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HomeAircraftHelicopterBeginners Corner › tracking problem with kyosho nexus 46 flapping head
04-19-2016 02:04 AM  31 months agoPost 1
motorrc

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canton ohio usa

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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.

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04-19-2016 04:00 PM  31 months agoPost 2
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  31 months agoPost 3
motorrc

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canton ohio usa

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kyosho flapper head tracking
will do-Thanks for the input!

if it doesn't fit, make it fit.

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04-19-2016 11:26 PM  31 months agoPost 4
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  31 months agoPost 5
motorrc

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canton ohio usa

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thanks! I'll check that.

if it doesn't fit, make it fit.

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04-21-2016 05:09 AM  31 months agoPost 6
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  31 months agoPost 7
Rafael23cc

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Junction City, KS

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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  31 months agoPost 8
artimus

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Buckley WA

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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  31 months agoPost 9
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  31 months agoPost 10
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  31 months agoPost 11
MDSCUSTOMS

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North Wales, U.K.

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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  31 months agoPost 12
Rafael23cc

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Junction City, KS

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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  31 months agoPost 13
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 radio

E5s 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  31 months agoPost 14
GREYEAGLE

rrElite Veteran

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  31 months agoPost 15
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  31 months agoPost 16
MDSCUSTOMS

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North Wales, U.K.

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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  31 months agoPost 17
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  31 months agoPost 18
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  31 months agoPost 19
grimthenoble

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Viroqua, WI

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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  31 months agoPost 20
MDSCUSTOMS

rrApprentice

North Wales, U.K.

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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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HomeAircraftHelicopterBeginners Corner › tracking problem with kyosho nexus 46 flapping head
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