Stick2000

Hi guys,

I would like to get some info on using 2 recievers for 1/3 scale aircraft. Having
lost my 1/3 scale H9 Cap due to reciever xtal failure, I'm thinking of having a
back-up reciever in my next 1/3 scale plane. Any help would be much appriciated.

Thanks,
Stick2K

JOHNS3D

My Feedback: (5)

please tell us:

What radio do you use?.
Acutally what rx do you have?.

Stick2000

I use a JR 10X with a 649S PCM reciever.

Stick2K

Zeeb

My Feedback: (41)

It was a pretty common setup when the models started getting bigger and needing more servo slots as well as two rx busses for more power. You still see that setup used on some IMAC birds for various reasons.

Essentially you just install two rx's with two separate batteries and switchs, then setup the model with one rx controlling the right side of the model and one controlling the left side. Which controls the rudder and which controls the throttle is the subject of some debate and actually a matter of personal preference. There are also some considerations that need to be given to rx placement and the antenna routing on the 72MHz radios and spacing. It is not uncommon for that rx setup to actually have a reduced effective range, but it's not usually enough to affect model use unless it was a very poor install.

Stick2000

I will be using the 2.4 gig recievers so antenna spacing should not be a problem,
concidering the short antennas of these systems. But I would like to know the
hook up for right and left side of plane as to which servos go to which channels
to keep plane balanced if one reciever fails.

Stick2K

k12rc

every thing on left to left rec same for right side run some thing like swb with two rudder servos one plugs left rec one right
the thro is your choise either rec

Rafael23cc

My Feedback: (6)

I will follow this "recipe" when I build my 47% Velox:

The right aileron an the left elevator will go to receiver no 1 Aileron and elevator channel respectively
The left aileron and the right elevator will go to receiver no 2 Aileron and elevator channel respectively

Most likely will use a matchbox or similar device because the plane required 3 aileron servos per wing half, and 2 elevator servos per elevator half.

The throttle channel will go to one receiver, and the throttle kill switch wll go to the opposite receiver.

The rudder will most likely be a multi-servo affair, and I will probably get a non-binding tray, so in the event of a servo failure, the complete system does not bind. That way, I can plug in some servos to one receiver and the rest to the other receiver.

By cross-controlling the flying surfaces, I try to diminish rolling tendencies of the aircraft, if one of the receivers happens to fail.

Now that takes care of th critical flight controls. Anything else (smoke, lighs, ect) gets connected to any available channels on the receivers.

Rafael

Stick2000

Rafael,

Some time ago I read about your recipe (crossed connected controls) but
couldn't remember the setup. Thanks for the reminder, I'll be using a
similar type of setup.

Thanks everyone for your input, it's been very helpful.

Stick2K