SSD gave Lockheed a tentative go-ahead for Project Surefire on November 27 and established an emergency priority for completing the program. On the same day, Lockheed announced the formation of a Project Surefire Engine Development Task Force to carry out the program. Work was geared to meet the scheduled launch of GATV 5003 for Gemini VIII. GATV 5003 systems testing was halted. The main engine was removed November 23 and shipped to Bell Aerosystems for modification. Work on GATV 5004 was reprogrammed to allow it to complete final assembly with a modified engine.