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HomeAircraftHelicopterGasser Model RC HelicoptersOther › Blade pitch settings
02-27-2016 05:22 AM  28 months agoPost 1
Scorpion

rrApprentice

Socal USA

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I'm trying to set the blade pitch on my goose 120 CCPM but I'm getting to much negative -14 at low stick and only +3 at the top......i tryed adjusting the links mechanically no trim played with swatch mix and still can not get -6 plus +10 on top
any ideas?
Oh by the way the radio is a Turnigy 9X
Thx

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02-27-2016 05:44 AM  28 months agoPost 2
rbort

rrProfessor

Franklin, MA - USA

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Adjust links
Either raise the whole swash by adjusting the 3 links to the swash 6 turns longer, or if that makes the swash too high in the range then adjust the links going from the swash up to the blade grips 6 turns longer, or split the difference move the swash up 3 turns and the grips up 3 turns for example.

Unscrewing the links make sure you keep the same amount of thread in both links on a rod, so if one ends up to be unscrewed too much after turning it out 6 turns close it one turn and open the other 1 turn and repeat until threads are equal.

Once you have adjusted the links you should end up with about -8.5 and +8.5 degrees. Then adjust the overall throw in the flybarless system (example the Bavarian Demon) in the Mixer page for collective pitch to a higher number, if it was at 80 for example increase it to 95 and check pitch up and down again, they should both increase by about 3 degrees (-11.5/+11.5)

Don't quote me on the exact numbers, its just an educated guess of how many turns to put you in the right ballpark.

Hope this helps.

-=>Raja.

MA 1005 Hanson 280, 4210 flts
Spectra 27 3DMax, 3280 flts
Whiplash V1-2 Hanson 300, 1555 flts
Whiplash V2 Hanson 300, 393 flts

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02-27-2016 07:09 AM  28 months agoPost 3
Scorpion

rrApprentice

Socal USA

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rbort, thanks for the quick reply....i'm working on the airstar mongoose
flybar rotor head according to the specs it should be -6 and +10 total travel

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02-27-2016 02:44 PM  28 months agoPost 4
rbort

rrProfessor

Franklin, MA - USA

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Depends
Are you going to 3D it or fly it upside down?

If so then make it even, + and - 10 degrees with zero in the middle. Whatever the high/low degree mark should be whatever the engine can handle at your idle up speed with a little bit of headroom.

-=>Raja.

MA 1005 Hanson 280, 4210 flts
Spectra 27 3DMax, 3280 flts
Whiplash V1-2 Hanson 300, 1555 flts
Whiplash V2 Hanson 300, 393 flts

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03-20-2016 11:46 AM  27 months agoPost 5
flynbryan

rrApprentice

Long Island N.Y.

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Mongoose
The mongoose I had was 4 servo 90 degree and I converted to 3 servo 120. I ordered 70mm link rods and put "Z" bends in them. I always set up my swash plate at the halfway point of it's travel and my servo horns at 90 degrees to maximize my plus and minus collective

It flew perfect!

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