111th Fighter Wing (111 FW), Pennsylvania Air National Guard, which operated the A-10 Thunderbolt II. It lost its aircraft to other ANG Squadrons and active duty components under BRAC. As of 2013, the Wing, now renamed the 111th Attack Wing, was slated to acquire ground control stations to remotely fly the MQ-9 Reaper and became operational in 2016.[6]
201st RED HORSE Squadron, Detachment 1 (201 RHS), Pennsylvania Air National Guard
270th Engineering Installation Squadron (270 EIS), Pennsylvania Air National Guard
Naval Air Maintenance Training Detachment (NAMTD) 1010
The base was home to the following military aviation units:
U.S. Army Reserve Units - A/4/158th Aviation Regiment flying UH-1H (GhostRiders), A & HHC/2/228th Avn flying UH-1H, OH-58, & C-12R (Winged Warriors). Outside of the USAR building on the base grounds, a retired UH-1D, used in 1974 White House helicopter incident, is on static display.[7]
Patrol Squadrons 64 (VP-64) and 66 (VP-66) of the United States Naval Reserve operating the P-3 Orion. VP-64 was later re-designated Fleet Logistics Support Squadron 64 (VR-64) and traded in its P-3 Orions for the C-130T Hercules
Fleet Air Reconnaissance Squadron 11 (VQ-11 "Bandits", established at Willow Grove, moved to NAS Brunswick, Maine in the middle of 1997 were establishment ceremony was held at). VQ-11 "Bandits" was formed from VP-66 Liberty Bell's Detachment.66 (called VQ-66 "Bandits") which received the Lockheed EP-3J Electronic Orion aircraft (BuNo 152745 & BuNo 152719) from VAQ-33 Firebirds on March of 1993. VQ-11 was the US Naval Air Reserve's only Reconnaissance Squadron, but performed Electronic Aggressor roles during fleet exercises.
On September 30, 2007, the Air Force Reserve Command disestablished the 913th Airlift Wing at the collocated Willow Grove ARS, and redistributed its C-130 Hercules aircraft to other active duty Air Force and Air Force Reserve units.
On February 29, 2008, the Commonwealth of Pennsylvania released a report detailing a plan for a joint interagency installation (JII), with a mission of national defense, homeland security and emergency preparedness. On November 13, 2009, Pennsylvania dropped the plan for the JII based on the gradual removal of the 111th Fighter Wing. Since then it is planned that a portion of the base will be used for the National Guard and other Reserve Component military personnel.
[8]
The airfield shut down on March 31, 2011; VP-64, VR-52, and a C-12 detachment were transferred to McGuire Air Force Base.[9][4]
On September 15, 2011, the base was closed. The Pennsylvania Air National Guard took custody, and the facility was to be designated Willow Grove Air National Guard Base, or Horsham Air Guard Station per source. A handful of National Guard and Army Reserve soldiers remained, and the Air Force maintained administrative offices on the property. The surplus land with the runways was turned over to Horsham Township for redevelopment. Horsham and other adjoining townships in Montgomery and Bucks Counties were debating the nature of this redevelopment.[10]
In September 2015, the Horsham Land Redevelopment Authority worked on an "economic development conveyance" (EDC) application to acquire the base. An EDC transfer is one way for the Navy to dispose of federal surplus property.[11]
