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Rick,

After 25-30 hours of flying,my Glasair developed aileron flutter symptoms similar to yours.None of the experts could find a remedy.I did everything imaginable to eliminate the flutter.After speaking to a Rocket owner the had the same problem I found the answer.I had built a pressure plenum for better cooling with fiberglass intakes close to the cowling inlets sealed with baffling material.After some hours of flying the motor mounts sagged just enough to allow the motor to slightly come in contact with the cowling.Everything else on the plane felt rock solid but the sticks vibrated and shook like something was going to fall off.It was unnerving to look out and see the aileron shaking.Once I eliminated all the interference at the cowling ALL vibrations were eliminated.The Rocket owner had his exhaust slighly rubbing under a load with the same stick shake.He claimed he fought with it for a year and was scared to fly in the thing until he solved the problem.

These problems that you encounter after the plane is flying seem to be the most frustrating as you are anxious to fly and are beginning to wonder if you will ever get it right and if you built it incorrectly.Once it's flying correctly you will be looking for things to tinker with.

Doug Walberg

PS What did the factory test pilot say about the aileron flutter and why didn't he fix it???My friend had someone do the first flights on his plane and the test pilot spent a week trimming the plane,correcting the misalignments ,and flying a complete test sequence including full flutter program and flying over never exceed,etc.When  my friend flew the plane after it was PERFECT.If interested I 'll let you know who the test pilot is.He's an unlimited aerobatic pilot and he's sorted out planes for Stoddard Hamilton,Aviat,Dept of Interior,Turbine Raven,etc.Very thorough. >>

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