Spirit on Goblin 570 Delphin in Forward

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cc1975
Posts: 22
Joined: Thu 24. May 2018 9:04:13

Hello, i have Delphin Behaviour in Forward Flight.
Should i increase Cyclic Feed Forward from 4 to 6 to eliminate? Elevator Filter is on 4. Cyclic Gain is on 60. Flight Style is 5. RPM 1700 and 2100.
Greetings Christian
cc1975
Posts: 22
Joined: Thu 24. May 2018 9:04:13

Or should i reduce Cyclic Gain from 60 to 55?
ZeXx86
Site Admin
Posts: 12836
Joined: Mon 29. Apr 2013 16:06:44
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Hello,

you should reduce Elevator Filter to 2-3.

Possibly the problem could be in incorrect setup of the Geometry 6° parameter.
Is the problem occurring also when you are not moving with Collective Pitch at all?

Dolphin can be caused by a several factors:
a) Main blades are very aggressive and not optimal for FBL usage.
b) Cyclic Travel Range is limited in the software too much - increasing Aileron/Elevator Range in the Limits tab will help.
c) Servos are not mechanically configured properly - especially mechanical center could be off. In that case configuring it according this guide will solve all possible problems and imprecisions: http://manual.spirit-system.com/index.p ... tive_Pitch
Spirit System developer
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