Baltimore/Washington International Thurgood Marshall Airport (IATA: BWI, ICAO: KBWI, FAA LID: BWI) is an international airport located in Linthicum in northern unincorporated Anne Arundel County, Maryland. The airport is 9 miles (14 km) south of downtown Baltimore and 32 miles (51 km) northeast of Washington, D.C.
1. staff sergeant-a noncommissioned officer ranking above corporal and below sergeant first class in the Army or Marines or above airman 1st class in the Air Force. sergeant-any of several noncommissioned officer ranks in the Army or Air Force or Marines ranking above a corporal.
Technical Sergeant, Tech Sgt in informal parlance, is the sixth enlisted rank (pay grade E-6) in the U.S. Air Force, just above staff sergeant and below master sergeant. A technical sergeant is a noncommissioned officer and abbreviated as TSgt (with no period in official USAF and other military correspondence).