As an alternative to today's expensive and hard-to-get molded competition gliders, Stealth Plane Works offers CNC foam-cored, vacuum bagged, composite Supra wings and tail feathers at a price that is less than half of a molded, imported plane of equivalent strength and performance.

The Supra is one of the most popular modern Thermal Duration and F3J planes today. The planform and airfoils of the Supra were designed by Dr. Mark Drela of MIT and have been placed in the public domain.

A particularly pleasing attribute of Dr. Drela's airfoils is that they offer great performance without sacrificing forgiving and novice-friendly flight characteristics.

My wings come with a tube spar/wing joiner, wiring channel, all control surfaces cut and finished with Kevlar  living hinges, leading edge finished, joiner ribs sanded to the dihedral angle, joiner rods and control horns. To finish a wing you need to  drill mounting holes matching your fuselage, install the wiring harness, install servos, control horns and alignment pins and you are done. Fins and stabs also come with control surfaces cut and finished with living Kevlar hinges. By default, the top of the wings and the stab, and both sides of the fin are painted with white KlassKote epoxy paint.

I will build the wings, both 134" and 2 meter with  a 5 degree dihedral in the center panel and 5 degree joiners.

The weights of the finished panels are approximately:
Center: 19.8 oz/563 g
Tips: 5.9 oz/170 g
Stab: 1.2 oz/36 g
Fin: 1.2 oz/35 g

For a total weight of: 34 oz/974 g

The following are pictures of the 134" wings and tail feathers (optional flat center sections):

The 2M Supra wing and tail feathers use the same airfoils as the 134" Supra, and are constructed using the same methods.

The stock wings are built strong and can handle any launch you can throw at them. They come in at 2.8 oz for each tip, 10.3 oz for the center panel, 0.9 oz for the stab and 0.6 oz for the fin, a total weight of 17.4 oz. A completed plane will weigh in the low to mid 20's and have a wing loading between 6 and 8 oz/sq foot.

The following are pictures of the 2M wing and tail feathers:

And here is a picture of the wing and tail feathers laid out on an Art Hobby fuselage. It looks like the tail moment will be a tad short. I'll find out when I get it in the air.

As you can see from the pictures, the 2M Supra has a lower aspect ratio than the 134" Supra. This keeps the Reynolds numbers high for a 2M plane.

Fuselage pods that fit my wings are available from Michael Lachowski. For the Mike Lachowske pod you will need a tail boom. Another option is to use an AVA fuselage, or some other fuselage with a top saddle fitting an 9.75" chord. Troy Lawicki sells pods and booms suitable for the Supra.

Mike Lachowsky 134" Supra fuse pod:

A complete, 134" Supra using the Mike Lachowski fuselage will weigh in the  neighborhood of 63 oz, depending on your choice of servos, batteries and CG position.

If you want a Supra, but want a molded version, contact Kennedy Composites.