I'll give it a shot, as I'm building an Ohio class sub at this time. We'll need the following functions/channels:
1) Engine ahead / reverse
2) Rudders starboard / port
3) Rudders up / down
4) Dive / surface (Water to & from ballast tanks)
and as an option:
5) Missile fireing
6) Torpedo fireing
7) Lights on / off
If you look at Graupner transmitters and receivers, remember that Graupner counts channels differently than everyone else. In their book, the function "engine ahead" & "engine reverse" is two channels...
The way I see it, we'll need at least no. 1 through 4, which is a need for 4 channels. (That'l be 8 in Graupner language) I'm currently looking at transmitter MC10 from Graupner, and receiver C17 also from Graupner. The MC10 can be expanded, and since the dive/surface function is just a push-bottom operation, it should do the trick. I have not testet this yet, and I have not gotten it confirmed as it's quite some time till I'll need it, but it should be close.
For a furter explanation on the R/C needs, please see my site (See link below) about my sub, look under "Remote Control Configuration " and "Engine, Gear, Servos, R/C Etc" for details.
Please talk to your local R/C store before ordering anything. It would be terriable to sit around with a system with too few channels. Good luck with your sub.
Yours Sincerely, Robert Holsting, Denmark
1/81 SSBN Ohio Class scratch builder, more at www.robse.dk
"Never be afraid to try something new; remember that it was amateurs who build Noah's Ark, and professionals who build the Titanic"