Trimming your Aerobatic Model - RC World

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the following page.Notice that the Preset mix on Prog Mix 1 is inhibited and shows the incorrect master and slave. Both will need to beadjusted. Using the Select Cursor down button will move the cursor to the second page of Prog mix 1 until you come tothis screen.On this screen, you can activate the mix, change the master and slave channels, and add a switch selection to turn themix on or off if desired. Again, I leave all of my mixes on, so I simply set the switch position to null, which means itdisregards switch position and the mix is on constantly. Here is how the screen should look after setting the Rudder tothe master channel, the Elevator as the slave channel, and turning the mix on.With the second page of the mix complete, use the cursor button to return to page one of the Prog Mix 1 function to setthe precise values for the mix. In the case of the Yak, I settled on a 6% mix one direction and an 8% mix in the other.Like before, you’ll want the airplane powered and close-by to confirm that the mix is working correctly. In our case, wewant up elevator mixed with rudder movement in both directions.Rudder/Aileron Mixing – Futaba 9CAPThe procedure for mixing rudder/aileron with the Futaba 9CAP is nearly identical to mixing rudder/elevator describedabove. Knowing that my KE coupling needs are very linear, I again chose to use a simple percentage Prog Mix. I choseProg Mix 2. Start by opening up your preferred Prog Mix, setting the master and slave channels, and activating the mix.One additional step is necessary to ensure both ailerons respond to the mix, and that is to turn the “Link” on. The linkfunction is used to link both aileron servos to the mix. With the link off, the radio will only mix the primary servo plugged
into the aileron channel (channel 1). With the link activated, both aileron servos will be used when mixing aileron as aslave. With that complete, your screen should look like this.Returning to page 1 of Prog Mix 2, set the desired values. Again, with the model powered and close-by, confirm thecorrect direction of control movement. In our case, we want aileron deflection opposite the rudder deflection.ConclusionFrom my May 2007 Fly RC article, “I’ve heard many competition pilots describe the trimming process as a never-endingcircle. Each additional change you make can force modifications to previous changes. I find, however, that most sportaerobatic pilots require only one trip through the steps outlined above to dramatically improve their models precisionaerobatic flying traits. By following the basic order of adjustments outlined above, you will be making the model fly moreprecisely on its own.This means less to think about, allowing you to focus on flying each figure as precisely as possible. Some look down onelectronic mixing. Many others widely accept mixing as reasonable and necessary to achieve the best possible flyingmodel. I find it to be very helpful and from my perspective, any adjustments you can make to help your model fly preciselines, roll axially, and maintain clean knife-edge passes is time well spent.”Setting up your model for precision aerobatics is time well spent. We hope that by combining the information found inthis article with the May 2007 print article you’ll soon be flying more precisely than ever. Till next time, remember,aerobatics make the world go ‘round.
Page 2 and 3: Aileron DifferentialIf you think ba
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Page 8 and 9: Note the master channel is the firs

Trimming your Aerobatic Model - RC World

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