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01-18-2009 03:08 AM  9 years agoPost 1
fenderstrat

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Aston,Pa

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just a little update on the phasing thing that we were discussing on another thread.I did not want to hijack SLIDERS thread,so i'll just start a new one.

the phasing,as it relates to the ATOM,has taken a few twists.Finless BOB was asked to try a set of the ALIGN CF blades,and could not get any phasing issues at all,none

on a side note BOB also checked a few REX 500's and they ALSO have phasing built in,not as much as the ATOM but its there,I think maybe 2 or 3 deg,very interesting

also 1 or 2 of the guys who were experiencing phasing issues did a complete re-set up of the head,and guess what??,the phasing issues DISAPPEARED,the heli flies perfect.....again VERY INTERESTING

just thought I'd share

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01-18-2009 03:39 AM  9 years agoPost 2
toolman18

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Portland Tx

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Very interesting Fender. And thanks for the update.

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01-18-2009 02:23 PM  9 years agoPost 3
slider46

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Ocala Florida

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Gee setting up the head correctly will fix the phasing issues, Who would have thought about that???? I bet it also fixed all of the other issues they were having..... That is great news Fender that it's just a set up problem, because everyone is ready to blame the heliand company for their lack of skill or mechanical ability.....
This scrws up my plans of buying an Atom dirt cheap and resolving the problem on my own......

Tom..... No "D" flying....

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01-19-2009 06:07 AM  9 years agoPost 4
Funky Trex

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Westerville, OH - USA

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on a side note BOB also checked a few REX 500's and they ALSO have phasing built in,not as much as the ATOM but its there,I think maybe 2 or 3 deg,very interesting
Have you checked one yourself? I have a Trex 500 right in front of me and the phasing looks right on.

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01-19-2009 12:31 PM  9 years agoPost 5
fenderstrat

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Aston,Pa

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no,I have not,just reporting what finless said.if you need to see his statement,there is another site it is posted on

here is a direct quote from the other site
Oh and also after looking carefully, I found that the Trex500 also has a little phasing built int he head! I checked 3 500's and sure enough there is a little phasing in it. Not as much as the Compass but it has some for sure

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01-19-2009 03:53 PM  9 years agoPost 6
Funky Trex

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Westerville, OH - USA

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I don't need to see anybody's statement, I can just look at the heli right in front of me.

This pic is with my rear swash balls perfectly lined up.

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01-19-2009 04:05 PM  9 years agoPost 7
Melnic

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Columbia, MD,USA

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How would one "test" for phasing?

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01-19-2009 04:09 PM  9 years agoPost 8
Funky Trex

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Westerville, OH - USA

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Just line up the 2 rear swash balls (inner and outside ball). If the flybar is not straight down the center of the heli, the phasing is off.

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01-19-2009 05:25 PM  9 years agoPost 9
tryan02

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Canton, Missouri

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Well it seems to me that phasing is not a bad idea? I have noticed the molded plastic swash mixing arms play a huge part in this but most of a V1 450 head is set. I can find nowhere in the head to get this phasing I have out. Do the manufacturers hide this from us purposely?

My 450 has plenty a degree or two really to hard to tell just by lining up the balls you could be about a degree off but you can tell if some is there or not. Tailin it falls in the X/Y phase quadrant of what I would assume is positive phasing?

No Really I am the club President!!!

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01-19-2009 06:34 PM  9 years agoPost 10
rccarguy

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Boston MA

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can find nowhere in the head to get this phasing I have out. Do the manufacturers hide this from us purposely?
I think it's more likely manufacturing tolerances in this case. Could well be the pins for the washout aren't exactly where they should be in the head, or bent ever so slightly, causing other things to not line up properly???

Wouldn't take much of a misalignment to get it off enough for a degree or two of unintentional phasing to occur, not that anything like that ever happens with heli parts

XCell Spectra G
Radikal G20
Some obsolete nitro helis too...

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01-19-2009 06:52 PM  9 years agoPost 11
Funky Trex

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Westerville, OH - USA

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My 450 has far too much slop to check the phasing. I can make the phasing go either way a couple degrees because of the slop in the swash bearing, lower mixing arms and washout base. I don't think a degree or 2 is really a problem anyways. Some people tweak the phasing on machines where this is adjustable to get the heli flipping more in line although I haven't heard of them tweaking it to the degree that it is built into the Atom's head. I own a couple helis with adjustable phasing but I have never felt the need to change it.

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01-19-2009 07:07 PM  9 years agoPost 12
LaurenceGough

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UK

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I just looked at my Dragonus 450, the flybar is off quite far with the two rear swash balls lined up...

Nothing to worry about then?

Maybe it needs some there, it seems to be in the washout arms to the swashplate (angle isn't adjustable). Next to no slop.

I checked for phasing interactions and there wasn't any...

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01-19-2009 07:17 PM  9 years agoPost 13
tryan02

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Canton, Missouri

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I just went through my TREX450SEV1 and you seen the degree or two of phasing in the picture above. I Did check every little thing I could as far as slop I did have some in the washout linkage the screws both had backed out a bit over a years time. That's one of those things I left up to align to use loctite on. But that was all I had other than the one upper dogbone ball links I use the most for tracking and that was not effecting phasing nor worth changing out.

So I believe I have done a (valid eyeball check) of phasing and I am out good thing I dont do any rolls yet huh?

Although I guess one could ass-u-me that like was mentioned especially on smaller helis tolerances would be harder to hold to.

No Really I am the club President!!!

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01-19-2009 11:02 PM  9 years agoPost 14
fenderstrat

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Aston,Pa

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hey,I wasn't making any personal statements just relaying info from what most consider a very reliable source,and honestly, that pic of the rex 500 does not look lined up to me,looks like the flybarcage and blades are just slightly shifted,the spindle is not 90deg to the body,looks like just a tiny bit of phasing to me

look carefully at the flybar cage and compare it to the canopy mounts,its not square,the flybar is not a guarantee as it could be slightly bent,but use the cage as a guide,its off

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01-19-2009 11:18 PM  9 years agoPost 15
Funky Trex

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Westerville, OH - USA

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Are you saying my flybar is bent equally in opposite directions so it just looks like the phasing is on? I think it is much more likely my aftermarket canopy is just bending the plastic canopy supports. Either way, its no big deal. I was just pointing out that I don't think the 500 has 2-3 degrees of phasing. Maybe 1 degree tops, but it looks just about dead on to me.

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01-19-2009 11:26 PM  9 years agoPost 16
fenderstrat

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Aston,Pa

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I think it is clear from that picture the blades and spindle are not 90 deg and the flybar cage is not square looks to be about a deg or 2

I am willing to bet if you square up the flybarcage the balls will no longer line up

and i dont know whether its camera angles or shadow but the flybar actually looks like its bent right where the gyro is

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01-19-2009 11:38 PM  9 years agoPost 17
Funky Trex

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Westerville, OH - USA

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There is no sense in going back and forth about it. I am sure you are right... what would I know

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01-19-2009 11:52 PM  9 years agoPost 18
fenderstrat

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Aston,Pa

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thats fine,i dont own a rex 500 and most likely never will.as said earlier I was just relaying info.Tons of people hang on Bobs every word(I am not one,but I do respect his knowledge and experience)it would make no sense for him to make a statement like that if he wasn't 100% sure it was correct,especially if it could be disproven very easily.
In realtiy, it makes no difference if there is 0 phasing or 10 deg,if you are happy with a heli and like the way it flies,thats the bottom line

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01-19-2009 11:59 PM  9 years agoPost 19
Funky Trex

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Westerville, OH - USA

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Exactly, if it flies good, that is all that matters.

I just didn't think it seemed right that a Compass field rep was posting second hand knowledge from someone like Finless (like you said, many people hang on his every word) to help justify the built in phasing on the Atom which is much more signifigant than the possible 1 degree on the Trex (not the 2-3 you stated above).

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01-20-2009 12:13 AM  9 years agoPost 20
fenderstrat

rrProfessor

Aston,Pa

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dude you are taking this way too personal,i wasn't justifing anything,just relaying info that OTHER helis have phasing built in,its not just compass,it is a designed in feature that is inherent in many helis,I could care less what people buy or dont buy,my job is mainly to help people online and in the field who ALREADY own COMPASS products,I am not a salesman and make 0 dollars for any helis sold and i dont get paid for what I do,I do it because i like to help people and get enjoyment when i help someone get their gear operating properly

I did not make any performance or judgement statements about any products,just a statement of FACT brought to my attention by a respected member of the RC communtity,about a topic that was being discussed here on this forum,and this forum is about info and the sharing of info.my point was simply that some helis have phasing built in

I cant help the fact that the rex 500 has phasing built in,I did not design it,so i would appreciate you not taking personal shots at me,and assuming I had alterior motives,when all i really did was quote someone else

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