Synergy 90 ARF
 

You should have moved the engine mount over to allow for the offset thrust.....................

thanks propbuster
 

I'm well aware of the right and down thrust.

I did exactly what the instruction told: Glue the two wooden plates together (with the holes perfectly equal) and glue it on the firewall with the thinnest point under left (plane seen from the front).

My engines has the down and right thrust, but it isn't enough to make a parallel alignment with cowl and spinner back plate.

I'm just wondering if my thrust is correct...???

Pieter...

Synergy 90 ARF
 

Yes I noticed this discrepancy too. The side thrust depends on the prop and rpm - my YS110 is turning a 16x8 at a little over 9k and in fact it needed maybe 1degree more side thrust than the supplied wedges provide, more in line with that given by the cowl front in fact. It is only slightly off so I haven't corrected it yet, this will probably get done over the winter layoff period...

Mine has around 3-4% rudder to aileron mixing and about 3% rudder to elevator mixing, which I am not too concerned with. Now it will ke from horizon to horizon with nothing but rudder at less than 1/4 throttle... Marvelous!

thanks James!
 

I have installed a 'simple' OS 91 FX and haven't made a flight yet, I'll test it with the standard thrust, see what happens.

The genesis-pipe is perfect, over 900 rpm more!


Pieter

Synergy 90 ARF
 

Anybody want to buy a USED Synergy 90 3D...
I don;t like mine and am going to list it For Sale or take it back to the LHS I bought it from...

Taking back to the 2nd hand RC store tomorrow!

Synergy 90 ARF
 

How does the Synergy handle on the low-rates? Does there need to be an in-between setup in reference to CPLR's setup I downloaded from the ZN website?

Here's mine ready for my first flight with it... you can see a few posts up what it looked like a few weeks ago. Been cruisin' the mediterranean so I haven't had much time to work on it.

I'll try it out with an OS 91 FS-p and see what it'll do... if it needs more perhaps an OS 91FX or the new Webra 91?!

PS - If anyone ever needs a replacement canopy, the G-Trick canopy is a perfect fit as you can see in my pics. I painted the inside for effect...

Synergy 90 ARF
 

On low rates the Synergy is a fantastic 90 size pattern ship. Use Christophe's low rates as a start point and move them up or down to suit your flying style.

SAPropbuster - what is wrong with your Synergy? If it is working like it should I can see no reason why anyone should dislike it unless you are into vintage submarines ;-) presumably you enjoy aerobatics or you wouldn't be here?

Seriously though. I'd be interested to know what your issues are with this plane.

Synergy 90 ARF
 

:confused: Interesting change of opinion... :confused:

What's the matter?

Synergy 90 ARF
 

WEEEELLLL, (The PLANE was 2nd hand, as in used, bought/flown/sold by another flyer before me )
This is a very pretty flying plane and attracts attention when in the air or on the ground but there is SOMETHING wrong with it.. when I slow it down for landing, one wing flys low. Like a heavy wing tip? Twist in the panel? At HIGH speed, ie thru the manouvers, everything is OK...except I have added a bunch of rudder trim so it tracks correctly in loops.... You give too much Elevator & it SNAPS worse than a Cap 232... That's 'prolly one reason it pancaked on the runway earlier....I dunno, I don't have time to mess with it...really. I kinda bought it on a fluke. $800 plane I bought for $300, put another $600 in it with Digitals, Genysis Muffler & Engine... I guess I expected more... . I am not REALLY into Pattern Planes......Keeping the Digitals & Engine for a P47 kit to build and I'll see if I can modify the cowl area for the Genysis...so all is not wasted...

I just don;t have the patients to correct & trim it out right now..too many other pans in the fire, so to speak..

Synergy 90 ARF
 

I totally agree...theres something wrong with the basic design.

It snaps on elevator and gave me an uneasy feel. (Before a radio failiure finally killed it)

Synergy 90 ARF
 

I am buying a Synergy 90. I do not see any discussion on how good the plane flys I see some about poor flights and problems. Anyone having a good time flying the 90 ? Lets hear the good, bad and the ugly.


Chris

Synergy 90 ARF
 

Bob, Arnie

did you brace the elevator?

rgds
Alvin

Synergy 90 ARF
 

i have been flying mine now for a good 4 months which has seen in the region off 30 to 40 flights,ive no problem at all with snaping on elevator,i put full ele on and it parachutes down,i must admit i dont think its an out and out 3d aswell as pattern but it will do nearly all the manouvers,my elevator movement is near on the 90 degrees movement. i do like this plane though and i know some who dont,but its cool for freestyling which i like the most.

Synergy 90 ARF
 

If it snaps on the elevator, have you tried more movement? A friend of mine has one, and he (by the way hes a great pilot, very capable of flying it!) reckons full rate elevator is a very hard time. His CG is still nearly an inch too far forward, but on full rate i've seen the parachute this model does, and to be honest a spitfire could do it better. I told him to use more elevator movement to get the nose higher, and completely stall it, but unfortunately its kind of on the max at about 45 deg? possibly a little less. The problem is he says the elevator is extremely sensitive, so it will require bucket loads of expo, which he didnt want to do.

regarding Christophes rates: apparently his low rates feel dead, and the high rate elevator is uncontrollable with the cg forward. That's all I know!

Synergy 90 ARF
 

I can't use full 3D elevator travel except when already stalled, if I try a square loop or a wall or parachute it flicks out immediately. I can't do a simple square loop. In the harrier it oscillates rapidly from side to side like a quick pendulum as each alternate tip stalls. It is lovely to fly in pattern mode but I am not the slightest bit impressed in 3D mode.

I got elevator flutter in the dive out of a reversal, it snapped both sides of the tailplane completely, and one elevator at the junction with the aerodynamic balance. Only the covering held it together to let me land it. I was disturbed by how very little balsa there is inside, and the tiny piece of balsa at the leading edge of the elevator where it has the high stress point of the start of the aerodynamic balance.

Harry

Synergy 90 ARF
 

it sounds like cg problems here,try a further back cg and it should be ok,as for the the ele flutter sounds like weak links,have you got the tailplane braced?i must admit when i first played around with the parachute manouver the wings did rock slightly but a small amount off throttle brings the nose up slightly and smooths it out,it does do it better inverted.

Synergy 90 ARF
 

I threw the tailplane away and made a new one and elevators from solid 1/2 inch sheet with some lightening holes. I did have some lead at the tail to get the CG back to 140 from the t/e, the extra weight of the new tail allowed the lead to come off but I did that by calculating moments and weights, I have not formally rebalanced it so I will double check. Would the cg position have any effect on it flicking out of high AoA stuff like square loops though? I can't see the link there.

H

Synergy 90 ARF
 

i think thats were the expo comes in i have 70 percent on my ele but if you dont have enough forward speed for say a square loop it will sqew out,i must admit it did happen to me a couple off times but ive got used to the little faults with setup aswell,i cant understand the tip stall though?strange one that cos mine is really stable.

Synergy 90 ARF
 

To get all this elevator travel... where did you mount your rudder control horns? With mine, the elevator intereferes with the rudder clevis. I'm using Robart control horns (the ones with the ball inside them) and Du-bro's new 4-40 clevis, the black nylon one with the locking mechanism built in.

Synergy 90 ARF
 

>Bob, Arnie
>did you brace the elevator?
>_________________
>Alvin Braeckman

The previous owner did AFTER the HStab broke on one side.

>If it snaps on the elevator, have you tried more movement? >__________________
>Nathan Farrell-Jones ... RC World Display Team

OH yeah, more elevator is more snap!!!

>To get all this elevator travel... where did you mount your
>rudder control horns? - swill

I had to cut a notch off the elevator to clear the pull-pull and raise the horns a tad to help clear the elevator... The horns put on mine by the previous owner were too small...I got flutter very easily, too. The LE of the Elevator IS very soft and flexes right at the counter balance...it even fractured so I had to open the elevator up and put some gussets in there...

Synergy 90 ARF
 

I initially had to accept less than full elevator travel. After the tail and elevators snapped, I made the new elevators with a cut-out to clear the rudder linkage.

Harry

Synergy 90 ARF
 

i mounted the rudder horns hi up on rudder as per christophs.

Synergy 90 ARF
 

Hit my first rolling loop yesterday, using only rudder to clime and pull out.

Kris

RE: Synergy 90 ARF
 

Has anyone tried the saito100 in the syn90? i have a choice between os91fx and saito 100, i feel the saito is the better choice but i am surprised i cant find a review, anyone help?

RE: Synergy 90 ARF
 

Hello,

I still working on my Synergy 90 3D with a OS91Fx and a Genesis pipe.

This plane is my first plane with a pipe and I don't know how can I install the Genesis pipe on the fuse (vibrations.....)

Does somebody have a photo or a pics ?

Thanks

DG