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Watt's an example of a plane needing 12 channels?

Old 01-18-2009, 02:07 AM
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birdDog
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Question Watt's an example of a plane needing 12 channels?

I am lucky to use four:o
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Old 01-18-2009, 02:21 AM
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Twmaster
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Thing big competition airplanes with separate servos on each elevator half, each aileron and flap, throttle, choke, rudder, landing gear, smoke.....

There's 12.

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Old 01-18-2009, 02:22 AM
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Rick Rotorhead
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Hmmm, twin Ail servos (mixed, not a Y lead) ,Elv ,Rudd, throt, retracts, camera actuator, toffee bomb bay, airbrakes, needle valve adjust if Nitro powered, tow hitch release (for glider tug work), separate inboard flaps = 12

There ya go. I bet you could add some more with a bit of thinking.
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Old 01-18-2009, 05:04 AM
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gyrocptr
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Many of the large planes may use/gang 2 (or more) servos on each aileron, each elevator half, and the rudder. So... 2 x 5, plus throttle, plus retracts (or smoke, or flaps) => 12. Using separate channels, allow matching of center and endpoints for each of the ganged servos. Otherwise, you need a separate set of electronics (e.g. "ServoEqualizer") to synchronize the ganged servos.
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Old 01-18-2009, 05:10 AM
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Rabbitcreekok
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Actually some of the larger scale models use two receivers to be able to handle all the needs. Think four motors like on the B-29 that Mac Hodges flew. And the two receivers provides some protection in case one side fails, the other receiver can still fly the airplane.
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Old 01-18-2009, 05:24 AM
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jooNorway
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One of my sailplanes:

- Left aileron
- Left flaps
- Left airbrake
- Right aileron
- Right flaps
- Right airbrake
- Elevator
- Rudder
- Retract
- Wheel brake
- Tow release
- Vario

Lucky it don`t have double ailerons (like Ventus), water ballast etc... Thus it all can be programmed using my radio, don`t have to parallell anything or rely on servo-programmers!
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Old 01-18-2009, 01:35 PM
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firemanbill
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Originally Posted by Rabbitcreekok View Post
Actually some of the larger scale models use two receivers to be able to handle all the needs. Think four motors like on the B-29 that Mac Hodges flew. And the two receivers provides some protection in case one side fails, the other receiver can still fly the airplane.
Jim, actually the Hodges B-29 uses 7 JR 945 PCM Dual Conversion receivers, 20 Futaba 5301 Servos and 16 separate battery packs. I'd love to see a schematic of it to see how it is all wired up. I do know what each wing is independent and requires no wiring connection to the fuse when attached. So in reality there are three complete separate systems controlling the plane

http://hodgeshobbies.com/index.php?o...7&limitstart=2
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Old 01-18-2009, 01:41 PM
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birdDog
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Originally Posted by firemanbill View Post
Jim, actually the Hodges B-29 uses 7 JR 945 PCM Dual Conversion receivers, 20 Futaba 5301 Servos and 16 separate battery packs. I'd love to see a schematic of it to see how it is all wired up. I do know what each wing is independent and requires no wiring connection to the fuse when attached. So in reality there are three complete separate systems controlling the plane

http://hodgeshobbies.com/index.php?o...7&limitstart=2
Man, That's serious!
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Old 01-18-2009, 01:46 PM
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Originally Posted by birdDog View Post
Man, That's serious!
ain't it though?! It is awesome to see it fly for sure!
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Old 01-22-2009, 02:39 AM
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IFlyTailies
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it was awesome!

[media]http://www.metacafe.com/watch/1012046/giant_b_29_rc_warbird_with_bell_x_1_rocket/[/media]

http://iflytailies.jimdo.com/
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Old 01-22-2009, 05:00 AM
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Xpress..
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Hummm...

Primary 4 functions
Flaps
Retracts
Bomb Drop
Wing folding
Ignition switch
Smoke system
Canopy operaton
Ejector seat
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Old 01-23-2009, 10:18 AM
  #12  
AEAJR
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My planes range from 2 channel to 7 channels in use today, but I have one that could go further. I have a Ventus 2C scale glider that is set-up for aerotow.

Today:

Ailerons - 2
Elevator -1
Rudder - 1
Flaps - 2
Tow release - 1

Yet to be connected:

Spoilers - 2

Future?

Landing Gear - 1

That would take me to 10.

Then I could add a scale canopy that would open and close from a switch - cool factor.

Then I could add some kind of drop - streamers, or a parachute guy or a smoke generator - Crowd Pleaser.

That would be 12.

But I only have a 9 channel radio so I am not in a rush to get beyond 9.
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