| |||
| Advanced Program-to-Program Communication File Transfer Protocol (A file transfer protocol used in IBM host systems, the IBM Advanced Program-to-Program Communications equivalent to the TCP/IP File Transfer Protocol) | |||
| English thesaurus | |||
| |||
| aircraft flight test plan; acceptance function test procedure | |||
| anonymous file transfer protocol; acceptance functional test procedure | |||
| Advanced/Anonymous File Transfer Protocol | |||
| Advanced Program-to-Program Communications File Transfer Protocol; anonymous FTP (Bricker) | |||
| Air Force, Director of Transportation | |||
| additional flight training period | |||
