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Old 08-29-2014, 03:43 AM   #1
SHD3920
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Default Aileron and motor control only???



I have this Sterling Estes rubber powered 30" wingspan kit that I will be building as an electric.
Can this be built with ONLY ailerons, and no tail-feather controls?
The ailerons used for turning, and the motor speed for lifting?
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Old 08-29-2014, 08:41 AM   #2
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I'm sure it would be possible but a much better option IMHO on a plane like that would be rudder and elevator control. Rudder and elevator is what was used on some of the very early RC models. You can get timers for the motor, or use an ESC that allows low voltage cut-off to be up at around 3.5v.
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Old 08-29-2014, 12:26 PM   #3
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Its possible...

You build in a slight up thrust so as power increases it tends to pull the nose up.

You'll also want to have significant "differential" aileron throw to prevent adverse yaw issues.

Normally when doing 2 ch for turn and power you would use rudder instead of aileron because of the adverse yaw potentially making it turn opposed to the direction commanded.
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Old 10-08-2014, 04:28 AM   #4
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What are you going to do when the wind comes up? Power up, climb, get pushed back.

You want elevator control if you are going to fly in any kind of wind.

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Old 10-08-2014, 04:46 AM   #5
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Years ago... there was a guy with a 2 ch rudder-throttle plane that could do quite the aerobatic routine. Loops, snap-rolls. cuban-8's and even brief knife edge.

Its all in how you set the model up.... and pilot skill.
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Old 10-10-2014, 10:08 PM   #6
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Also we think that ailerons turn the plane. That's wrong. If your plane is flying level the ailerons will bank the plane and it will dive. Only the application of elevator picks the nose up and the horizontal vector of that elevator is what actually turns the plane.

Even if you have positive decalage and add power to a plane without an elevator, it is still the positive decalage in the horizontal stabilizer that turns the plane, acting as an elevator.

So--all turns are bank and yank, ailerons or not! The exception is the indoor 3D planes without rudder/aileron coupling which can actually (due to their outlandishly outsized rudders) actually flat turn without even banking.
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