Tandem Question - RCCanada - Canada Radio Controlled Hobby Forum
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Old 12-11-2006, 09:19 PM   #1
I am: Boolean21
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Tandem Question

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This is a question for anyone having a CH47 model, or any twin rotor that is not coaxial.

How do the controls work?

What do the swashplates do with only elevator input?

With aileron input?


I'm sure others would be interested in the answers.
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Old 12-11-2006, 10:29 PM   #2
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I am: Dean Wichmann
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I had the original Hirobo POS and although it was O.K. to hover it was nearly impossible to fly forward flight. And in a wind forget it. Maybe the second generation is better I don't know. Anyway it was done all by mixers. Roll are both swashplates in the same direction. Rudder see the swash plates in opposite directions depending on the direction of the swing ( can't really say yaw...because it pivots around the mid point ). Forward flight sees the both swash plates tilt forward but adds positive pitch to the rear ). Reverse for backwards flight.

That's how I remember it. I think they use electronic mixing now.

Dean Wichmann
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