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A1C

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A1C Suit NASA suit technicians assist Astronaut Virgil Grissom during suiting Credit: NASA

Status: tested 1965.

The A1C was a full pressure suit featuring a closed loop system and custom sizing.

Photo Gallery

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Apollo 204 Apollo 1 prime crew in spacesuits at the launch complex Credit: NASA

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• Apollo space suit development review - . Nation: USA. Program: Apollo. Spacecraft: A1C, A7L.

  Representatives from MSC Crew Systems Division (CSD) visited Hamilton Standard to discuss space suit development. The prototype suit (024) was demonstrated and its features compared with the Gemini suit. Deficiencies in the Apollo helmet were noted and suggestions were made on how to improve the design. (At this time, CSD began looking into the possibility of using Gemini suits during Apollo earth orbital flights, and during the next several weeks began testing Gemini suits in Apollo environments.)

• Unmanned testing of Gemini and Apollo space suits - . Nation: USA. Program: Apollo. Spacecraft: A1C, A7L, Gemini. Ling-Temco-Vought received a contract from MSC, valued at $365,000, for unmanned testing of Gemini and Apollo space suits in the firm's space environment simulator..

• Use of modified Gemini space suits for Block I Apollo - . Nation: USA. Program: Apollo. Spacecraft: A1C, A7L, Gemini. Crew Systems Division approved the use of modified Gemini space suits in Block I Apollo spacecraft. MSC and David Clark Company amended their Gemini suit contract to cover design and fabrication of a prototype Block I suit..

• Navy testing of the Gemini Block I Apollo space suit - . Nation: USA. Program: Apollo. Spacecraft: A1C, A7L, Gemini.

  The U.S. Navy Air Crew Equipment Laboratory began testing the Gemini Block I Apollo space suit in a wide range of environmental temperatures to determine the comfort and physiological responses of the wearer. The program, delayed because of difficulties with humidity control, was to be completed in three to four weeks.

• Design of the Apollo Block I space suit helmet ear cup and attachment was finalized - . Nation: USA. Program: Apollo. Spacecraft: A1C, A7L.

  The design of the Block I space suit helmet ear cup and attachment was finalized. Based on evaluation of AFRM 007 acoustic test data, it was determined that existing Gemini-type "soft" ear cups were adequate for Block I flights. North American and David Clark Company specifications would be changed to reflect revised requirements. The majority of drawings for the suit had been reviewed and approved by MSC's Crew Systems Division. Remaining to be resolved and approved were selection of helmet visor material, installation of helmet microphones and earphones, communications harness, and fingertip glove lighting systems.