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Russ |
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United States, KY, Madisonville
Joined Mar 2011
433 Posts
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I bought a Skyfun jet last year:
http://www.hobbyking.com/hobbyking/s...dProduct=14517 Flew twice and crashed as many times. Put it up for later. Put a 3 axis gyro on it........I'm flying! |
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Switzerland
Joined Aug 2012
173 Posts
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![]() Mick |
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![]() BTW I'd still like to kinow why I"m having so much wobble problems with my setup. I've got the exact same thing that Melnic uses. But the ailerons shake like it can't make up its mind which way it wants to go.Russ |
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United States, KY, Madisonville
Joined Mar 2011
433 Posts
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I 0'd all my trims and set all the control surfaces to centered. So I'm mechanically set to 0. Now on my elevator I did the same as above only with the elevator wiriing. I plugged the gain into channel 6. But I don't know how to control channel 6 ... yet. From what I'm reading in the Futaba manual I have to choose a control switch in order to operate channel 6 so I'm still learning.Russ |
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From what I'm understanding the knob in the center of the TX is for controlling channel 6. Russ |
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Knowing what dial/switch is controlling the gain on your gyro is very important.
Russ, that's why earlier I suggested you hook up a servo to the channel (6) where the gyro gain wire was, so you could visualize what the gain setting is. Do this: Hook up a spare servo to ch6, verify that turning the knob on that center dial actually moves the servo. Once you are able to do that, plug the elevator gyro back up to the Rx, power everything up. Move the dial so that the GY48V light is ON. (lit) Now SLOWLY move it so that the GY48V light goes OFF (not lit). Now that you found the transition, turn the dial an additional 30 degrees of rotation in the same direction that brought it OFF. GYRO LED should still be off. Lift tail of airplane and as you are lifting tail, the elevator must be going up. LEAVE DIAL ALONE FOR NOW DO NOT TAKE PLANE OFF IF EITHER GYRO LED IS ON. This will assue it's in rate mode. If the airplane tail wags up/downwhen you fly faster, slow down, rotate dial closer to the center point. BTW, If your ailerons shake in flight, it's cause the gain is too high. |
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Thanks Mel. I really appreciate the time you're putting into me.
BTW I've come to realize there is one huge descrepancy here. I can 't see my gyros as they're inside the fuselage on top of the wing center. I can't put 'em in the battery compartment cause there's no room for 'em. I've thought about putting them in the cockpit but the canopy is glued in place. Only other alternative is to mount them under the wings and just punch holes in the side of the fuse. Probably should put 'em on a different plane until the 3 axis comes in. Probably better suited for a profile foamy anyway. ![]() Russ |
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I'm using an Eagle A3 for basic gyro turbulence dampening on 3 axis, for FPV. It really helps, and the plane handles the bumps wonderfully.
However, I notice that it has taken out some of my Twinstar's inherent positive stability, and made it more neutrally stable. For example, it resists turbulence trying to lift a wing, but once it does manage to find itself in a bank, it also resists the dihedral effect of trying to level the wings. So the net effect is that instead of having the wings rocking back and forth in turbulence, it smoothly rolls off one way or the other if I stop working the ailerons to keep wings level. Has anyone else noticed this? I guess I need the Guardian. |
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