![]() ![]() a little less area at the tips, and with less wingtip up-turn. The chord lengths are also a little different from root to tip than the Evo. Forward sweep angle was reduced slightly to reduce amount of nose weight, and nose length was increased slightly for the same reason. In the end these changes, in my opinion made the design better in flight too.ģ) Design: In addition to the airfoils, we made some slight changes to overall wing planform. But this was a balance, since we did not want to affect the flight performance and style much. Basically, we took the best characteristics of the Evo airfoils and attempted to merge them, and at the same time thickness was reduced for the Alula-Trek and camber is adjusted lightly as you get closer to the wingtip.Ģ) We finessed the shapes and the thicknesses of the parts to reduce the volume so that we could use a little more dense foam for added durability. Both the Evo designs always required a little trim to get it right. We wanted to achieve trimmed flight with the elevons close to neutral position, at best glide. ![]() "1) New airfoil: It's a secret recipe! ) We took what learned from the Evo series and applied this to the new Trek series. I thought sharing that information made for a good start to this review and so here they are. As I was finishing up this review I received an E-mail from George at Dream-Flight with the design goals and improvements for the Trek from the Evo. ![]() I also found the Alula-Trek easy to assemble. The new nose is longer and the wing is a different shape in several ways including being thinner and with less up-turn at the wing tip. I noticed it was made of a different, denser foam with no molding marks to sand off and greater strength. Some of the changes between the Evo and the Trek were obvious even to me. I still have, fly and enjoy my Alula-Evo so I was delighted when I got a chance to review the new Alula-Trek. I found it a delightful plane and fun as a hand toss at thermal sites and even more fun at the slope in light wind. I had the privilege of reviewing the earlier Alula-Evo here in RC Groups. ![]()
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