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MSH Protos, Mini Protos
› Spongy dampers...
07-11-2008 08:41 AM  9 years agoPost 1
OICU812

rrMaster

Edson, Alberta,​Canada

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Anyone shimming theirs or got an alternative??

After less then 20 flights I have a huge amount of teetering and the dampers are sponged,,,, I do hope K&B will make some for this heli....

...Once upon a time there were Nitros, flybars and frequency pins...

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07-11-2008 02:42 PM  9 years agoPost 2
GScott

rrElite Veteran

Lewis Center, OH

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The dampers are just o-rings. Have you tried to source some harder o-rings? I picked up a used kit and it came with an entire bag of o-rings that look to be stiffer/harder than the originals. As far as KBB I personally wouldn't put them on my heli. I have seen 2 local pilots flying them on their 600n's and after 20-30 flights you should see the teeter/wobble on the head just sitting on the bench.

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07-11-2008 03:26 PM  9 years agoPost 3
Long Nguyen

rrVeteran

SoCal, US

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I put a piece of heat shrunk tube on the shaft so that the orings are quite stiffer...

Long Nguyen
My videos: http://vimeo.com/longnguyen/videos
Máy bay cắt cỏ!

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07-11-2008 03:28 PM  9 years agoPost 4
GScott

rrElite Veteran

Lewis Center, OH

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Long,

Where did you get the o-rings that came with the heli I got? Are they the same as the stock ones?

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07-11-2008 03:37 PM  9 years agoPost 5
Long Nguyen

rrVeteran

SoCal, US

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No they are not the same ones and here they are:

http://www.mcmaster.com/nav/enter.a...26&pagenum=3390

Long Nguyen
My videos: http://vimeo.com/longnguyen/videos
Máy bay cắt cỏ!

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07-11-2008 03:40 PM  9 years agoPost 6
Darren Lee

rrElite Veteran

Woodstock, GA

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Speaking of K&B, has anyone had good long-term performance from these on the T-Rex 500? Mine were awesome for a few flights but wore out and started "teetering" after only 20 flights or so. I went back to the sleeve set as it seems to stay tight much longer.

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07-11-2008 04:20 PM  9 years agoPost 7
Sam2b

rrElite Veteran

Seattle, WA

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I can't almost guarantee the Protos will out fly you (the pilot) with stock dampers. So I believe reducing the dampening effect is unnecessary unless you have excessive slop from wear-n-tear, and in that case replace with new stock Protos dampers.

_Sam B_
Team MSH USA * Protos Max * Xpert servos * Cyclone Blades * ProgressiveRC * VoltMagic * Ecalc

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07-11-2008 09:37 PM  9 years agoPost 8
OICU812

rrMaster

Edson, Alberta,​Canada

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Ok I never said I would outfly anything, what I am saying is that ths stock ones are wore out in less then 20 flights and am looking for a better alternative, guess I perhaps was not clear on that part... there "is" excessive slop and teetering. Guess I better buy half a dozen sets of these till some better ones come out...

...Once upon a time there were Nitros, flybars and frequency pins...

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07-11-2008 09:39 PM  9 years agoPost 9
Darren Lee

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Woodstock, GA

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I can't almost guarantee
Talk about not clear...

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07-11-2008 10:09 PM  9 years agoPost 10
OICU812

rrMaster

Edson, Alberta,​Canada

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Anywhere else other then Mcmaster for harder orings...?? They do not ship out of USA ...

...Once upon a time there were Nitros, flybars and frequency pins...

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07-23-2008 04:29 AM  9 years agoPost 11
929pilot

rrApprentice

Jackson, OH

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On 90 size helis that use o-ring dampers you add shims between the blade grip and the head block to fine tune the stiffness. Mine seems a little loose too but she flies fine. A factory shim kit wood be nice Heat shrink on the spindle should also work.

Brandon Crosier

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07-25-2008 07:15 AM  9 years agoPost 12
OICU812

rrMaster

Edson, Alberta,​Canada

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Well dampers are still not my tracking issue, but they should be much harder, this head in general is far too soft imho.

...Once upon a time there were Nitros, flybars and frequency pins...

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07-25-2008 12:11 PM  9 years agoPost 13
EricW

rrApprentice

Netherlands

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I'm not doing any hard 3D yet, just sport flying with some fooling around here and there .
But i can imagine you find it to soft for snappy/direct steering.
The grips, and especially the blades in the grips, also flex quite a bit under load, combined with the soft dampers it maybe results in slower transitions between manoeuvres.
I'd rather see the blades not moving up and down at all in the grips, it's a waste of blade energy and doesn't improve tracking, maybe smaller boltholes with less sideway play would be better.
Or some alu grips..

Eric

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