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HomeScaleAircraftScale HeliScale Helicopter Main Discussion › MultiBlade FBL Collective Setup
12-01-2015 05:57 PM  34 months agoPost 1
MXCobra

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Petoskey, MI

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I have setup multiblade heads using both V-Bar and Skookum FBL Systems. I have always followed their respective scale wizards and mechanically set 0 pitch at mid-stick and then used my radio pitch curves to give me roughly -2, +5, and +11 at low, mid, and high stick. Is this what other scale builders use or can the initial mechanical setup be done with +5 at mid stick without effecting the operation of the FBL system? Seems like this might give me better pitch resolution from the servos or I just may be overthinking this

Rick

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12-01-2015 06:12 PM  34 months agoPost 2
doorman

rrProfessor

Sherwood, Arkansas

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Pitch Settings
Hi Rick,

I have done it both ways...and both worked out fine..
If you are having to raise your pitch curve much over 60% to get you center hover, you might have the balls out too far on the servos.
I like to leave my pitch curve as close to linear as possible l 0 mid 50 hi 100..
Hope this will make sense to you...

Stan

AMA 2918-Team Spin Blades,,Castle Creations, Unique Aircraft

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12-01-2015 06:14 PM  34 months agoPost 3
Keygrigger

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Mississauga, Ont. Canada

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That's the way I have been doing it. I find that the easiest way to set the pitch is to have +-12 degrees in the main setup and start with mid-stick set so that it gives me +5 degrees for a start. From there, I tweak the mid-stick point until the helicopter flies level. Hover will use a slight amount more pitch and you will find you will lower the stick a bit once you are moving forward at slow to medium speed. Mechanically setting up 5 degrees pitch at mid-stick will give you slightly better mechanical resolution but the amount you move the stick will be the same, once you have it all set up. Not all helicopters will hover at +5 degrees, either. If you set it up for that and you find you need to bump it up or down a bit, then you will find yourself back at the mechanical adjusting procedure until it finally meets the helicopter's needs. Hope this helps.

Don

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12-01-2015 06:32 PM  34 months agoPost 4
MXCobra

rrNovice

Petoskey, MI

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Stan & Don, thanks for the quick feedback. Helps a bunch! I'm rebuilding the AS350 I had at Dalton and was at this point of the setup.

Rick

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12-02-2015 04:40 AM  34 months agoPost 5
Mojave

rrElite Veteran

Palos Verdes, Ca. USA

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I set mine up mechanically to have hover pitch at mid stick.
Barry

All helis and planes have an expiration date stamped on them...you only find it after you crash!!

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12-02-2015 11:47 AM  34 months agoPost 6
Thumper217

rrApprentice

Slidell, LA - USA

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Hey Rick I have an AS350 with the Skookum 720 in it and like the three pros posted before have found that setting it up mechanically is better than messing with the pitch curves. It's a little more work that way as it takes some test hovering and then physical adjusting but the end result I think is better and leads to good smooth flying heli.

Post some pictures of the rebuild would love to see your progress.

Andrew

Thumper

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