nickwap
Veteran
Location: Berwick-upon-Tweed -ENGLAND not Scotland
| Try this
I have 2 JR 490 / JR8700G set ups in a Raptor 50 and a Raptor 90 SE Good Plug and Play gyros I cant take credit for these set up notes but I used these and got a good set up real quick. I use a 9303TX (The 490,UK model is the same as the 500,US model)
I would take time to mechanically set up the tail by switching to 15% gain (non HH) in a steady hover and adjusting the tail drift to zero by adjusting the linkages - after that I just switched to HH and forgot it.
I found the JR Gyro tape to be useless and ended up with a double thickness of 1.5 mm rubber double sided tape - its stuff that I get from work that is used in car bodyshops to attach trim.
JR 500T Connections and set-up
-Plug the white AUX connector into the AUX channel you wish to use for gain
- set your tail rotor servo horn to between 16-18mm from center of rotation to ball link.
-Set rudder ATV/Travel Adjust to 150% both ways and do not adjust!
-Set Rudder dual rates to determine piro Rate. A good starting value is 55% and can be increased at pilot’s discretion. Note: start with a low setting and work up as a 100% value can be violent and blow a crown gear or cause loss of control. Make sure to set all of the stick positions for dual rate and expo! (Don’t forget to set both sides of the switch and leave one at 100% default!)
-Rudder Expo sets how hard the gyro hits. Start out with a high number (50-60%) and work up or down from there.
-Gyro gains needs to be as high as possible without wagging (if gyro wags reduce speed immediately to stop wag, land and reduce gain. See Chart for gain values!
Use the ATV Output% to set gyro to either Heading Hold or Rate Mode. Each % of output equals 2% Gyro Gain
Gyro sensitivity function is desirable to select gyro gain
Example: 85% ATV/Travel Adjust value equals 70% gyro gain is Heading hold mode. 15% ATV/Travel Adjust is equal to 70% Rate mode gain.
ATV Output % 100 100 Heading Hold Mode
90 80
80 60
70 40
60 20
50 0 0 % Gain
40 20 Rate Mode
30 40
20 60
10 80
0 100
HTH Nick
Synergy N9, 600N, R90SE, JR9303 2.4 now all I need is some skill! |
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