Aeronautical Terms beginning with P
Permanent Ballast (fixed ballast)
A weight permanently installed in an aircraft to bring its center of gravity into allowable limits. Permanent ballast is part of the aircraft empty weight.
Payload
(GAMA) Weight of occupants, cargo, and baggage.
Pilot’s Operating Handbook (POH)
An FAA-approved document published by the airframe manufacturer that lists the operating conditions for a particular model of aircraft and its engine(s).
Potable Water
Water carried in an aircraft for the purpose of drinking.