337th Aeronautical Systems Group The 337th Aeronautical Systems Group is an inactive United States Air Force unit . Its last assignment was with Air Force Materiel Command ( AFMC ) , Aeronautical Systems Center at Wright Patterson AFB , Ohio . It was inactivated in 2008 . History . World War II . The 337th Fighter Group was activated at Morris Field , North Carolina with the 98th , 303d , and 304th Fighter Squadrons assigned . It received its initial cadre from the 20th Fighter Group . The group operated as replacement training unit , flying primarily P - 40 Warhawk s and P - 51 Mustang s , but also other fighter aircraft . In February 1943 , the group added a fourth squadron , the 440th Fighter Squadron The group maintained a split operation with squadrons operating from both Sarasota Army Air Field and Pinellas Army Air Field . The group and its components were disbanded in 1944 in a major reorganization of the Army Air Forces ( AAF ) in which all units not programmed to be transferred overseas were replaced by AAF Base Units to free up manpower for overseas deployment . The 336th AAF Base Unit ( Replacement Training Unit , Fighter ) assumed the mission of the group at Sarasota , while the 341st AAF Base Unit ( Replacement Training Unit , Fighter ) took over the group ' s equipment at Pinellas . Cold War . The group was reconstituted , redesignated as the 337th Fighter Group ( Air Defense ) and activated in 1955 as part of Air Defense Command ' s Project Arrow , which was designed to bring back on the active list the fighter units which had compiled memorable records in the two world wars . It assumed the personnel and equipment of the inactivating 503d Air Defense Group , while its 460th Fighter - Interceptor Squadron ( FIS ) , which moved to Portland International Airport from McGhee - Tyson Airport , took over the F - 89 Scorpion aircraft and personnel of the 503d ' s 497th FIS , which moved to Geiger Field , Washington . The group also served as the host organization for regular USAF units at Portland International Airport and was assigned a number of support organizations to perform this mission . In May 1958 , the group converted from F - 89Ds to F - 102 Delta Dagger aircraft . It operated interceptors to provide active air defense in the 25th NORAD Region area of responsibility until it was inactivated in a phaseout of interceptors due to budget reductions in the spring of 1966 . Modern Era . In 2005 , AFMC formed the Training Aircraft Systems Group as part of the AFMC Transformation initiative , which replaced traditional project offices with wings , groups , and squadrons . In 2006 most of these new organizations were consolidated with World War II units and given the numbers of the older units . As a result of this , the group became the 337th Aeronautical Systems Group . In 2007 , the group ' s Foreign Military Sales ( FMS ) team oversaw the effort to provide the Iraqi Air Force with Cessna 172 training aircraft to resume operations and also sought vendors for Counterinsurgency ( COIN ) aircraft for Iraq . The group was inactivated in 2008 and its subordinate units were transferred to the 77th Aeronautical Systems Wing ' s 877th Aeronautical Systems Group . Lineage . 327th Fighter Group Training Aircraft Systems Group Components . Operational Squadrons Support Units Systems Units