Hi,

This being a hobby, there are all sorts of strong opinions.

I personally use dual switches and dual batteries with a single rx on any rc plane under $500 in value.

Planes valued from $500 - $15,000 are equipped with dual rxs and dual batteries. Others will swear that a single rx and single battery is good to go, no matter the size of the airplane or value.

While careful installation and maintenance reduces the failure rate of equipment, the use of dual systems (dual rxs with individual batteries), each controlling 50% of the airplane insulate the plane from any failure other than RF interference.

Elson