Automatic lag adjustment add-on for the FlightGear flight simulator

Project information

A work-in-progress attempt at making an add-on that will try adjust the multiplayer time offset to the weighted average, mostly based on distance, of the lag of multiplayer models within multiplayer range.

The biggest limitation for this to work well is that there is an inherent dependency on how well the clocks of peoples computers are synchronized to for example NTP servers. I have seen variations as big as -11.956 ± 136.723 seconds with 11 pilots (±2σ, two standard deviations. With enough samples 95% percent of the values would be within that range.) For reference at 250 kt you would fly about 130 m or 420 feet per second.

This is more or less a stop-gap measure, while waiting for what seem will be better multiplayer synchronization currently in the development version of FlightGear.

FlightGear multiplayer time synchronization