View Full Version : Trex 500EFL PRO Maiden
10-09-2011, 10:39 AM
Wow this is my first 500 and i was so nervous and cautious with the heli. I finished her today and did a maiden.....
you will see the tail wag in the 2nd test hover....The gain on the dx8 is set at 70%....can that be too high....so i adjusted it down to like 50% and the same thing..
but so far i was very impressed...
any ideas to why the tail wag???
10-09-2011, 10:50 AM
I just checked now and think i forgot to add a bit of delay while doing the gyro setup....could it be that???
10-09-2011, 11:23 AM
Ok i added delay. when the delay light started to flash i stopped as i thought that would be enough. Is that correct. my gain is still at 70 on my DX 8.
The heli lifts off excellent and then starts to tail wag abt 3-5seconds after it lifted. Any advice will be appreciated. Should i add more delay or reduce my gain?
10-09-2011, 11:27 AM
Here's me coming in with a response when I'm usually the one doing the asking, so forgive me if I'm way off the mark here.
I set up a 500 ESP FB this weekend and set the gyro gain on my DX8 at 65%, as it had been on my DX6i - and she wagged like a dog with a bone. I checked out the 'net .... and found that the DX8 has a HH scale starting at zero - above is HH, below is Rate. I brought my gain down to 40% and she became as sweet as a nut.
I know you are using an EFL PRO - and I'm interested because I'm in the throes of building one right now :).
10-09-2011, 11:33 AM
mmmm....i know when i use my trex 450 with spartan gyro i only have like 25%....maybe i should dial it down and try....
when changing the gain setting on your radio does the 3gx need to be in DIR mode?
10-09-2011, 12:49 PM
Found my problem...never had the gyro setup on the right radio channel..oops...
got it working now and will test it in the morning sun is down..
10-09-2011, 01:43 PM
the gain resolution on the dx8 is different than on the dx7.
On my 450 beastx i now run 33 in gain on my dx8 if that helps.
Do not use delay .... Run Aux 2 for gyro gain.. Not gear!!!
Try 40% to start... for gain..
The DX8 uses a different gain scale ...
10-11-2011, 10:27 AM
ok the gain is working and no tail wag but now i have a slight tail drift....will place two antivibration pads to prevent the 3gx from getting vibration. and see if that works