LROPS published yet another pdf file on simMarket. They explain “….. The underlying principles for inserting data into the majority of FMC systems are fairly similar, whether your favourite aircraft is an Airbus, Boeing or a Douglas. This guide explains in detail how to enter a NAT into the Boeing 75/767 FMC and all the associated functions to do with flying a NAT, such as how to program offsets and how to insert enroute weather information to improve accuracy of fuel predictions and ETA’s.
Bundled with this guide is a copy of the LROPS document “Offsetting Within NAT Airspace”, to further explain a topic covered in the guide – offsetting…..”. Get it here from simMarket.