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Synergy R/C Synergy N5 N7 N9

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Synergy N5c
N5c Head mod.
RcTintin

Heliman

Gloucester England

I was never to happy with the head block being perched at the top of the main mast, with the Jesus bolt through the first hole on my N5. There was a fair bit of movement that you had to try to stop by squeezing the block onto the mast with one M3 bolt and nylock.

So, when I got my N5c, I decided after it was mainened and was flying well I would change the head block position and see how it felt. I bought some turn buckles from Midlands which are around 16mm shorter than standard, and then installed the head in the top hole. the head now mounts 16mm lower, so I had to reduce the length of the pitch rods from the arms to the swash. This was a bit of trial and error untill I felt the swash would sit at the right level for +-12deg, and with full cyclic and pitch, the swash is just away from the top bearing support, and the swash driver above it.

The results are a much tighter fitting head on the main shaft, and also the heli rolls quicker and tighter. There is still bags of room between the blades and the boom, so no fear of a boom strike.

11-28-2012 Over year old.
Michaelm0268

Senior Heliman

Louisiana

Looks great! Thanks for sharing.

11-28-2012 Over year old.
John Krebs

Veteran

Pittsburgh, PA

One of the guys I fly with moved the arms from seprate base to the head block by bolting the arm to the head block using the hole that the clamping bolts are in. He placed a steel washer between the arm and the head block. This eliminated the seperate base and two bolts leaving him plenty of room for the swash.

John

11-28-2012 Over year old.
HOMEPAGE  
Rymps

Key Veteran

Indianapolis

That is the beauty of this head design. I run my head in the middle hole. I have not tried the bottom hole yet.

I am running the head in the lowest position on my E7. You do need new push rods. Easy to find the Ti rods these days.

11-28-2012 Over year old.
Zaneman007

Elite Veteran

Texas - USA

Length

What length is the length of the turnbuckles for the lower position?

Old Guys Rule!

11-28-2012 Over year old.
mylee

Veteran

Rochester, UK

When I converted my FB N5 to FBL I did the same.

11-29-2012 Over year old.
RcTintin

Heliman

Gloucester England

On the bottom links, I have 18mm of turnbuckle showing between the plastic links.

11-30-2012 Over year old.
Todd Dudek

Heliman

Mars Pa

You can also do this.
Parts needed are two Thunder Tiger 50 motor mount steel tapered washers (PV0107) and two 25mmX3mm bolts.Tapered washers go between the head block and arm/bearing.

01-03-2013 Over year old.
RcTintin

Heliman

Gloucester England

Now that I like!!

Can the 3mm bolts be tightened enough this way, as they are the pinch bolts for the head block? If they do fully tighten up, this is a great way of getting zero phase and a very neat design.

Nice one, thanks for sharing.

01-03-2013 Over year old.
Todd Dudek

Heliman

Mars Pa

Yes, The 3mm bolts can be tightened down with the use of the steel tapered washers. I had to grind the end of the main shaft to get the head block down.

I will get more pics tonight and post them.

01-03-2013 Over year old.
RcTintin

Heliman

Gloucester England

Thanks for the part number, but it's a whole engine mount kit.

Looking at my spare head, I can machine 2 spacers that can fit into the holes flush with the outer edge, and then bolt the swash followers to that.

01-03-2013 Over year old.
jmiceli11

Senior Heliman

Erie, PA, USA

It's about time you remember the part number!

01-04-2013 Over year old.
John Krebs

Veteran

Pittsburgh, PA

He didn't need the part number. He got them from me! LOL

01-04-2013 Over year old.
HOMEPAGE  
Todd Dudek

Heliman

Mars Pa

Yes,the p/n was for the mount with hardware,I could not find the p/n for just the washers.Thanks JK....
I forgot there was one other bearing spacer washer I used.

01-04-2013 Over year old.
RcTintin

Heliman

Gloucester England

Great, thanks for the close up pics.

I was wondering if the tapered washer could be mounted backwards, so it locked centrally in the existing head block hole. This would also bring the arm in slightly to the block. What do you think?

01-04-2013 Over year old.
cgbole

Elite Veteran

Tulsa Ok. U.S.A.

chuck

Synergy / Thunder Power / Esprit Model / Scorpion Power Systems

01-04-2013 Over year old.
jmiceli11

Senior Heliman

Erie, PA, USA

You can get just the Thunder Tiger washers without buying the motor mount. The part number is PV0210.

John

01-11-2013 Over year old.
Tbird

Veteran

Indiana

def going to try something like this!

01-11-2013 Over year old.
Sonic

Heliman

Grand Rapids, MI

Lowered the Head this weekend and mounted the followers directly to the head block and flew it yesterday. I already liked the N5c now I love it. Guys you should definitely try this out.
Todd thanks for sharing

01-13-2013 Over year old.
Tbird

Veteran

Indiana

what links did you use

01-13-2013 Over year old.
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Synergy R/C Synergy N5 N7 N9

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Synergy N5c
N5c Head mod.
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