Quote Originally Posted by 1600vw View Post
If you fly a single seat and a Non-electric airplane, transponder or radio not required.
If you wish to fly within the Class B or C airspace, then you are required to have the transponder whether or not you have electrical, single seater or no.

Lack of electrical system excuses you from needing to have a transponder within the 30-mile Class B "Veil", as long as you stay out of the actual Class B airspace (inverted wedding cake). Again, doesn't matter how many seats the plane has.

A single seater *is* excused from the ELT requirement.

Ron Wanttaja