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Home✈️Aircraft🚁HelicopterBeginners Corner › tracking problem with kyosho nexus 46 flapping head
04-19-2016 02:04 AM  4 years ago
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motorrc

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tracking problem with kyosho nexus 46 flapping head
I am having a problem with a kyosho nexus 46 flapping head. When I take off, the blades track perfectly, however after a few minutes of forward flight, the tracking is way off. The blades seem to be in balance, flybar straight, paddles balanced and equal distance from the hub. The hidged feathering shaft is straight and moves freely, blade grips are free moving without binding. I'm not sure where to go from here, any thoughts would be appreciated.
if it doesn't fit, make it fit but don't force it.
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04-19-2016 04:00 PM  4 years ago
artimus

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Buckley WA

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Try different blades see if that is the issue. Every thing else sounds good. Maybe head dampeners need replaced.Fly Hard......Team Viagra
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04-19-2016 06:40 PM  4 years ago
motorrc

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kyosho flapper head tracking
will do-Thanks for the input!
if it doesn't fit, make it fit but don't force it.
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04-19-2016 11:26 PM  4 years ago
Rafael23cc

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Junction City, KS

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I seriously cannot remember the issues with my Concept. But everytime I had a tracking issue with my Raptor, where it would be ok for take off then it would go bad during flight, it was a worn ball link. Or more specifically a stripped plastic link where the rod threads into the link.

hope that helps.

Rafael
Keep your feet on the ground, but your eyes on the sky.
Team Heliproz.com
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04-20-2016 02:38 PM  4 years ago
motorrc

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thanks! I'll check that.if it doesn't fit, make it fit but don't force it.
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04-21-2016 05:09 AM  4 years ago
artimus

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Buckley WA

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Early Raptors had a blade flutter issue....they even had a name for it, but I cant remember it. If I remember it had to do with the trailing edge blade grips. You had to flip the grips to a leading edge blade grips to fix it. Then you had to flip you washout arm and mixing arms too.....remember these were fly bar helis......Fly Hard......Team Viagra
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04-21-2016 07:21 PM  4 years ago
Rafael23cc

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My Raptor is a V2. Never had the wobble issue. The stripped links on the other hand........ Almost after every crash.

Rafael
Keep your feet on the ground, but your eyes on the sky.
Team Heliproz.com
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04-21-2016 07:57 PM  4 years ago
artimus

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It was a real problem in the past on the v1 with woodies...woof and poof.

Here a link to my search
https://rc.runryder.com/search/?q=woof+and+poof
Fly Hard......Team Viagra
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04-23-2016 03:44 AM  4 years ago
balsabasher

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Central Ohio, USA

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"Woof and poof!" I remember the sound.
Man I am starting to show my age.
Blades; what goes around, comes around!
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04-23-2016 05:11 AM  4 years ago
marc8090

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Long Island, N.Y.

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On a flybar heli, most tracking issues which come and go that I've seen were related to a loose mixing arm, either the bolt the arm pivots on or one of the balls screwed into that arm.
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04-23-2016 06:11 AM  4 years ago
MDSCUSTOMS

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Artimus - blade grip linkages should always be on the leading edge, sounds like that was a bad design from the start.

Mark
I'm only here coz I'm not all there !!
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04-25-2016 04:28 PM  4 years ago
Rafael23cc

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balsabasher
"Woof and poof!" I remember the sound.
Man I am starting to show my age.
If "Woof and poof" is making you show your age, what does talking about the flapping head of a Nexus do to the rest of us?

Rafael
Keep your feet on the ground, but your eyes on the sky.
Team Heliproz.com
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04-25-2016 08:40 PM  4 years ago
old nitroman

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Naples florida

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what about fixed pitch and no gyro,set the pitch by bending the plates 4ch radioE5s and E7se,and a 766, Roban bell 222 800 superscale,450 bell 4 bladed head,gobby 380and 420 ,180cfx
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04-26-2016 03:30 AM  4 years ago
GREYEAGLE

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Flat Land's

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Grease your dampers and feathering spindle. Maybe able to get it to wick - just how you store it for a few day's. Side or Side

If your crafty : you can drill the head block on the side / maybe 1/16 " so the grease will exit thru centrifugal force to lube thing's.
Then the trick to get it in their .

Will also on occasion's intentionally pull certain bearing shields in specific area's to let the mechanical forces do the work. PM Stuff

I use a pure syn grease that does not attack rubber. It's a VL -G1 grade near pure silicone in a synthetic base. Believe the name or product has now been purchase by Tri Flow - maybe it use to be Slick 50.

On sealed bearings - DO Not use Lithium - clay base
greyeagle
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04-26-2016 03:36 PM  4 years ago
artimus

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Buckley WA

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Artimus - blade grip linkages should always be on the leading edge, sounds like that was a bad design from the start.
Yeah... thats how we got to where we are today , by finding out wht works and what dont....hell we were flying wooden blades back then too....

I guess you just took us down Memory lane....sorry if we got off track.So to speak.....back to tracking issues.
Fly Hard......Team Viagra
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04-26-2016 04:22 PM  4 years ago
MDSCUSTOMS

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No problem Artimus. Some of my Heli's still do have wooden blades on them too. I've just put a new pair on a Micro Mold Lark that I have just restored Most of my machines are vintage.

Regards

Mark.
I'm only here coz I'm not all there !!
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04-27-2016 06:21 PM  4 years ago
balsabasher

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Central Ohio, USA

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"If "Woof and poof" is making you show your age, what does talking about the flapping head of a Nexus do to the rest of us?"

Actually that was during the same time period!! Both late 90's helis.
Blades; what goes around, comes around!
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04-27-2016 11:15 PM  4 years ago
Rafael23cc

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Junction City, KS

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Some of us gained experience with flapping heads BEFORE the Nexus ever came out. That is where my comment was headed. But If i remember correctly, the Nexus had a minimum of 4-5 years on the Raptor. Seems like nothing now.

The "woof and poof" was not a problem that people encountered right away. I never had a woof and poof on my V1 using wooden blades and a Thunder Tiger engine.

Rafael
Keep your feet on the ground, but your eyes on the sky.
Team Heliproz.com
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04-28-2016 12:44 AM  4 years ago
grimthenoble

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San Luis Obispo, CA

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Nexus 46
Put that old heli on the shelf!
Never go Full Retard!
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04-28-2016 02:37 AM  4 years ago
MDSCUSTOMS

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Possibly the simplest Flapping (and Flybarless) CP head you will ever see and it still flies. Kalt Baron 20 Mechanics in there. I've got 2 of these now. The other is my first Heli that I bought back in 1983, still in original set-up and still flying.

Mark
I'm only here coz I'm not all there !!
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Home✈️Aircraft🚁HelicopterBeginners Corner › tracking problem with kyosho nexus 46 flapping head
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