In what year was the first USC aviation unit established?

The establishment of the first United States Coast Guard (USCG) aviation unit in 1913 marked a significant milestone in the evolution of aviation within the military services. This unit was known as the Marine Inspection Service and represented the early recognition of the importance of aviation for maritime operations and national defense.

The year 1913 was pivotal since it set the foundation for the use of aviation in search and rescue, naval reconnaissance, and other maritime missions. The development of aviation capabilities within the Coast Guard allowed for enhanced surveillance and operational effectiveness, which would evolve significantly over the subsequent decades.

In comparison, the earlier years listed, such as 1900, 1905, and 1921, do not correspond with the founding of this critical aviation unit. While those years mark important developments in other areas of military service and technology, they do not represent the inception of aviation efforts within the Coast Guard. Thus, 1913 stands out as the correct answer due to its historical significance in establishing a dedicated aviation unit in the Coast Guard.