Goblin 420 sport

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latjo-k
Posts: 131
Joined: Fri 06. Dec 2019 8:22:54

Hi
A question, on G420 the links from servohorns to swashplate are fixt lengdt,and they are to short so when
servo horns are at middle the antirotationsarms pointing down,and i get more negative pitch,
and how should i level the swashplate?Anyone know how to deal whith this issue?
//Latjo
ZeXx86
Site Admin
Posts: 12836
Joined: Mon 29. Apr 2013 16:06:44
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Hi,

you should make all servo push rods longer. This will increase collective pitch so that it can be at 0°.
Spirit System developer
FrankFuss
Posts: 114
Joined: Tue 17. Mar 2015 3:10:20

The servo links are fixed length, but the links from the swashplate to the main blade grips are adjustable for zero pitch. You tweak the Spirit Subtrim (tuning) parameters to level the swashplate.
latjo-k
Posts: 131
Joined: Fri 06. Dec 2019 8:22:54

Hi
Yes i have done it that way,but the geometry is not perfect either the servoarm arent at 90deg or the
radius arms.
i planing to rise the 3 servosupport abaout 1mm then the geometry should be perfect.
//Latjo
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