Wiring in a rx, an ESC and a battery (pack)
first take a deep breath and calm down its not rocket science.
Question does your ESC have a battery eliminator ?
if so take away the dry batteries to use in something else.
Now your nicads connect to the POWER side of the esc. make sure you have the correct polarity.
The servo plug from the ESC plugs into your receiver whichever is your throttle channel. if you have a modern set then you can put it on the wrong way round with no worries since positive is the centre post.
The output of the ESC connect to your motor. if its a brushed motor no need to worry about polarity for now.
With your ESC there should be some setup instructions if there are none ......
Usually its connect and switch on receiver then switch transmitter on with throttle full listen for beeps then go to low throttle. Switch receiver off. When you switch on in future make sure transmitter is switched on FIRST
ok having gotten this far it only remains to check the direction of rotation of the motor. Take off the prop ( saves fingers) and put a piece of masking tale around end of prop shaft.
Switch on transmitter switch on receiver and try the throttle. if the motor spins in correct direction fine if not
Brushed motor swap the motor leads over
Brushless motor swap any 2 of the 3 motor leads over.
Job done have a cuppa then decide to sort out the rudder.
"that's not a bug its just an undocumented creature."
Sir Terence David John "Terry" Pratchett, OBE (28 April 1948 - 12 March 2015)