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Got Jet Fuel? Turbine Helicopters > Jetcopter SX Radio

ARES 151
Heliman
Location: Florida

What radios are you using for the Jetcopter SX. I have a PCM10X for my jets, and would have liked to get a 10X Heli, but it does not do 4 servo CCPM. I found a site that shows how it can be done with some programming magic, but it seems better to just get a radio that is made for it. It would be ideal if Horizon released the PCM9X at Toledo and that it would do 4 servo CCPM, but I am not holding my breath. Does the Futaba 9CH have this mixing? I could not confirm this on any of their sites. Any other suggestions would also be appreciated.

Thanks,

03-15-2003 Over year old.

Bill Ludwig
Veteran
Location: Tucson, AZ

I'm using the 9Z WC2.

- Bill

03-15-2003 Over year old.

v22chap
Senior Heliman
Location: Howe, Indiana

Bill J
Vario makes a multi bladed gyro that will take care of the 4 servo ccpm problem and also helps make a two blade or multi bladed head setup fly easier.I definitely wouldn't give up my 10 X !!!!

------------------------------------
http://www.sitewaveshosting.com/Mer...oduct_Code=3280

Hope this helps
Larry

Larry C ----------Bergen R/C helicopters

03-15-2003 Over year old.

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ARES 151
Heliman
Location: Florida

Larry,

Thanks for the reply.........that looks interesting and I will check into it. I wonder if there is a way to do some mixes to make the 10X aircraft transmitter work. The savings would pay for a Vario Hughes 500 fuse down the road.

03-15-2003 Over year old.

v22chap
Senior Heliman
Location: Howe, Indiana

Bill J
I would think that mixes to the Aux channels would suffice a 4 servo CCPM and also would not cost more to do ,but I don't know of anyone that has done it.I will check the other boards and if I find some one that has I will forward the thread to you.
And the future fuse would be nicer than a new radio.

Larry

Larry C ----------Bergen R/C helicopters

03-15-2003 Over year old.

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v22chap
Senior Heliman
Location: Howe, Indiana

Bill J
Here is a copy of a topic on the JR 4 servo problem
Ok, Here is how I do it on my PCM SXII..I'll type slow for all you Footaba guys out there who arn't up to a programming challenge

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

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

Yes, it does work quite well. If in doubt, see the Top Gun Photos of my 47 in flight!
I will admit that we SHOULD NOT have to do this, we should have 90 degree CCPM on a radio the price of a PCM 10.

Yes Mongo, You can set the Vario helis up for 3 servo (120 degree) or 4 servo (90 degree) CCPM.

Hey Len Sabato! Now that we have the 8411 situation calmed down, you want to ask JR to put 90 degree CCPM on the PCM 10X (Please!)

here is the full threads url as found on this board :
http://runryder.com/showtopic.htm?s...ght=4servo+CCPM

Hope this helps
Larry

Larry C ----------Bergen R/C helicopters

03-15-2003 Over year old.

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ARES 151
Heliman
Location: Florida

Larry,

Thanks for your help. Unless I am missing something here, it seems my aircraft 10x may work. I need to set aside a night to play with this and see what happens.

Thanks.......

03-15-2003 Over year old.

v22chap
Senior Heliman
Location: Howe, Indiana

Bill J
Yes ,that is what I read into that also.If the sxll can do it the 10X should be able to also.Then you will have enough for the scale fuse down the road.
Let me know how it works as I may need it down the road ,as I am looking hard at the jetcats too plus I am into scale and may run in to it in a scale application soon.

Email me at : v22chap@hotmail.com
so I don't miss the results.
Larry

Larry C ----------Bergen R/C helicopters

03-15-2003 Over year old.

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AGRAV8
rrProfessor
Location: Mosquito Coast......Houston Texas

addressing the original question:

Futaba 9CH radios......

03-15-2003 Over year old.

v22chap
Senior Heliman
Location: Howe, Indiana

Bill J
I just reread your original post again and I will be going to Toledo expo and will try to make a point in looking into the 9X release date.I also noticed you have an airplane 10 X and was going to buy a Heli version .I would stay with the JR radios since you already have one.I work with the Futabas that are at my field and just go crazy trying to get where I need to be.Maybe the 9Z is different but why learn two radios when you already know and can move around in the JR programing good.
Curtiss Youngblood is usually at Toledo expo and I would also be able to ask him about the mixing if you have trouble.He is quite helpful in that area,as he helped me with some mixing that I did on my V-22 Osprey.Might even get by using the airplane version by just doing a little more mixing.

Larry

Larry C ----------Bergen R/C helicopters

03-15-2003 Over year old.

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DStJohn
Senior Heliman
Location: Ft. Collins, CO

PCM 10 WILL do 4 Servo CCPM

Ares 151
That is my post that Larry copied for you. I have my Jetcopter set up on my 10X with 4 servo CCPM just like I described in the post. It works quite well and should be able to work with the airplane 10X. Actually an airplane radio should work fine because you take the throttle to full and fly the collective on the left stick. You should be OK, if you need help, let me know...

Dan St.John
East Coast Scale Helicopters Vario Field Rep

03-15-2003 Over year old.

v22chap
Senior Heliman
Location: Howe, Indiana

Quote
Actually an airplane radio should work fine because you take the throttle to full and fly the collective on the left stick. You should be OK

Thanks DStJohn, I was thinking about the throttle while I was flying today and thought the throttle was controlled by the ECU on the turbines.
So if he would mix throttle into another Aux. channel and do it in mix 58 he would then have a multi-point adjustable pitch curve just like a heli radio would and he don't need all the gyro mixes and tail stuff or ail.or elevator mixes , if he is going to be using a good piezo gyro.
Larry

Larry C ----------Bergen R/C helicopters

03-15-2003 Over year old.

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ARES 151
Heliman
Location: Florida

I really appreciate everyone's input on this issue. One of these nights I'm going to drag out a flight pack and try your setup Dan. I't seemed like the aircraft version should work as I don't need the collective/throttle mix. Thanks for the offer to help as I'm sure I will have more questions as time goes on.

03-15-2003 Over year old.

Lee Conner
Heliman
Location: Sinking Spring PA

The Futaba 9ZHP has 4 servo CCPM. S-4 Type.

http://www.futaba-rc.com/manuals/9z-manual-a.pdf
Page 56

03-15-2003 Over year old.

imback
Senior Heliman
Location: las vegas, nevada

ARES 151

i understand that you are presently flying a 10x and may not want to "move backwards." however, the 8103 does 4 servo ccpm and i believe it has everything you will need for the jetcopter.

the only apparent downside is buying a radio that is theoretically outdated. the question is being able to fly now, versus waiting.

i purchased a used 8103 on runryder shortly before the 9x was posted. the price was still very good and worth having until the 9x is out.

just someone else's $.02

nels

just do it!

03-16-2003 Over year old.

optikaman
Veteran
Location: EnglishTown N.J.

9chp

ARES 151
All of the Futaba 9c series radios have 4 ch ccpm.
CH1 Aileron
CH2 Elevator
CH6 Aileron2 / collective
CH8 Elevator2
i purchased the 9CAP because it is 100.00 less then the 9CHP and i did not want to use the supplied servos or battery pack, i installed 9250 servos and a 1800 reciever pack.

I flew my first two flights today and i still have a smile on my face and can still smell the burnt K1, The only bad point to the JetcopterSX is the supplied thrust dirverter/ pipe. there was still to much thrust hitting the tail blades and the heli did not want to sit horiziontal in the air. i have orderd another exhaust dirverter that should resolve this.

Alan....

03-16-2003 Over year old.

Twin II
Heliman
Location: University Park, IL

4 Servo 90 Degree

There's a company called Quick UK who sells a electronic CCP mixer which allows one to use 3 or 4 servo 90 or 120 CCPM with a non-capatible controller. I think it sells for $53 USD. Here's the link. http://www.quickuk.co.uk/acatalog/r_index.htm

03-20-2003 Over year old.

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Jetcat USA
Heliman
Location: Van Nuys, CA

HotCat

I have the 10X working fine for the JetCopter SX but what happens when you offset the swash 45 degrees with a 4 servo CCPM??? This is how the HotCat works! The JetCat factory uses the Graupner MC24 and Robbie 28 since they have programming for it. Can JR or Futaba be setup for this?

JetCat USA

03-20-2003 Over year old.

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Phil Cole
Veteran
Location: Redwood City CA

Bob,

If you are using the Robbe system 88 style swashplate setup, the 45 degree offset does not affect how you use the radio.

Just set up your CCPM the way every one else does it. The swash will be 45 degrees off, but the actual blades will do the right thing.

Test it by setting the flybar in line with the boom. Roll cyclic input will tilt the paddles, but fore-aft cyclic won't. If you see a little bit of tilt in the latter case, the pins driving the pitch compensator aren't straight.

03-20-2003 Over year old.

ARES 151
Heliman
Location: Florida

Thanks for your help everybody: especially Dan and Larry for the programming advice. One night I gathered up your posts, a flight pack and the transmitter. I modified it a little to use with the aircraft radio and it looks like it is going to work well. Essentially, the only difference is that I used channel 1 (throttle) instead of channel 6 (aux 1). Throttle trim does effect position 1 of the pitch curve. I would just leave it in the full down position. It also has an eight-point pitch (ex-throttle) curve, and two different curves can be set for different flight modes. The expos and dual rates appear to work appropriatly. I’m guessing that with more programming using the other multi-point mixes we could get more curves, but I think two will be enough for my purpose.

Thanks again.

03-21-2003 Over year old.

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