ORIGINAL: Mr67Stang
I could not find a nitro trainer called the/a "Ventura" so I do not know what exactly your local builder freind is trying to sell you. You also state that it has a .45 "tiger" motor. I am guessing that is either Super Tiger or Thunder Tiger??? Of the two I prefer Thunder Tiger for reliability and power. Perhaps you could provide some pictures or more detail.
As far as the 50cc Aeroworks Extra 260 is concerned I agree, it is a beutiful plane and I was lucky enough to pick one up used at the end of last summer. I am using a JR 9303 2.4 Ghz transmitter and a 9 channel receiver for mine. The plane calls for the use of 6 servos with the optional use of a 7th for the engines choke valve. So if you do not use that 7th servo you should be able to use your Futaba 7C radio.
I see on the Aeroworks site that it says 8 channel minimum for this plane but it's just not passing the logic test... or I'm not. So if I am missing anything here please speak up.
Ch 1 (Aileron) Plug 1 aileron servo in here
Ch 2 (Elevator) Plug one Elevator Servo in here
Ch 3 (Throtle) Plug the Throttle servo in here
Ch 4 (Rudder) Plug the rudder servo in here
Ch 5 (Landing gear) Plug your battery switch in here
Ch 6 (Flaps) Plug the other aileron servo in here and mix with ailerons for propper function
Ch 7 (Aux 1) Plug the other elevator servo in here and mix with elevator for propper function
You can also use a Y-harness on the Ailerons to and free up the Flap channel for use on a choke servo I would rather operate the choke manually and have the channel mixxing options.
Could be for dual ailerons or dual elevator servos. Haven't seen the manual so just a WAG.
Use ch 5 for choke or eng kill if desired.