Question on trimming mixer board on esky
11-02-2004, 10:41 AM
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Question on trimming mixer board on esky
Hi all got a question on the trimming of my honeybee2 i have figured out that the gain dial on the mixer board is for the rudder trim and have got the rudder pretty close to center on controller but the other dial which is proportional i made a mental note where the dial was set before turning it and it doesnt seem to change the trim on the forward/aft/roll. On my controller my trim for forward/aft is almost all the way aft to lift off level otherwise the heli would leap forward on lift off. I figured the other dial on the mixer board is for forward/aft/roll but doesnt seem to change anything. Anyone have a tip for tryin to center my forward/aft trim tab on controller i could use some help on this i dont want to crash and burn atleast not yet anyways hehe Thanx all
12-07-2004, 07:19 AM
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RE: Question on trimming mixer board on esky
Check you center of gravity. Do this by turning the paddles to form a cross with the tail boom + then hold the paddle flybars with each hand and lift the helicopter about a inch off the table. Check to see if the skids are level to the table. If they are not adjust the battery either towards to front or rear to balance the helicopter.
12-07-2004, 11:12 AM
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RE: Question on trimming mixer board on esky
Yes, check the CG first. If your heli still wants to go forward even the trim is pulled back, you can adjust the elevation link which is the one in the front with only 1 servo. Remove the link form the ball and turn counter clockwise to lengthen the link which will give more backward. Try only 1 turn at a time.
The 2 terms being used on the all in one controller are similar to GAIN and PROPORTION on the other controller.
The GAIN or LIMIT will set the strength or sensitivity of how much the rudder response to the yaw movement, normally set at 90% and go down from there.
The PROPORTION or DELAY will dictate the amount of signal sending to the rudder control per unit time, again good starting point is 90%.
The DELAY should be set first, you want to set it so that the rudder speed is proportion to the rotor speed. If the heli is on the ground and the throttle is a lowest position, move the heli side to side by hand, if the tail spins you have to decrease the DELAY.
Then fly the heli and adjust the LIMIT, if the tail osscilates then the gain must be reduced the LIMIT but if you reduce it too much the nose will not stay put.
One manual suggests that you set both at 90% then go down from there if needed. On my Esky 3D, the gain stays around 85% (arrow points at 7 o'clock) and the proportion is about 75% (arrow points at 3 o'clock), this is with 1800 mAH lithium pack.
Look down, the rotor turns clockwise so the body would want to counteract by turning to the left (nose to the left that is), now come the rudder to help pulling the nose to the right (pushing the tail to the left that is). So if you need to trim the rudder to the left (nose moves to right when fly), which means the rudder has TOO MUCH power then you must LOWER the proprotion by turning the pot counter clockwise. If the tail oscillates, then the gain must be reduced (as mentioned above).
It is okay to have to adjust the trim on the TX, sometimes it changes with ambient temperature or the efficiency of the motor(s).
The 2 terms being used on the all in one controller are similar to GAIN and PROPORTION on the other controller.
The GAIN or LIMIT will set the strength or sensitivity of how much the rudder response to the yaw movement, normally set at 90% and go down from there.
The PROPORTION or DELAY will dictate the amount of signal sending to the rudder control per unit time, again good starting point is 90%.
The DELAY should be set first, you want to set it so that the rudder speed is proportion to the rotor speed. If the heli is on the ground and the throttle is a lowest position, move the heli side to side by hand, if the tail spins you have to decrease the DELAY.
Then fly the heli and adjust the LIMIT, if the tail osscilates then the gain must be reduced the LIMIT but if you reduce it too much the nose will not stay put.
One manual suggests that you set both at 90% then go down from there if needed. On my Esky 3D, the gain stays around 85% (arrow points at 7 o'clock) and the proportion is about 75% (arrow points at 3 o'clock), this is with 1800 mAH lithium pack.
Look down, the rotor turns clockwise so the body would want to counteract by turning to the left (nose to the left that is), now come the rudder to help pulling the nose to the right (pushing the tail to the left that is). So if you need to trim the rudder to the left (nose moves to right when fly), which means the rudder has TOO MUCH power then you must LOWER the proprotion by turning the pot counter clockwise. If the tail oscillates, then the gain must be reduced (as mentioned above).
It is okay to have to adjust the trim on the TX, sometimes it changes with ambient temperature or the efficiency of the motor(s).
