173 (number) - in Transportation

In Transportation

• The Georgia Railroad, the world longest railroad in 1845, ran for 173 miles (278 km) from Augusta to Marthasville (Atlanta, Georgia)
• The Space Shuttle Columbia STS-78 (June 20 - July 7, 1996) had an orbital altitude of 173 statute miles
• United Airlines Flight 173 en route from Denver to Portland crashed on December 28, 1978
• The Velocity 173 was a kit aircraft produced by Velocity Aircraft in the early '90s.
• Missouri Route 52 comprises 173 miles (278 km) of primarily two-lane roadway in Missouri