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Home✈️Aircraft🚁Helicoptere-BladeOther › How many channels do you really need?
01-15-2006 08:47 AM  13 years ago
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drksky

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Bloomington, Illinois

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How many channels do you really need?
I know the Blade uses a 6-channel radio, but why would you need any more to fly a heli? 1 channel for throttle and 4 for servos (with a belt-drive tail). Why would you need 9 or 14(!) channels?

What would be the least number of channels you could get away with and still fly 90% of the heli models out there?
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01-15-2006 02:40 PM  13 years ago
BlakeMcBrayer

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Georgetown, Ky

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You don't need as many channels on the electrics (for the most part) as you do nitros. I fly a JR 9303 with a 9 channel Rx and use all 9 channels. Here is a break down

1 Throttle
1 Pitch
1 Elevator
1 aileron
1 Rudder
1 Gyro (controls mode and gain)
1 Govenor (on/Off)
1 Govenor (headspeed)

The 9th channel I use to turn my landing lights on and off when I have my night flying gear on.

.
Don't come off the throttle untill you see your GOD!
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01-15-2006 02:56 PM  13 years ago
slider46

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Ocala Florida

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I just bought a Futaba 6 channel radio for flying these small helis. It has everything you need for the micros but you might want to go 9 channel if you plan on building a nitro bird...Tom..... No "D" flying....
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01-15-2006 09:44 PM  13 years ago
drksky

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Bloomington, Illinois

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Apparently I have much to learn.

So let me get this straight, even though on a CCPM heli the pitch is controlled by the three main servos, you still need a channel for the pitch?

And just what the heck are governors for, anyway?

I'd like to eventually try a nitro heli. So I'm guess that if I get a Trex in the spring, I should probably go for the 9C.

Are there any sites that have more information about how helis are put together, how they work and how they are set up? I love these little flying disks of death, but I am having trouble finding good information beyond the basics, besides trying to disseminate information from posts.

Thanks
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01-15-2006 11:43 PM  13 years ago
biggster

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Harrisburg, Pennsylvania, USA

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ok....for starters, on a ccpm machine , you don't (NEED) any more then 5 channels

1-throttle/or speed control if electric
2-aileron/left
3-elevator
4-aileron/right
5-rudder/tail

thats 5 servo's

now, since i have yet to see a 5 channel heli radio out there, you need a 6 channel heli radio to fly
could you find other uses for more channels?....yes...but you don't (NEED) them....

on a standard machine you also need a 6 channel radio, but you need a 6th servo

1-throttle
2-aileron-left
3-aileron-right
4-elevator
5-pitch
6-rudder

good luck
Fly the blades off it !!
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01-16-2006 02:54 PM  13 years ago
bwarkent

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Houston Tx

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No more than 5 channels are needed unless you are going to use a gyro with remote gain(6 channels). The reason it is advisable to go with the 9C is for all the other features. 5 point pitch curve, 5 point throttle curve, etc. A good radio is a definite must have!
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01-16-2006 03:03 PM  13 years ago
Gary Hoorn

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Annapolis Maryland USA

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biggster,
I read your post over a couple of time trying to figure out just what you were trying to say about the number of servos required for Heli flying. All of my Helis have 4 servos for either mCCPM or eCCPM. Since I use Futaba radios my channel alignment on most of them is:

channel 1 aileron
channel 2 elevator
channel 3 throttle or speed control
channel 4 rudder
channel 5 gyro gain
channel 6 pitch

Using a gyro like the Futaba 240 does not require a channel for gain. Nitros with governor require 1 or 2 more channels depending on the setup.

Gary
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01-16-2006 04:22 PM  13 years ago
Martin_gsxr

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Toronto

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Channels and servos
Gary Hoorn, you`re right about the channels but we only have 3 servos

on fix-pitch tail helicos...

4 servos is if you have a collective pitch tail helico with belt-

drive or drive-shaft...

And for the others, I don`t know what you mean by servo left-aileron

and servo right-aileron???

There is only one servo for the aileron...
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01-17-2006 09:53 PM  13 years ago
drksky

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Bloomington, Illinois

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I'm still waiting to hear what the heck governor modes are for on nitro helis.

Anyway, as far as features on the 9C, it seems like the 7C is very similar in terms of heli functions (curves, etc) and doesn't put QUITE as big a dent in the wallet. I'm just wonder at this point which way would be the best to go. The Blade is my first heli and while frustrating at times, I'm enjoying the challenge very much, although i still suck. I'm thinking about picking up a Trex when my tax return comes in, but I'm wondering if maybe I'm rushing a little bit.

As far as radios go, I realize that I should get the best radio that I can afford, but I'm still trying to figure out if a 7-channel would be enough or if I should suck it up and go for the 9-channel. I'm also a little confused by Futaba's model numbers. On the 9C (or 7C) for that matter, are all available models capable of heli programming, or just the ones with H in the number? i.e. 9CAPS vs. 9CHPS. Biggest thing that bugs me about the Futaba's (as listed in Tower's catalog anyway) is that you don't have any choice to by the Tx only. All the models available come with 4 servos which I may or may not need.

Long question short (once again): Are 7 channels enough to keep me going for a while even if I decide to build a nitro heli? Right now, I'm not concerned with 3D stuff, I'm having trouble enough hovering.

Man, I hate winter. I need to get outside so I have more space. Of course with spring comes the winds....etc., etc....

Thanks
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01-17-2006 09:59 PM  13 years ago
z11355

rrMaster

New England

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short answer...... 7 will be fine.

all Futaba TXs can do helicopters.

the difference between A and H is that...

some switches are in slightly different places
the throttle on the A (aircraft) has detents
often the servos are different

try rchover.com or servocity.com for just the raw transmitter.
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01-17-2006 11:10 PM  13 years ago
BlakeMcBrayer

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Georgetown, Ky

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Yes, you can fly nitros on 7 channels just fine. If you REALLY think you are going to stick with thih hobby and can afford it, go for the 9 channel. It will be less cost to buy a 9 channel now versus buying a 7 channel now and then needing to buy a bigger radio later. Still the 7 channel can carry you well into 3D flight.

As for radio differences, the "H" is a heli radio. "H"'s have some different switch positions as well with a smooth collective stick rather than the ratchet style. Your Blade transmitter has thr ratcet style.

GOVENORS:

These are throttle control devices that sense main rotor speed and adjust the throttle to maintain a constant headspeed reguardless of the loading (how much pitch one ask for). In short, it "goverens" headspeed to a pre determined speed.

.
Don't come off the throttle untill you see your GOD!
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01-18-2006 01:41 AM  13 years ago
Cameron

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St. Johns, Florida

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I bought the 9CAPS last week to use with my planes and i figured when i get a nitro heli i can use it with that too. I just gotta figure out how to program my CP on it. I believe that its a good investment if you have to money to buy something like it so you dont have to go back out and buy a new radio. Just my 2 cents
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01-18-2006 01:53 AM  13 years ago
biggster

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Harrisburg, Pennsylvania, USA

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Martin_gsxr
On a CCPM machine there are 3 servo's that control the swashplate..

1-aileron left
2-aileron right
3-elevator

they all work together to move the swashplate up and down for pitch control....the aileron left and right work together to tilt the swash left and right....and the elevator ....you guessed it...tilts the swash for and aft
Fly the blades off it !!
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01-18-2006 01:59 AM  13 years ago
rand1960

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Colorado

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HBOShogun 3DX SE Shogun V2 Blade cp T-REX XL Raptor 30V2
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01-18-2006 02:28 AM  13 years ago
slider46

rrProfessor

Ocala Florida

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I saw it posted somewhere that sevocity has the 9c on sale for 330., I don't know what is included but it sounds promising....Tom..... No "D" flying....
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01-18-2006 05:34 PM  13 years ago
stealth916

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Rocklin, CA

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Servocity.com is a great place for Futaba deals.

9C has the advantage of MODULE BASED CRYSTAL - and can also use THE RF SYNTHESIZER MODULE. The 7C cannot.


As for extra channels on your heli:

Gary already mentioned remote gain. Off the top of my head there's also Retract Gear (ala Bell 222), Nav Lights, Landing Lights, Camera Shutter activation.


My advice is to get the most radio you can afford, if you plan to be in this hobby long. You will only buy it ONE TIME.

I fly over 40 models on my Futaba 9CHPS.
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01-18-2006 07:30 PM  13 years ago
drksky

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Bloomington, Illinois

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I'm definately leaning towards the 9C now that I saw the prices at Servocity. I think $349 for the 9C with the synth module.

Are there any particular crystals that you need to use with the synth module? I'm assuming that it will work with any (Futaba or similar shift) receiver and not only with the synth receivers.

Now I just wish I hadn't bought my 6EXAS when I started flying planes again earlier this year. I had no idea of the inroads that had been made with helis, particularly electric. When I picked up planes again after a long absence, I considered helis out of my range.
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01-18-2006 07:33 PM  13 years ago
stealth916

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Rocklin, CA

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It will work with any Futaba shift Rx. Either Single Conversion or Dual conversion crystals, as approriate for the brand of Rx.

The Brand of Rx you use will determine which crystal you need - not the Tx. The Tx with synth acts like any other Tx. It has a dial on the back of the Tx which you use to set the Tx channel. You do not have to synch it with the Rx. A $12 GWS Rx will work fine

I also fly the Futaba 148PCM Rx in my Trex. Interestingly enough, the 148PCM Rx uses the SAME crystal as the Blade 4-in-1, that being a Futaba type 'Short' single conversion. I use many types of Rx and Rx crystals against my 9C. As long as it is Futaba shift and the crystal is appropriate for the Rx, you are good to go.


The only thing you have to get used to is flying your planes without a ratcheting throttle It was an easy adjustment for me, and now I don't even think about it. I think I can do better 3D with my foamie bipes with the no ratchet throttle. I don't know if I would want a ratchet if I was a bonified 3D plank pilot (which I'm not).
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01-18-2006 08:35 PM  13 years ago
drksky

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Bloomington, Illinois

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The only choice on the synth module being either high band or low band. Are there really any advantages of using one over the other, or is it just some arbitrary split in the radio band?


I've already converted my 6EXAS to a smooth throttle because I'm using it to fly my Mini Dragonfly. I just couldn't stand that ugly blue thing that came with it. Plus I can use the dual rates and exponentials.
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