First time RC buyer. We purchased a Gee Bee 751 for our grandson. We got it put together, but can't get the motor to turn on. The flaps and things work. There is a red switch (button) on the left side of the fuselage, but the instructions don't even mention this item. Battery is charged. Can't figure out what I am doing wrong, and the instructions are the worst in the world. Any help would be greatly appreciated. Thanks. dheiron in manitowoc, wi.