Is it possible to use channel 9 for a smoke system (slimline or sullivan) and have the throttle contol the rate of pump, and turn it on and off by a switch?

Hi copter7,

Yes, this is done quite routinely on the 9C, please see our FAQ for this radio at

http://www.futaba-rc.com/faq/faq-9c.html

The one you want will be FAQ # 43 in the General category.

I hope you find this information helpful. You can also reach our Futaba support technical team at 217-398-8970, or via fax at 217-398-7721.

Sincerely,
Krysta
Lead Futaba Customer Service and Programming Technician

Hi Guys,
sent this also as a pm in case Futaba deletes it. being a manufacturers forum. Hopefully they will correct the information.
No you cannot use channel 9 as a proportional channel. The mix that Krysta quoted will not be proportional on channel 9, as the instructions even say use channel 8. You can use the mix to make sure the smoke does not activate at low throttle so will it not bog the engine, but to have rate control you need a proportional channel, 1-8 on all futaba 9 channel receivers, channel 9 is only on off.
Good Luck
Paul

That is correct.

Not to mention you need a PCM reciever and PCM enabled in that model to even see the options for channel 9.