A look at one of my designs, and the plan to build one.
I designed the Firefly Fighter over 20 years ago. This is a western style fighter kite, small and quick. I wanted a swallowtail kite with a different look to it. Something that was the inverse of an Indian Fighter with its distinctive triangular tail. Of course most western designs are variations on the classic diamond kite shape, and while swallowtail kites aren’t uncommon, I liked the result. The battens support the swallowtail points, and that helps the sail to remain tight. The trailing edge has a gentle curve. I didn’t want too many straight lines, but it can be built with straight trailing edges too, and that doesn’t affect the performance of the kite much. I usually make this kite out of Mylar to keep it light. It wasn’t designed to carry cutting line, though it probably can. It flies very well in a wind range of 4 to 12 mph. Over the years I’ve built the Firefly using Orcon (as in the photo above), mylar, paper or cellophane wrap that florists use. The plan can be scaled up slightly, but will require a stiffer bow and battens. All the details are on the plan. Just click the link below to learn how to build a Firefly.
The plan for the Firefly can be found here:
http://www.fighterkitecentral.com/plans/Firefly-Tom%20Humphrey.pdf
The Firefly is a joy to fly in a calm breeze. For fighter kite enthusiasts out there, I hope you will build one and enjoy it as much as I have! To see me flying this kite, see below:
There WAS a very light wind that day!
I hope you have fun building and flying your Firefly Fighter!
Lines and My Life 
The link to the FireFly plans are not working (for me), but I was able to find a different site: https://www.kiteplans.org/planos/fighterkitecentralpl/Firefly-Tom%20Humphrey.pdf
Wondering if you have ever come across a template for this kite with more extensive dimensioning?
I designed the Firefly. The plan from Fighter Kite Central is the same, but I’m unclear about what “dimensioning” you require. Creating the template to the stated dimensions should work fine. The kite does not actually require the trailing edge curve, though the curve can easily be made with a standard curved metal ruler. The shoulder point can be found by putting a bow into a bow setter and adjusting the curve to fit from the bow/spine cross point to the wingtip. You may find that a good kite doesn’t have to be exact – most fighters will fly if built “close” to plan even if your measurements aren’t perfect. I hope you give the Firefly a try. I have always enjoyed flying it!