Given that the ECHO has 130gal of fuel on board at start-up for a charter flight.
The TAS is 175kt
The FPT is 260°M
The GAF wind is 100°T @ 30kt
and the variation is 6°E.
Find the time and distance to the PNR if the flight is to be conducted at 65% MCP.
Select one:
The time to the PNR is 82 minutes and the distance to the PNR is 309nm
The time to the PNR is 91 minutes and the distance to the PNR is 308nm
The time to the PNR is 102 minutes and the distance to the PNR is 325nm
The time to the PNR is 85 minutes and the distance to the PNR is 314nm

Im wanting to know how they are calculating the Safe endurance for the pnr equation without a fuel flow and reserve quantities as a time?