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As far as I know, gyro systems are not recommended for beginner planes for this reason. |
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If you want wing leveling then buy a Eagletree Guardian and set it to run in 2D mode. The Guardian has 3 Axis gyros and accelerometers that help the wing leveling.
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Latest blog entry: Eagletree Guardian vs. Eagletree Vector
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Not disagreeing with this as I think it is how most people would understand gyro action but to be really pedantic:
Gyros respond to ANY disturbance - whether from external forces or commanded by you. So if you send a roll command to the plane by deflecting the aileron stick, the gyro doesn't know this. What it does know is that the plane starts to roll and it will issue a countermanding instruction to the servos. This is what is called the "fighting the gyro" effect I believe. Clever software can overcome this but simple rate gyros will always exhibit this phenomenon. Quote:
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My first gryo was on the ailerons of a Midwest Aerostar .40 trainer back in the early 1990s. It was a mechanical single rate gyro. It held in the wind like a rock. One thing I've not tried is a 3ch with gyro. Dont' know the results or potential of that. |
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But as far as I know, this can even have certain bad effects at times: for example, if a plane is stalling, instead of letting the plane drop the nose to get out of the stall, "letting go of the sticks" on accelerometers will often keep the plane level and stalled. But then again, sometimes one wants to keep a plane level and stalled: that is roughly what the 3D "elevator" move is. |
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Last edited by flying-llama; Sep 23, 2012 at 12:33 PM.
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the Rate gain mode of the gyro will fight quick unwanted movements.
30% gain is enough to notice improvements. quick gusts affect a dihedral plane and makes it want to roll over. If you have ailerons on a gyro, then it will counteract that and make landing in a crosswind easier. One point I was making the other day in a personal conversation is that the gyro will NOT negate all effects of the wind. It has the highest effect on dampening gusts or wind velocity changes. 10mph headwind or 10mph crosswind if it's absolutely steady (it never really is) would not have as much of difference with or without a gyro. But we all know wind speed changes is the real factor in sudden plane movements. Much of windspeed changes are when you are closer to the ground and you fly over or near ground contours or objects |
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I turned them all off the second flight and the plane needed lots of corrections on take off so my instructor told me to turn the rudder gyro back on, so I set it back to 100% He wanted to see how much difference it wound make in a 10MPH cross wind it tracked right down the yellow line. My instructor doesn't know much about gyros. Will most planes fly ok with these gyros set at 100% ? Thank you, DJ - Kamikaze Ace Wears no helmet! |
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Bill |
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Latest blog entry: Eagletree Guardian vs. Eagletree Vector
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BTW: I'm thru with the 'pattern' flying and the 'take off' part. (My take offs were sooo 'scale' Except the one were the front wheel came loose and I lifted just as it hooked right and hit the fence post at full speed. Plane exploded straight up and came down in 9 pieces. Landing training starts this week. Thanks for the drawing. DJ |
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I played with rate gyros on pitch and roll of an Aerocat (pusher prop flat jet) with full 100%. The wings flapped like a bird and the pitch was hilarious. Bill |
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Latest blog entry: Eagletree Guardian vs. Eagletree Vector
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Well I only put these gyros on the plane to keep it stable. Guess I just need to learn how to fly it without gyros for now. I do have other planes I could put 'em on. Also with the elevator gyro only I can have better landings. Just need to watch over the ailerons.
Russ |
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So what did you do to correct the problem? Russ |
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To correct flapping the wings and pitching i dialed the two gyros back to 30%. |
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Latest blog entry: Eagletree Guardian vs. Eagletree Vector
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