| Acronym | Meaning |
| FEC | Forward Events Controller |
| IOQE | Input/Output C)ueue Element |
| PT | Advanced Planning And Technology Office (KSC Dir.) |
| LASV | Low Altitude Supersonic Vehicle |
| MCA | Monitoring And Control Assembly |
| MVS | Middle Value Select |
| BDD | Baseline Definition Document |
| MTO | Maximum Time Out |
| BRG | Bearing |
| PPB | Parts Per Billion |