Since its development in 1917, Marine Corps Base Quantico has been the frontline of innovation. Marine concepts, doctrine, training, and equipment of the future are initiated on the base. The techniques of amphibious warfare, for which the Marine Corps is renowned, were conceived and perfected at this base.
The Department of the Navy awarded a $62 million contract to the design-build team of HSMM and Clark Design/Build, LLC to design and construct two aircraft maintenance hangars, Greenside and Whiteside, at the Marine Corps Air Facility at Marine Corps Base Quantico in Virginia. With over 1,000 personnel assigned, HMX-1, supported by the Greenside and Whiteside Hangars, is the largest permanently formed aircraft squadron in the Marine Corps and is based at Quantico. Although connected, the two superstructures are known separately as the 180,250-square-foot Whiteside Complex, which serves the Executive, and the 56,850-square-foot Greenside Complex, which supports the rest of the HMX-1 fleet.