i have a aeromarine cyclone, and i am having problems with radio..
got the electronics box wet,, dried it out, and seeemed ok, throttle works fine but rudder turns har one direction,,and just humms,,,any ideas,,,,it wont respond to radio

Did you take the electronics (receiver and servos) apart to dry them? There might still be water/humidity in there. Sounds to me like the pot in the servo may still be wet. Try opening them up and letting them dry completely. If that doesn't work, try a different servo in that slot to see if it's the servo or the receiver. Usually they come back to life after being completely dried out. You don't want to keep messing with them while they're wet. I have also revived some with Corrosion X in the servos. Fill em up and then let them drip dry. This will normally void warranty though, but at this point it doesn't really matter does it!