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HomeAircraftHelicopterSynergy R/CSynergy N9 › Do we still need all the hyper parts to get the N9 to fly right?
02-06-2008 09:07 AM  10 years agoPost 1
TmMugen

rrKey Veteran

Tiny Little Red Dot aka Singapore

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Hi I was told that there had been some minor issues with the N9 initially when it is launched and need some hyper upgrades to fly it right, especially the hyper hub.

Any comments from the recent batches owners.

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02-06-2008 09:16 AM  10 years agoPost 2
colsy

rrElite Veteran

Cambridge, UK

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I'm interested as well, from what i understand you dont really need any, but the Hyper Hub apparently removes many headaches.

Col.

Only Quote From Experience.

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02-06-2008 10:26 AM  10 years agoPost 3
Doug L

rrVeteran

Minnesota

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The stock parts work fine, but the Hyper stuff is definately an improvement. The Hypersizer and Hyperhub will make your life much easier and I'd just consider them in the cost of the kit. The helicopter is amazing as is from there, but if you'd like more I felt the improvements were most apparent in this order: Levers, Grips, Drive. Carl and Jim are great to work with as well. Customer service right in line with Synergy's.

-----------------------------
www.3DRCMN.com

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02-06-2008 11:11 AM  10 years agoPost 4
Crash3D

rrApprentice

Reno, Nevada

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What do the grips improve?

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02-06-2008 11:33 AM  10 years agoPost 5
Long Nguyen

rrVeteran

SoCal, US

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What do the grips improve?
The hypergrips give you more pop during high demanding collective moves such as tictocs and more bling-bling. The stock plastic grips work well.

I got a hypersizer, hypergrips and a hyperhub for my Synergy right now.

I highly recommend the hypersizer to size out the ball links and the hyperhub to not have to use a dial indicator during assembling.

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

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02-06-2008 01:20 PM  10 years agoPost 6
Kinger

rrElite Veteran

Granville, OH

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You may not need a dial indicator for the hub, but it would probably be in your best interest to dial indicate the start shaft that's pressed into the clutch. Even with your hub on perfectly the tip of the start shaft may be out by quite a bit which can cause vibes.

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02-06-2008 03:53 PM  10 years agoPost 7
unruly_heli_nut

rrApprentice

USA

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They need to put an extra radial bearing in the stock tail grips (and they are). One radial bearing per grip on this 90 . This is the biggest weak point on the whole heli.

Without that extra radial bearing to take the side loads, the bolt head is going to eventually shear right off with repeated fatigue stresses. I know, I know, many have flown with the stock tail without incident. You might get lucky, you might not, s'all I'm saying.

I'd have to say that I'm fairly disappointed with the tail design. But the rest of the airframe is fine.

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02-06-2008 04:10 PM  10 years agoPost 8
RotorHead486

rrKey Veteran

England

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Hey Guys,

Just thought i would chime in and let you know of a modification i have been working on and currently testing.

Using a Thrust race upgrade from QuickUK and an extra radial bearing i have modified the tail rotor to use two radial bearings and a single thrust race.

What i have done is replace the original thrust race with a radial bearing which provides more support and a much smoother operating tail than the original and then using the thrust race upgrade kit from QuickUK added to the hub which basically extend's the hub.

This thrust race upgrade was orignally used as an upgrade for the QuickUK CNC Alloy tail rotor assy for the raptor series but the thrust race and hub extension are perfect diameter for the Synergy hub.


Below you can see the hub extension upgrade in place:

Below you can see the complete thrust bearing upgrade in place:

This is basically a simple modification, the only area requiring any work is to relieve the blade grip where the thrust race is going to go as generally tail blade grips have a slight step in them to allow for free rotation of the thrust race, the synergy grips do not have this and this has been one of the contributing factors in the failures of the tail rotor assemblies. What i did was to install a bearing (old one if available) and then using either a file or Dremel which i used with a file tip, file away the area where thr thrust race is going to be. If you install a bearing and allow the tip of the dremel to run on it you will only be relieveing the area that is required be the thrust race and the area for the radial bearing stays tight.

I have not had enough time on the mod'd tail assy yet so only time will tell. But if any of you want to give it a go and let me know how you find it, please feel free.

As Wallace says "I've got patent pending on that!"
Currently in testing but so far it's giving really good results.

Cheers!
Rossco

One Reason For Crashing'Rogue Servo Bent on World Domination'!!
FLP Flight Team

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02-06-2008 04:24 PM  10 years agoPost 9
Long Nguyen

rrVeteran

SoCal, US

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I think the Stratus as well as other MA helis also has one radial bearing in a tail grip. The only thing different is that they use a nut to tighten the grip instead of a screw.

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

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02-06-2008 05:23 PM  10 years agoPost 10
unruly_heli_nut

rrApprentice

USA

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instead of a screw
Yes, you're right to clarify, that is the weak point.

But an extra radial bearing does help in this case.

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02-06-2008 05:34 PM  10 years agoPost 11
unruly_heli_nut

rrApprentice

USA

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they use a nut to tighten the grip
That's a big difference.

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02-06-2008 08:22 PM  10 years agoPost 12
Long Nguyen

rrVeteran

SoCal, US

My Posts: All  Forum  Topic

I really want to try that tail hub design on my Synergy. Actually I did design one but the cost for one piece turned out to be 170 dollars!

Right now, the tail grips on mine are so sloppy and I'm wondering when the new tail hubs will be out!

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

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02-06-2008 11:33 PM  10 years agoPost 13
unruly_heli_nut

rrApprentice

USA

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I opted for the Kasama tail grips. They have dual bearings per grip and seem to do the job.

Or if you're cheap, you can get just the Kasama tail hub, put an extra radial bearing in per grip (the stock tail grips have enough space for one more bearing), and trim a bit off of the stock tail grip arms to move the link balls to the center (the Kasama tail hub is shorter in the center than the stock one). You'll probably need a thin washer between the extra radial bearing and the thrust bearing as well.

Or you can forget this whole mess and just wait for the good folks at Synergy to fix it for good. However long that's going to take.

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02-07-2008 12:41 AM  10 years agoPost 14
Long Nguyen

rrVeteran

SoCal, US

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unruly_heli_nut: I got Kasama tail upgrade right after I bought my synergy but I didn't have good time with it. The grip's gap was narrower than it should be to fit the blades root and most important, I got tail blown out a few times when doing fast backwards and tictocs...I just put the stock ones on with machined washers and high graded screws and they have been working fine...

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

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