Does ATC know the difference between the Malibu/Mirage and a JetPROP?
• The short answer is yes, if you tell them. FAA Order 7340.1 CONTRACTIONS specifies the “P46T” designator for turbine powered Malibus. A JetPROP owner with GPS would file “P46T/G”. The “P46T” designator tells the controller that the JetPROP’s “CLIMB/DESCENT RATES based on average enroute climb and descent profiles at median weight between maximum gross takeoff weight and landing weights” is 1,500 fpm in climb and 1,500 fpm in descent. For comparison purposes, Order 7340.1 rates the standard Malibu/Mirage at 1,000 fpm in climb and descent.