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HomeScaleAircraftScale HeliScale Helicopter Main Discussion › Phasing a 4 bladed rotor head
09-01-2015 12:55 PM  3 years agoPost 1
epryor

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Grandview mo,

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I need help! I have a Trex 700 gasser that I'm trying to setup the rotor mechanically to put in a scale body. the problem I have is phasing, I'm using a vario head,swash and follower. if I set the rods at angles I get no movement with blade over the boom that is what I want, but the angles are too extreme for my liking. I would like to have them vertical, the problem with that is now everything moves. I'm using a AR7200 BX for gryo,

Batman - Scale it up

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09-01-2015 02:04 PM  3 years agoPost 2
don s

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Chesapeake, VA

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You will have to utilize digital phasing within the FBL controller.

E820, Raptor G4N, X50F/E, E620, Forza 450, and some planks.

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09-01-2015 02:08 PM  3 years agoPost 3
chopper37

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NJ and Long Island

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...

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09-01-2015 02:39 PM  3 years agoPost 4
coptercptn

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Mesa AZ. USA

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Yes indeed the 7200bx does have electronic phasing. Go into the computer program under swash mix and you can find it...

You will have to select your swash setup (IE..120, 140, 90 etc) then you can use the arrows provided to move the swash until you get proper phasing..
After you do that, then you have to go and do the 6 degree thing...

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09-01-2015 02:41 PM  3 years agoPost 5
chopper37

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NJ and Long Island

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Learn something everyday, never used the software to program a 7200 I'll have to check that out.

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09-01-2015 03:32 PM  3 years agoPost 6
epryor

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Grandview mo,

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Okay, I will try that.

Batman - Scale it up

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09-01-2015 04:53 PM  3 years agoPost 7
coptercptn

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Mesa AZ. USA

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Yep, very easy to do

Go to the beastx site to download the program.. The nice thing now is you don't have to enter in the serial number etc. as before.. And you can update the firmware on any controller..
You need to download the "studioX" software. (Free) under the support tag

Home of the "Sea Cobra".....

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09-01-2015 05:24 PM  3 years agoPost 8
epryor

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Grandview mo,

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I will let you guys know how it turn out this evening.

Batman - Scale it up

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09-01-2015 11:29 PM  3 years agoPost 9
antja

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Levin new zealand

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phasing
phasing can be done manually,set the links vertical put one blade over the tail, and use program mixes 1 and 2 in your radio to dial out any movement.

Tony.

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09-01-2015 11:41 PM  3 years agoPost 10
epryor

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Grandview mo,

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I thought you can't have any mixes. with a stabilization system?

Batman - Scale it up

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09-01-2015 11:52 PM  3 years agoPost 11
coptercptn

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Mesa AZ. USA

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You cannot have any mixes in the radio!

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09-01-2015 11:54 PM  3 years agoPost 12
antja

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Levin new zealand

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you are right if you are using a stabilisation system I had not realised you were using one.

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09-02-2015 12:45 AM  3 years agoPost 13
epryor

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Grandview mo,

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Guys I think I got it phased, I'm not getting any movement over the boom. I program the BX with the PC at 45 degrees and it seem like it worked out.

Batman - Scale it up

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09-02-2015 02:57 AM  3 years agoPost 14
rcheli808

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Mililani,Hi-USA

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Good Job epryor and way to go cptn.

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09-02-2015 03:17 AM  3 years agoPost 15
coptercptn

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Mesa AZ. USA

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Good job!! Just be sure you phased in the "correct" direction for your head movement.. IE clockwise/counter clockwise...(the blade over the tail will not move either way.. But a crash is imminent if it is wrong!!! 👿
The simple test is to move the aileron and assure the swash is tilting to the correct side per stick input. Even if it is not a perfect 90 degrees ( and due to phasing it shouldn't be) it should still go to the correct direction.
After this you can go into setup"J" and adjust for the cyclic geometry (6 degrees) with the blue led showing.
Once all that is done.... Go fly!!!

Home of the "Sea Cobra".....

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