First flights

[CT Aviation]

Got in the first flights on my newly finished 500 today and have a couple of queries,
1, I managed to get the gyro gain up to 98 with no tail wag in HH mode (using the gear switch on a dx7, a 401 and a 9257) do I need a larger servo arm ?
Only get a slight tail movement on hitting the throttle .

2, I set it all up as per manual for throttle curves and it hovers at mid stick in normal with a slight tail bounce which I think indicates headspeed too low ? is it best to increase throttle points or decrease pitch points ?

had a shock when i hit idle 1, by mistake i had set bottom stick at +6 instead of -6, this sent the heli climbing away from my garden (in the middle of a housing estate) and me in a bit of a panic but managed to hit idle 2 and regain control (not pretty flying but got it back !

Chris

[Eduardo]

Certainly you will have more light than mine from other helifreak contributors...

I use the GY-401 and the S9257. My gain is set to 50% and it seems to be enough. The servo arm I use is the round one and seems to do the job.

I noticed that in the T-500 the throttle curves are very different than those on my 450. I use it with 2x 3S 2200map and 13 teeth pinnion. Indeed in my first flights I had similar problems due to low rotation in the blades. I flew it today and increased even more my curves in normal mode. They are now 0 - 60 - 80 - 90 - 100. Pitch curves are linear.

When we have low rotation it is common to see the heli turn a bit when we pump abrupt power. With more RPM I would say it will disappear or will be very minor.

Good luck with your bird and enjoy it.

Eduardo

[CT Aviation]

Thanks Eduardo,
I too am using the small round servo arm so will increase my throttle curve as you have which will also increase the tail sensitivity i presume which in turn will need the gain reducing ( I think ?)
No flying today much too windy fir my current skill level.

Chris

[psindrup]

2, I set it all up as per manual for throttle curves and it hovers at mid stick in normal with a slight tail bounce which I think indicates headspeed too low ? is it best to increase throttle points or decrease pitch points ?
Chris

With my limited knowledge of RC heli's, you should not be hovering mid stick, because at that point, your pitch (curve) should be 0 (zero). When you hover at mid stick, you are hovering with only 80% head speed, and that could be your problem.

Peter