If they don’t already have your call sign, they can identify you from your heading and altitude. Failing that, they will give you a squawk code to punch into your transponder that will identify you on the board.
GPS is not required instrumentation, but the typical “six pack” is: airspeed indicator, altimeter, vertical speed indicator, attitude indicator, heading indicator, and turn coordinator.
If you call into ATC they can give you your exact coordinates and ground speed.
If they don’t already have your call sign, they can identify you from your heading and altitude. Failing that, they will give you a squawk code to punch into your transponder that will identify you on the board.
GPS is not required instrumentation, but the typical “six pack” is: airspeed indicator, altimeter, vertical speed indicator, attitude indicator, heading indicator, and turn coordinator.
If you call into ATC they can give you your exact coordinates and ground speed.
Yeah, this just calls for the SR71 ground speed check story