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HeliHobby . Ron’s HeliProz South . Century Helicopter

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JR Heli Vibe - Airskipper - Sylphide - Venture > Airskipper problem
 
 
copterviews
Key Veteran
Location: Myrtle Beach SC

I am having a hell of a time finding what my problem is....
about 60 flights, no crashes, no changes, blades won't track after I roll the machine. After any roll maneuver, the blades are out of track by at least an inch!
I know, you guys are saying change the dampeners....
I did, did not make a difference...
The head is good and tight, blade grip bearings look/feel good, etc..
Any ideas where to look next?
02-16-2008 01:21 AM
HOMEPAGE  
 
 
CaptainClunk
Heliman
Location: florence,SC,USA

I'll give ya $500 for the Airskipper Final offer

Can't believe that this is happening to your Skippy. Hope someone can offer some insight!?

P
02-16-2008 01:58 AM
 
 
copterviews
Key Veteran
Location: Myrtle Beach SC

HA!
02-16-2008 02:47 AM
HOMEPAGE  
 
 
Eury
Elite Veteran
Location: Ankeny, IA, USA.

Most problems I've seen like that are a loose ball link, or a bent link.


Nick Crego
As I wind on down the road...
02-16-2008 03:02 AM
 
 
copterviews
Key Veteran
Location: Myrtle Beach SC

nope, changed all the links amd ball ends, no bends.
02-16-2008 02:23 PM
HOMEPAGE  
 
 
mdu6
Veteran
Location: Montreal

The dampners are tricky to get right

The best combo I've found is to use Infinavation (INF-05009) for SCEADU
and either change the oring for fatter ones or put heat shrink over it.

They then fit perfectly in the JR head.

It can be use without this mod (oring or heat shrink) but I felt it was just a bit loose in the head ! Someone could probably also use some thin brass foil to 'shim' the head to a smaller internal diameter.

One last option to add is to put some tubing over the center of the spindle shaft so it's a tight fit in the hub.
02-16-2008 02:28 PM
 
 
copterviews
Key Veteran
Location: Myrtle Beach SC

I am using the stock dampners this time as well, again I have had @6 60 flights with no problems?
I would "assume" the stock ones would work at least for a little while.
02-16-2008 02:38 PM
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AltecLansing
Key Veteran
Location: Under the tire of a truck

If you sell Captain Clunk the heli for 500, I'll give Captain Clunk 250 for it.

Man, I miss the eighties.
02-16-2008 02:48 PM
 
 
mdu6
Veteran
Location: Montreal

Yes they can work, but not consistantly.

There has been a good number of posts over this when the machine came out with a couple of other suggestions like KSJ502 dampners, flipping the spindle collar (70504), but for me all of those simply delayed the problem.

The only other solution that was explained to me (I did not try this) is to use a Sceadu spindle which is a little bit shorter, so I guess shimming the current spindle should also work out ...
02-16-2008 02:49 PM
 
 
opti
Heliman
Location: clagiraba, queensland, australia

i had a similar problem with mine and it was the blades,im now ubsing ziggsaws and have no problems.
tha other up grade i did was put the ce full metal head on ,this not only looks good but is also stiffer than the stock one,cost about 170 dollars
part numbers are ,84031 head assembly
61139 washout
60992 asg washout arms
champ rc have them in stock,hope this helps
02-16-2008 08:42 PM
 
 
BlueGarry1
Veteran
Location: Romford, Essex, UK

This cured my problem completely. I've used Radix 600mm blades and SAB 620mm blades, both track like a dream.

Slot the alloy collars in either side of the head block, slide in the feathering shaft, and push 2 of the supplied 'O' rings on either side until they locate into the collar.

Forget the K&S502 hard dampers, these are better, and they're an original JR part.

Bluegarry1



Airskipper 50 & Vibe 50 Just love 'em !!
02-17-2008 01:42 AM
 
 
copterviews
Key Veteran
Location: Myrtle Beach SC

Two different brands of 620 Wide cord blades, both have tracking problems, go back to my set of 600 razors, no more problem, I could not make them go out of track!
Seems peculiar to me? Possibly the different moments of the larger cord/length blades?
As is tight on the head though.....
02-17-2008 02:38 AM
HOMEPAGE  
 
 
CrashMaster91
Senior Heliman
Location: Phoenix, AZ

Check your blade tightness. I had a rex 450 that would track like a dream and one role later, it would be all out of control and vibrating because the blades were so far apart.

My anger affects the way I fly. The madder I am, the harder I fly.
02-17-2008 06:17 AM
 
 
copterviews
Key Veteran
Location: Myrtle Beach SC

Blades tightness is good.
02-17-2008 02:56 PM
HOMEPAGE  
 
 
copterviews
Key Veteran
Location: Myrtle Beach SC

I put the Razors back on and they work flawlessly,
600's non wide cord, wonder why these blades (I have tried Radix 600's as well and they worked great also) work well where the MAH's and Maveriks do not?
02-21-2008 06:41 PM
HOMEPAGE  
 
 
copterviews
Key Veteran
Location: Myrtle Beach SC

Re asking the question?
Do you guys have any idea why my Airskipper flys/tracks fine with Razors and Radix 600's but does not keep the track after rolling maneuvers when I have 620 wide cord blades on (both G5 pros and MAH's)?
03-06-2008 11:38 PM
HOMEPAGE  
 
 
mdu6
Veteran
Location: Montreal

Must be related to the CG of the blade and the feathering/flapping induce by the blade.

You could try flipping the grips to get a leading edge configuration.
03-07-2008 01:07 AM
 
 
snobdrs
Senior Heliman
Location: coatesville,pa-usa

Dumb question but might help. Does this happen rolling both directions?

Support your local hobby shop
03-07-2008 01:17 AM
 
 
copterviews
Key Veteran
Location: Myrtle Beach SC

yes both left and right, but not forward backward flips!!
I cannot make it do it any other way other than rolls, not even very sharp left and right input. It has to be complete rolls. My rates a very sedate (by 3D standards)as well as I typically fly FAI style maneuvers.
03-07-2008 04:20 PM
HOMEPAGE  
 
 
Mastertech
New Heliman
Location: Southeast USA

Airskipper

Is the Airskipper a good second heli after a small elec?
04-30-2008 03:25 AM
 
 
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MTA Hobbies . MRC/Altech Marketing USA . Gyro Hobbies

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JR Heli Vibe - Airskipper - Sylphide - Venture > Airskipper problem
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