Carbon Cub S+ question: Is there any way in hell to get flaps without a 7-channel transmitter?

[Douglas]

We are discussing this topic in another thread, but I am posting a new thread in hopes of attracting an expert on the Carbon Cub S+ with the Spektrum 6e six-channel transmitter.

Hobbyzone's manual says you can't implement the flap option on this plane without a 7-channel transmitter. But this plane has GPS, Safety, etc. Since I don't use the GPS features, I was wondering if the GPS or anything else could be disconnected that would allow me to have flaps. I'd rather have flaps than the GPS/Safety features.

 

[JasonK]

Do you have the wiring diagram for it? It might be possible if you swap out the receiver/flight controller that came with it to something else. How many changes are you looking at making?

 

[JasonK]

Reading the manual -> I see the following controls for the build in reciever/flight controller -> 4 channel + flight mode + HP/AL button. so the included controller is using all 6 channels. If you swap out your receiver, you should be able to get 4 channels + flaps inside your 6 channels fine.

 

[Douglas]

Reading the manual -> I see the following controls for the build in reciever/flight controller -> 4 channel + flight mode + HP/AL button. so the included controller is using all 6 channels. If you swap out your receiver, you should be able to get 4 channels + flaps inside your 6 channels fine.

I know nothing about RC planes, so you'll need to clarify. Are you saying that my receiver (the thing into which I plug in the connections to the servos) was built to accept flight mode--and only flight mode--in one slot, and HP/AL--and only HP/AL--in another slot. And therefore I have to remove the six-channel receiver in the plane and replace it with a new six channel receiver? Then I plug in 4 channel + flaps and I'll still have one channel left?

I'm hoping that into that last channel I'll be able to plug in the flight modes, but I'm guessing you are going to tell me that if I want flaps then I'll have to give up both the HP/AL button AND the flight modes.

 

[JasonK]

You got what I was saying correct. However I don't know 100% if that receiver could have the HP/AL functionality disabled or not so that you could 'recover' that channel or if you would have to replace it with a receiver that doesn't have that functionality.

I don't have any receivers with the built in gyros/etc, I do have a flight controller sitting on my desk to be installed, but I can program that to do what ever I with without eating up a bunch of channels.

 

[Douglas]

One more question about flight modes. My plane has beginner, intermediate, and advanced flight modes. Beginner and intermediate won't allow the plane to go inverted, among other things. Advanced means no limitations.

I don't know much about my 6e transmitter, but isn't it possible to program the full functionality of the flight modes into the transmitter, without having that information pre-programmed into the plane's receiver? If so, that means I could get flaps without losing flight modes.

If I have this all correct, can you tell me which receiver would work in that plane with my 6e transmitter? Or should I just call AMain Hobbies (or whatever they are called).

 

[JasonK]

I don't know much about my 6e transmitter, but isn't it possible to program the full functionality of the flight modes into the transmitter, without having that information pre-programmed into the plane's receiver? If so, that means I could get flaps without losing flight modes.

no, the receiver/flight controller has sensors that detect roll rate and attitude and it overrides your inputs to create the angle limit flight modes. You can't get any auto correction or limits on the transmitter, they have to be processed on the aircraft. (so both your beginner and intermediate modes can't be done on the TX - which is why there is a channel consumed sending the mode info to the plane)

Any 6 channel spectrum receiver (at least ones that don't have all the extra features the one in your has) should be able to make this work, however I don't know the exact wiring diagram of your plane, so I can't be 100% sure.

 

[Douglas]

Thanks for all your advice in this thread; I learned a good bit. I've decided to just build the FT Simple Cub and keep my Carbon Cub the way it is.