RE: Shrike Dolly
Here's a dolly a buddy of mine and I built for our Shrike .40's, so we could chase each other around, without needing a third person to launch for us. It worked pretty well, but the uprights that sit in front of the wing leading edge needed to be made taller and sturdier (twice as thick) than shown on these photos. These changes helped a lot. We shot some video of my take-offs off the dolly (yellow and red one), I need to post that on rcuvideos.com some time. It's really a short roll, probably less than 15 feet along the ground, before the Shrike .40 blasts off. You need to be ready to apply some right aileron right away, as the plane will roll to the left somewhat as it lifts off the dolly.