FRTOFlight Radio Telephony Operator's License (aviation)
References in periodicals archive ?
riend was repeatedly robbed of the ball - once leading directly NIGHTMARE: Even the normally reliable George Frto a goal
In addition to thermal oxidizers (afterburners that operate around 1400[degrees]F), and catalytic oxidizers (more efficient afterburners that operate at about 800[degrees]F, thus using less fuel,) Probat now offers their "FRTO," the Flameless Regenerative Thermal Oxidation unit.