Marine Corps Air Station Tustin (IATA: NTK, ICAO: KNTK, FAA LID: NTK) is a former United States Navy and United States Marine Corps air station, located in Tustin, California.

[2] The base was designed for blimp operations in support of the Navy's coastal patrol efforts during World War II.

By the early 1990s, MCAS Tustin was a major center for Marine Corps helicopter aviation and radar on the Pacific Coast.

Its primary purpose was to provide support services and material for the 3rd Marine Aircraft Wing and for other units utilizing the base.

In addition to providing military support, MCAS Tustin leased 530 acres (2.1 km2) to farmers for commercial crop development.

The remaining 300-plus acres (120 ha) will be conveyed to other federal agencies, the City of Tustin, and public institutions for the same uses once environmental clean-up operations have been concluded.

[6] Worldwide Aeros Corp utilized the north hangar to build a prototype cargo airship under contract from the Pentagon and NASA.

Orange County Fire Authority units responded, adapting a defensive strategy and letting it burn due to the risk of roof collapse.

[1] In the summer of 2013, OC Parks was in the process of gathering input from the community in order to determine the features and layout of the forthcoming facilities.