Possible bug in 3.1 on take off with ALT_HOLD

ArduCopter Copter 3.1
1

Hi to everyone.

I have a hexacopter with arducopter 3.1. Everything is working superfine!!! Thanks to Developers!

I notice something on the takeoff.

Procedure of Takeoff #1.

  1. Turn the receiver on and set the switch of flying modes to STABILIZE.
  2. Connect the battery to Hexacopter
  3. Arm on Stabilize.
  4. Change flight mode to ALT_HOLD.
  5. Start to increase the throtle.
  6. When the throtle, goes just a click more than the 50% is start taking off slowly and normaly.

Procedure of Takeoff #2.

  1. Turn the receiver on and set the switch of flying modes to STABILIZE.
  2. Connect the battery to Hexacopter
  3. Arm on Stabilize.
  4. Disarm on Stabilize.
  5. Change flight mode to ALT_HOLD.
  6. Arm on ALT_HOLD.
  7. Start to increase the throtle.
  8. When the throtle, goes just a click more than the 50% is start taking off slowly and normaly.

Procedure of Takeoff #3.

  1. Turn the receiver on and set the switch of flying modes to STABILIZE.
  2. Connect the battery to Hexacopter
  3. Change flight mode to ALT_HOLD.
  4. Arm on ALT_HOLD.
  5. Start to increase the throtle.
  6. with two three clicks the hexacopter start to taking of right away (very fast) it does’t going to 50% and then to start to climbing .

On the 2 first procedures always I have success takes off on ALT_HOLD.
On the 3rd I have the same problem anytime. I can reproduce it.

Can anybody try the above and let me know is something is on my configuration, or this is a bug.

THANKS IN ADVANCE!
HAPPY NEW YEAR TO EVERYONE!

2

Thanks for you report, so you mean if i takeoff in Alt-Hold without use the Stabilize mode at least once after i connect the LiPo the problem occurs?
Tomorrow I check, very strange.

3

[quote=“marco3dr”]Thanks for you report, so you mean if i takeoff in Alt-Hold without use the Stabilize mode at least once after i connect the LiPo the problem occurs?
Tomorrow I check, very strange.[/quote]
Correct. Thanks for your reply!

4

Hi Marco!
Did you have a change to try it?

Thanks once again!