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Old 01-28-2019, 06:41 PM   #780 (permalink)
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EDIT: looking for an answer, did not find one.
Alrighty then, let's speculate.

No drivetrain in a clay model. Not modeling the inflow and outflow of the [gas or electric] cooling will alter the external results.

The air curtain on the tail is shown to work. It is a Coanda nozzle. The retractable spoiler is small enough that I'd call it a Gurney flap.
A calm and modest life brings more happiness than the pursuit of success combined with constant restlessness
Albert Einstein 1922
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