Originally Posted by Extraboy
Sounds like the rx is not bound properly. Try re-binding and see if that works. If not, before you connect your battery to the rx push your throttle stick to full on your tx , connect battery, wait for double beeps then bring your throttle stick back down. This will reset your esc.
Extraboy's advice works most of the time for me. A lot of new planes I've been getting lately I've had to do that full throttle to initialize the throttle range first. A couple of my FMS planes it turned out I needed to reverse the throttle channel to get it to work.
But certainly a word of advice, make sure to the this with the PROPS OFF
Much safer that way, just in case...