I have more experience with nitro plans (though still somewhat limited) and decided to give a small electric a shot as well. I bought a small foamy Cessna 182 with a speed 400 motor.. My main questions are..

1-The wiring on the plane shows I should connect the battery to the esc and then the receiver will be powered through the esc. Does the speed controle step down the voltage to protect the receiver? It seems an odd way to power up your receiver and servos given the rx (Futaba) only call for 4.8V?

2-The suggested batterey is a 9.6 to 12V 1100Mah. Wyh specify how many Mah? Wouldn't 2000 or 3000 Mah be better to get more flight time as you would with an electric car?

3-suggested esc is a 20amp, should I just go for a 25A so I can also use it for 500 speed motors later.