Based on the filename pattern, appears to be one segment of a multi-part compressed archive, likely related to a flight simulation or military training digital asset released around October 22, 2019 (GF191022). Context and Origin The acronyms in the name suggest it may be linked to:
Files from unofficial sources with military-style naming conventions should always be scanned with VirusTotal or similar antivirus software before execution. GF191022-ULOTC-FLT.part13.rar
Are you attempting to or looking for the rest of the file parts ? Based on the filename pattern, appears to be
Standard shorthand for "Flight" or "Flight Training" in military and simulation contexts. Based on the filename pattern
University of London Officers' Training Corps - The British Army