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If you get around to testing and do A-B-A runs,with and without the tail,consider adding ballast to the van equal to the weight of the tail when you run without it.
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That's easy. I'll just put it into the back of the van.
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Considering aerodynamics, orange4boy, have you noticed if you get better mileage at high altitudes?
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I have heard of this effect but have not been on a trip high enough to see. I know high altitude is better for aircraft FE. Must be for the same reasons: lower drag from thinner air = higher ground speed per engine revolution. You will read the same airspeed but have higher ground speed. The lean burn is also true if your engine can't compensate. I remember having to re-lean the engine after an altitude change.
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Vortex generators are old tech. My new and improved vortex alternators are unstoppable.
"It’s easy to explain how rockets work but explaining the aerodynamics of a wing takes a rocket scientist.
