Computes the point of no return (PNR), also called the point of safe return
(PSR). This is the farthest distance from departure beyond which the aircraft
cannot return to the departure point with the fuel remaining.
Two separate ground speed parameters allow the consumer to account for wind:
outbound ground speed may differ from the return ground speed due to
headwind/tailwind components.
Parameters
fuelAvailable: number
Fuel on board (in any consistent unit).
fuelBurnPerHr: number
Fuel burn rate per hour (same unit as fuelAvailable).
Computes the point of no return (PNR), also called the point of safe return (PSR). This is the farthest distance from departure beyond which the aircraft cannot return to the departure point with the fuel remaining.
Two separate ground speed parameters allow the consumer to account for wind: outbound ground speed may differ from the return ground speed due to headwind/tailwind components.