NASA Headquarters approved the additional flight article in August and requested that the mission be designated Gemini-Titan (GT) 1A. Estimated cost was $1.5 to $2 million. The boilerplate to be used was originally planned for flotation tests at MSC. It was manufactured by local contractors and modified by MSC after it was delivered in September. The adapter, identical in configuration and instrumentation to the one used for spacecraft No. 1, was to be shipped directly from McDonnell to Cape Canaveral, along with telemetry equipment and wiring harnesses to be installed in the boilerplate at the Cape. The GT-1A mission, if it were flown, would be identical to GT-1, but it would be flown only if GT-1 failed to achieve its objectives. Boilerplate flight article 1A left for the Cape on December 13.