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Old 11-08-2015, 09:18 AM   #1 (permalink)
Grumpy_Old_Man
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Join Date: Nov 2013
Location: Aberdeen, UK
Default Spektrum mix to invert gyro gain for rescue activation

So in my normal flight modes I have three different headspeeds with three different tail gain values, each optimised for the specific headspeed;

e.g.:
FM1 = 1800RMP & 60% gain
FM2 = 2000RPM & 55% gain
FM3 = 2200RPM & 50% gain


When I activate rescue I need negative values. I'd like these negative gain values to be exact 'mirror imaged' to achieve this:
FM1 = 1800RMP & -60% gain
FM2 = 2000RPM & -55% gain
FM3 = 2200RPM & -50% gain


So is there a way to do this using mixes in a DX18 ? I've tried a conventional mix but it doesn't quite achieve what i want. For instance If I use (say) a -110% mix I get:
FM1 = 1800RMP & -50% gain
FM2 = 2000RPM & -55% gain
FM3 = 2200RPM & -60% gain

This is ok if I'm in FM2, but the gains are wrong for FM1 or FM3

Any 'mixing wizards' out there?.. Maybe it cant be done?
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