PeterMorgan

I thought I would share something that I have learned regarding the entry of user-defined waypoints in the default FMS in X Plane 737. The format for Latitude/Longitude is displayed in the FMS (LSK 3) as allowing two decimal places for minutes. For precision, two decimal places are required and in charts, minutes are often specified to two decimal places, for example ­­­N53 27.81/W113 24.91. However, entering the second decimal place for minutes in the scratch pad except when it is zero, always results in a rejection of the entered value when the line select key for latitude/longitude is pressed. When the second decimal place value is omitted from the scratchpad entry, the waypoint can be successfully stored https://drive.google.com/file/d/1-6vlHspoX1Nx1Bkz93zyPjhHX-s-Ij3k/view?usp=sharing https://drive.google.com/file/d/1-0__EY5EuO9IASE5p1zCzfOlogwV547T/view?usp=sharing Practically, rounding to the nearest one tenth of a minute can result in a positional error of 100 meters approximately, which for a flight simulator may not matter so much. Note that greater precision is possible when custom waypoints (or published waypoints that are not included in the default database) are added directly in the user_fix.dat file.