Is there a speed limit in Autopilot mode?

ArduCopter Traditional Helicopter
1

Hello.
I am unable to get the speed with the engine powered helicopter that has been working with you guys for some time now.
Looking at the log data, it appears that the limit or once deceleration occurs at about 60 km/h, just before the set speed value.
What is causing these?
Thank you.

2

hi @itagaki-jetset ,
your max angle is set to 15 degrees:

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that is limiting your forward speed.

3

Thanks for the response.

I will adjust the angle in the next test, but I think the distance between the WPs also has an impact.
How about that one?

Best regards.

4

You are right, surely has an impact, but I think you need more authority headroom in attitude.

5

Thanks for the reply.
Are there any other restrictive settings besides angle that are trapped for speed?

We have received suggestions about vibration in the past, but could not improve it much due to the hardware.

Best regards.

6

IIRC Arducopter will slow down if it can’t stop between the next waypoint and the one after it.

7

Thanks for the reply.
In my testing, I put a 4 second delay on each WP.
The aircraft is flown in a straight line with an interval of 100 to 200 m between WPs that bring the aircraft to a stop.

8

Depending on which delay you used stopping is expected.