Raptor V2 Trimming Problem

[Sul]

Hi All,

One week old owner here. I have a Raptor V2 ARTF and a Sanwa RD8000 CSM180 gyro

The model was trimmed and set-up by an very experienced heli pilot and was to all intents and purposes flying quite well.

On his advice, I set about trying to reduce the slop/slack in the starter adapter which is on top of the spindle/shaft that turns to start the engine (the hex headed thing) - it had about 3-4mm play in it.

To get at it properly, I had to remove the pitch collective, and of course the main arms on which it pivots. I did'nt know until they came out, that they were splined, so I didnt make a note of their position (I know Im now paying for going ARTF). After much messing about and trial and error with the spline positions, I settled on a position that left the swash plate level on right stick centered.

Test flight ok, no particular problems except...

I noticed when the heli got light on the trainers, and I was checking the controls, that when I pulled straight back on the right stick, the heli tried to go back and to the right.

Conversley when I tried pushed forward on the right stick the heli attempted to lean forwards and to the left.

When the heli initially lifts off, it remains fairly still, in that it might sit in it's position for a few seconds with no more than a bit of nose left.

It may always have been this way, and I just didnt pay atttention.

I would appreciate any comments on this.

I have tried many different things to rectify it. Adjusting the trims only makes the heli drift off during hands free flight.

Many thanks and apologies for such a long post

Mark Sullivan

[Raptorite]

Hi Mark,

Welcome to the hobby, and to this site

As a general rule, as long as you can get every mechanical arm on the heli lined up and straight with all the trims in the transmitter centred and the swash level you cant go wrong 8)

With regards to the elevator, which has the splined control arm, with the cradle between the frames level, the arm needs to point straight down. As does the intermediate arm between that and the servo itself.

The aileron setup is pretty similar in that with the servo arm pointing straight across the front of the model (side to side) the rods should all be equal in length, so that the aileron control arms on the side of the collective lever are lined up with each other and equal. The rods from there up to the swash should also be equal and give a nice flat swash angle.

As this is sometimes not the easiest thing to describe, or to read and understand, I have posted two or three pictures in my gallery. Have a look at the "Raptor 30 Cyclic setup" album.

If hope this helps and if you have anymore questions, feel free to ask them here.

Cheers,

Pete.