Tuesday, March 20, 1962


McDonnell issues a $9 million subcontract to General Electric to design and develop fuel cells for the Gemini spacecraft. The General Electric design, selected by the Manned Spacecraft Center after an analysis completed January 23, appeared to offer advantages over the competing solar cells or other fuel cells in terms of simplicity, weight, and compatibility with other Project Gemini requirements. Much of this advantage is credited to the use of ion-exchange membranes rather than gas-diffusion electrodes within the fuel cells.

Thursday, March 1, 1962


Martin-Baltimore was authorized today to proceed with study and design work for the Gemini launch vehicle’s redundant flight control and hydraulic subsystems.

The major change in the flight control system, compared to those of the standard Titan II missile, is the substitution of the General Electric Mod IIIG radio guidance system, and the replacement of the Titan I three-axis reference system for the Titan II inertial guidance system.