RunRyder - JR 10X Jetcopter Setup

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Got Jet Fuel? Turbine Helicopters > JR 10X Jetcopter Setup

wolfdad
Key Veteran
Location: Southern Maryland

Ok everyone, I know this is simple and I am making it more difficult that it has to be, however I am thoroughly confused and, for some, I am sure, very simple reason, I cannot get it to work.

Here's what I am doing for the set-up process:

Function 65 - 1 servo selection. 0/0 in the ail/elev mix, 0/0 in elev/ail mix. Normal, S1, S2 selected.

Function 12 - Aileron, Elevator, Pitch and Aux 2 set to 150% in both directions

Function 68 - High stick set to 75%, low stick set to 25% in normal, S1 and S2

Function 13 - Dual rates set to 50% for aileron and elevator in normal, S1 and S2.

Function 51 - Mixed pitch to aileron 100% in both directions. Selected normal, S1 and S2

Function 52 - Mixed aileron to pitch 100% in both directions. Selected normal, S1 and S2. Trim turned on.

Function 53 - Mixed pitch to elevator 100% in both directions. Selected normal, S1 and S2.

Function 54 - Mixed elevator to Aux 2 100% in both directions. Selected normal, S1 and S2. Trim turned on.

Function 55 - Mixed Pitch to Aux 2 100% in both directions. Selected normal, S1 and S2.

Servos are assigned as follows:
Forward servo - Elevator
Rear servo - Aux 2
Right servo (as I am facing the tail) - Aileron
Left servo (as I am facing the tail) - Aux 1

I also saw one note to reverse Channel 3 (elevator), however that makes matters worse.

Also saw a note to change the sign on the lower 100% in Functio 53 to a negative. That also did not make matters better.

Several questions I have now that I am thoroughly confused are as follow:

1.) Do the signs, i.e. + and - on any of the mixes, other than 53 need to be changed?

2.) Which servos actually need to be reversed?

3.) Do any of the values in Function 65 in single servo mode need to be changed to something other than 0/0?

Oh, and prior to doing any of the set-up all servos have been set at neutral and all angles are 90° with the swash plate level.

Also, does anyone have the actual Vario or air star set-up instructions for the Jetcopter...if they even exist. None came with mine...only a 2003 catalog CD that doesn't tell me squat, but has some cool pictures, high prices and one or two fairly neat videos.

Ladies and gents, you can help a desparate helo pilot here. Otherwise I am headed for the funny farm and the Jetcopter will be collecting dust.

wolfdad sends (urgently).....

"There are those who have...and, those who will" IRCHA #2117, AMA #70068, Turbine Waiver #105

02-28-2004 Over year old.

HOMEPAGE

Phil Cole
Veteran
Location: Redwood City CA

I don't know anything about 10Xs, so I can't comment on all those function number settings. Amongst others, I know Dan St John has it figured out. I seem to remember him posting the setting here a while ago. A search for all his posts should turn it up.

You should be able to figure out all the settings by imagining how the servos are going to move the swash. To avoid stressing things too much, just hook up three servos to the swash to start with. That way, you will see what the swash is doing, but won't be stressing things if a servo is going the wrong way.

As for setup, I use +14° to -9° on collective, and all I could get for cyclic throw. You'll need the long mast setup that Josef sells to get this collective range. With the standard Jetcat mast, I set -5° on the low end, to be sure I could restore headspeed in an auto situtation. The high end was all I could get.

Use the outermost holes on the bell mixer arms to maximise the collective range.

I don't know what my cyclic throws is. I think I orginally set it to 6° but the roll-rate was way to slow (maybe two seconds for a 360° roll).

I used Futaba 9204 servos, with the four-armed horns. The pushrods are on the outermost holes on the servo arms. One reason for using the plastic arms is that you'll never get the four servos to operate without binding somewhere in their travel. I set things so they didn't bind when they were near the hovering position. You probably won't see the arms bend, but you can easily see the errors if you pop one link off the swash and try various cycle setting at the extremes of the collective range.

I found that the arms on the front and back servos can hit the main gear at full negative and with a lot of fore or aft cyclic input. I used a mix from elevator to collective to keep the arms off the main gear. This is really only a worry if you are using full negative and lots of cyclic.

03-01-2004 Over year old.

DStJohn
Senior Heliman
Location: Ft. Collins, CO

4 Servo CCPM Setup

Here is the setup I use on my 10X with my Jetcopter:

Mix 51 Elev(M) - Aux2(S) Trim ON, Norm, Offset 0, (-100), (-100)
Mix 52 Aile (M) - Pit (S) Trim ON, Norm, Offset 0, (-100), (-100),
Mix 55 Pit (M) - Elev (S) In 0=Out 100, In 100 = Out (-100), Linear
Mix 56 Pit (M) - Aux2(S) In 0=Out 100, In 100 = Out (-100), Linear
Mix 57 Pit (M) - Aile (S) In 0=Out 100, In 100 = Out (-100), Linear

Of course all of these mixes are active in all flight modes (wouldn't that be exciting to switch this off in flight!)

There have been other threads where other folks set the PCM 10 up slightly different, but it is an offshoot of my setup.

I use this same setup on my Bell 47 on my PCM10SXII radio, it works on it also.

Let me know if you have any questions

Dan St.John
East Coast Scale Helicopters Vario Field Rep

03-02-2004 Over year old.

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Got Jet Fuel? Turbine Helicopters > JR 10X Jetcopter Setup

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