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DX-7 Elevator setup

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Old 02-02-2007, 12:58 PM
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maineflyer
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Default DX-7 Elevator setup

I am picking up a DX-7 tomorrow and am wondering if I can hook to elevator servos up to 2 different channels so that I can trim/fine tune the servos? I am wondering if I need to pick up a reversing Y if not.
Thanks
Jeff
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Old 02-02-2007, 01:02 PM
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flyinrazrback
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Default RE: DX-7 Elevator setup

This was posted by Mike M. in another thread

On set-up of models with 2 ail and 2 elev servos, I'd like to share the proper and fastest way to do this.

First, the rx connections:

1. right side elevator into ELEV channel
2. Left Side elevator into AUX 2 channel
3. Right Side aileron into AIL channel
4. Left side aileron into FLAP (AUX 1) channel
5. Rudder and Throttle into the normal channels

TX program

1. Go into the Set-up mode (hold down scroll and select keys while turning on tx)
2. scroll to the Input Select screen
3. Set Aux2 to INH, AUX2 TRIM to INH, FLAP to INH, FLAP TRIM to INH
This turns off both of these channels from the levers and switches. This is the proper way to do this, not using P-mixes or Travel adjust.
4. Scroll to Wing Type
5. Activate Flapperon

Elevator Set up
1. Power off tx and turn back on. Go to normal programming mode
2. Scroll to P-mix 6. Set ELEV as master and AUX2 as slave.
3. Scroll to Sub Trim and set the neutral for the right side elevator with ELEV channel and the neutral for the left side elevator with AUX2.
4. Scroll to Travel Adjust. Set the desired travel for the right side elevator with the ELEV adjustment.
5. Scroll back to P-Mix 6 and tweak the travel of the left side elevator to match the right side with the mix values, for each stick direction.

Aileron Set-up
1. Go to normal programming mode
2. Scroll to Sub Trim and set the neutral for the right side aileron with AILE channel and the neutral for the left side aileron with FLAP channel.
3. Scroll to Travel Adjust. Set the desired travel for the right side aileron with the AILE adjustment.
4. Set the travel of the left side aileron to match the right in both stick directions with the FLAP channel in Travel Adjust.

From here forward everything will work as if the elevator and ailerons were off of one channel. i.e. DR, expo, p-mixing for pitch or roll coupling.
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Old 05-09-2010, 09:10 PM
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radpilot
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Default RE: DX-7 Elevator setup

need some help from some experts on the dx-7 , used the 6 chanel jr in the past , any way . here it is ...after seting my planes up for there maiden flight , flying and adjusting trim for level flight and so on . how do ( offsett trim ) or get the radio to store the current trim positions as the new center for the paticular model ? I called horizion and the said dust leave leave the trim in that position when done flying. dont like that because i like to center all my trims to zero prior to flight. any help is greatly appreciated .
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