A "typical" Nike Ajax installation, site NY-09 contained three underground missile magazines and a dozen launchers. The base became operational during 1955 and remained under Regular Army command until 1960 when the New York Army National Guard took command of the site. NY-09 was one of several New York area Nike sites that were not converted to use the larger and more powerful, second-generation Nike Hercules missiles. It remained in operation through 1963.

	Location Launcher Area: White Plains, NY Control Area: White Plains, NY Dates of Operation 1955-1963 Weapons Systems & Missile Load Nike Ajax / 30 Nike Hercules / 0 Missile Magazines 3 Magazines. 1 type "B" and 2 type "C".		Radar Types ACQR. Unit Information Army - B/66th (1955-1958) B/1/55th (1958-1960) National Guard - HHB/1/212th (1959-1963) B/1/212th (1960-1963) Present Status The site is partially intact. One portion of the former launcher area is currently used by the New York Army National Guard.