airlerons
08-08-2008 | 04:31 PM
#2
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From: spiro,
OK
RE: airlerons
standing behind the plane as if it were going away from you if you mave your stick to the right the right airleron should go up and the left down, move the stick to the left and the left airleron goes up and the right down..
08-08-2008 | 07:31 PM
#4
RE: airlerons
http://gettingairborne.com/grafix/Demo1.wmv
Also most good kits and ARF's from reputable manufacturers will document all of this well in their trainer type airplane instructions.
Also most good kits and ARF's from reputable manufacturers will document all of this well in their trainer type airplane instructions.
08-08-2008 | 07:45 PM
#5
My Feedback: (1)
RE: airlerons
I don't know about that. Setting up Ailerons for basic flying is 'basic'. As millertym2000 stated, standing behind, right goes up when using right aileron control. Simple.
When setting it up, start by setting the ailerons at neutral. I do this by using a couple of small clamps and a couple 2" by 5" lengths of of 1/8 ply. I clamp he ply to the wing at the wing root so that they hold the ailerons straight behind the wings. Sandwich the ailerons between the ply then clamp them in place. This will pretty much center them to the wing. If you have flat bottom wing, this is even easier. Use a thicker or stiffer piece of ply on the bottom so that the aileron is perfectly aligned with the bottom of the wing.
If this is a basic trainer with one servo in the center, well, at this point, the torque rods will be set no matter how you glued them in place. Center the aileron servo by applying power to it using the receiver and with the servo to the proper servo channel. Make sure that all your trims are centered. Install the servo arm. Note that if you have one of the standard four arm servo arms..
you can rotate the servo arm until one of the arms is perfectly perpendicular to the servo body. This is the one to use. Screw the servo arm on to the servo using the servo screws provide. Be careful not to rotate the servo arm while doing this. If you do, simply apply servo power and center it again like you did before.
Ok. You're ready to set the servo linkage.
Install he servo into the servo mount being careful not to rotate the servo arm. Secure it in place. Attach the servo linkage to the servo arms on the torque rod using the supplied clevis's. Screw the linkage about half way into the clevis to give you plenty of adjustment range.
Carefully push the linkage rods down to the servo arms. Mark the likage, using a "sharpy" or some thin permanant marker where the linkage passes over the outter most hole on the servo arm. This is the bend point.
Remove the linkage, then bend the linkage so that the mark you made is right smack in the center of the bend. Do this for both sides.
Install the linkage on both sides then adjust the clevis so that both sides do not apply any torque to the ailerons when secured to the servo arms.
This will give you a good beginning so that you have a minimum of trim when flying.
Now, once you are ready, and are ready to maiden the plane, make sure that when you turn the TX and RX on, the ailerons don't move from where you set them. If all is ok, and the ailerons bottoms are very much even with the bottom of the wing, AND when standing behind the aircraft, right aileron moves the right aileron UP.... you are ready to fly.
Fly the plane noting how much trim you need to give you straight and level flight at a throttle setting (say half throttle). Land the plane. See how much you needed to trim to give you straight and level flight. If it is minimal, then leave it alone. If it is rather excessive, say most of your TX trim, then adjust the linkage to remove that excessive so that when the TX trim is centered, you only need a click or two of adjustment for straight and level flight.
Think about it. It's fairly simple once you get the idea that the bottom of the ailerons, for a trainer, should line up perfectly, or as perfectly as possible, with the bottom of the wing. Putting a straight edge across the bottom of the wing, across the bottom of the aileron, there should be no difference... they should line up perfectly. And remember, this is for the initial setup. Once you fly the maiden and add trim for actual flying conditions, this may or may not apply.. but the initial setting will insure that everything, aileron wise, is straight and ready for flight.
Good luck.
CGr.
When setting it up, start by setting the ailerons at neutral. I do this by using a couple of small clamps and a couple 2" by 5" lengths of of 1/8 ply. I clamp he ply to the wing at the wing root so that they hold the ailerons straight behind the wings. Sandwich the ailerons between the ply then clamp them in place. This will pretty much center them to the wing. If you have flat bottom wing, this is even easier. Use a thicker or stiffer piece of ply on the bottom so that the aileron is perfectly aligned with the bottom of the wing.
If this is a basic trainer with one servo in the center, well, at this point, the torque rods will be set no matter how you glued them in place. Center the aileron servo by applying power to it using the receiver and with the servo to the proper servo channel. Make sure that all your trims are centered. Install the servo arm. Note that if you have one of the standard four arm servo arms..
you can rotate the servo arm until one of the arms is perfectly perpendicular to the servo body. This is the one to use. Screw the servo arm on to the servo using the servo screws provide. Be careful not to rotate the servo arm while doing this. If you do, simply apply servo power and center it again like you did before.Ok. You're ready to set the servo linkage.
Install he servo into the servo mount being careful not to rotate the servo arm. Secure it in place. Attach the servo linkage to the servo arms on the torque rod using the supplied clevis's. Screw the linkage about half way into the clevis to give you plenty of adjustment range.
Carefully push the linkage rods down to the servo arms. Mark the likage, using a "sharpy" or some thin permanant marker where the linkage passes over the outter most hole on the servo arm. This is the bend point.
Remove the linkage, then bend the linkage so that the mark you made is right smack in the center of the bend. Do this for both sides.
Install the linkage on both sides then adjust the clevis so that both sides do not apply any torque to the ailerons when secured to the servo arms.
This will give you a good beginning so that you have a minimum of trim when flying.
Now, once you are ready, and are ready to maiden the plane, make sure that when you turn the TX and RX on, the ailerons don't move from where you set them. If all is ok, and the ailerons bottoms are very much even with the bottom of the wing, AND when standing behind the aircraft, right aileron moves the right aileron UP.... you are ready to fly.
Fly the plane noting how much trim you need to give you straight and level flight at a throttle setting (say half throttle). Land the plane. See how much you needed to trim to give you straight and level flight. If it is minimal, then leave it alone. If it is rather excessive, say most of your TX trim, then adjust the linkage to remove that excessive so that when the TX trim is centered, you only need a click or two of adjustment for straight and level flight.
Think about it. It's fairly simple once you get the idea that the bottom of the ailerons, for a trainer, should line up perfectly, or as perfectly as possible, with the bottom of the wing. Putting a straight edge across the bottom of the wing, across the bottom of the aileron, there should be no difference... they should line up perfectly. And remember, this is for the initial setup. Once you fly the maiden and add trim for actual flying conditions, this may or may not apply.. but the initial setting will insure that everything, aileron wise, is straight and ready for flight.
Good luck.
CGr.
