mini, with "doohickey" clips
Standoff to Spreader APA teardrop
Standoff to sail HQ- type clip-on
T-connector Exel plastic

Bridle Dimensions

A prusik knot attaches the  tow loop (red) to the inhaul line (green), and another one ties the inhaul (green) to the purple outhaul (purple).