f106bdeltadart

This probably reflects the aircraft's handover back to USAF after conversion to TEST-to-TACTICAL which was when aircraft were returned to Convair and upgraded from TAC Conventional to Vertical instruments in 1961. Fuselage cut in half at station 412 (Aft bulkhead missile bay) and a new fuselage, cockpit section, and nose section was installed with the latest production avionics, and reassigned to various ADC units. F-106B 57-2515 was the last aircraft so modified. Stig

PS: Roll-out from Convair was on 19 April 1961 and after tests etc the above seems pretty logical. Stig

F-106B-31-CO, s/n 57-2507. Assigned to NASA Lewis Research Center, Cleveland, OH. Redesignated NF-106B. Used as ejection seat test aircraft (shown in photo). Assigned to NASA Langley Research Center, Hampton, VA. Scrapped 1984.

This is the first Convair F-106B-31-CO / NF-106B / JF-106B Delta Dart 57-2507 (0-72507) "family model". Civilian registration was N607NA. She was used as a chase support and ejection seat test aircraft. Also used in final qualification tests for Gemini spacesuit and spacecraft escape systems as well as solar cell calibration tests and air sample collections. Later transferred to NASA as "NASA 607" @ Langley AFB in May 1981 and cut in half lengthwise for wind tunnel tests. Finally sold for scrap on 24 Feb 84.