This will be the first in a 3-part series about a nifty electric project I've completed recently. I invite you to also write up your experiences with various kits and products. Collectively, we embody a tremendous resource of diverse experience - let's organize it!
The Carl Goldberg Mirage 550 is described as a ``sport trainer'' electric model. It's a high-wing Cessna-like model for 2-3 channels, with a 54'' wingspan and a target weight approaching 3 lb. If it were designed for glow, it would be roughly comparable to the venerable Eaglet 50 kit that Goldberg has sold for years (for 0.09 to 0.25 2-stroke engines). With a Selig 3021 airfoil (a high-lift design common in sailplanes) and more graceful lines than most trainers, it has more consistent slow-speed performance, lower drag, and better glide.
But to spruce it up for real sport flying, I thought a few modifications were in order. This month, I'll highlight changes made to the structure - namely adding ailerons for a full 4-channel system. In January, we'll explore how to upgrade the rather anemic power system that comes with the Mirage (as with most electric models from Goldberg and Great Planes) for ``glow-like'' performance and duration. And in February, we'll put it all together for a comprehensive review of one of electric RC's most popular and well-thought-of kits.