Launching Dolly - Page 2 - RCCanada - Canada Radio Controlled Hobby Forum
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Sailplanes / Electro-gliders Discuss quiet flight in Canada.

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Old 01-17-2008, 08:46 AM   #11
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It's easy to sit and theorize or criticize but I can see the need for myself at some point. The dolly off which the big ASW took off had the front wheels well out front of the C og G. I would worry about it tripping. I had to overcome this launching speed control line models.

The front wheels out forward allow pressure on the dolly till desirable speed is atainaed without it tripping before it gets to flying speed.

I'll look forward to some details on how to apply it to a regular 2m electric.

I'm thinking a compact trebuchet launching on an upward trajectory the same angle as the rails mounted to a table top on which the model would float. The motor could be engaged after it's airbourne. While it conjours images of the wings being left behind while the fuse get thrown into the next county I think the velocity could be managed.

Just a take off of the rubber band launched chuck glider principle.
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Old 01-23-2008, 08:18 AM   #12

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having luanched many times myself from the rear of a pickup truck ,i can tell you that there IS a multitude of differant things that can happen during the wind up speed process before the entire wing is flying

i myself would never luanch from a dolly in comparison to a hard hand luanch HOWEVER luanching from a dolly is very nice and convient and if it can also keeps your brain out of the sun to focus more on soaring ,,then its a must!! good job/nice approach not to mention a great intro for aerotowing

p.s. gliders HAVE been know to tow gliders for those that havent grasped the possiabilitys of electrics theses days
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Old 04-06-2008, 06:22 PM   #13
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IT Worked!

Originally Posted by Mike Sebastien
It won't work. The thrust from the engine isn't enough to overcome the drag from the wheels and cradle to get enough speed to launch. Your asking for more problems. Give it a good hand launch and all will be well.

Just to prove you wrong Mike- here is the proof:

Must admit I had to do one change- change from a 3 to a 4 Wheeler, in order to get straight tracking.

So now I can have both hands on the transmitter during launch- nice for "Old Fart" like me with slow reaction time!!
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