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Made from Apollo 15-17 EMU Spacesuit

For the last three Apollo lunar flights Apollos 15, 16, and 17, the spacesuits were extensively revised. The pressure suits were called A7LB, which came in two versions. The Extra-vehicular (EV) version was a new mid-entry suit that allowed greater mobility and easier operations with the lunar rover. The A7LB EV suits were designed for longer duration J-series missions, in which three EVAs would be conducted and the Lunar Roving Vehicle (LRV) would be used for the first time. Originally developed by ILC-Dover as the "A9L," but given the designation "A7LB" by NASA, the new suit incorporated two new joints at the neck and waist. The waist joint was added to allow the astronaut to sit on the LRV and the neck joint was to provide additional visibility while driving the LRV. Because of the waist joint, the six life-support connectors were rearranged from the parallel pattern to a set of two "triangles," and the up-and-down back zipper was revised and relocated. The "zipper" is actually a misnomer in that the A7L entry was through two zippers sewn over each other. The inner zipper had rubber teeth and provided sealing. The outer (externally visible) zipper was a conventional metal toothed slider for mechanical restraint. The A7LB had two pairs of such zipper sets that intersected on the right side of the suit above the waist joint. Opening the suit required undoing a clasp that held the zipper sets together.

Details:

• Name: Apollo 15-17 EMU
• Manufacturer: ILC Dover (Pressure Suit Assembly) Hamilton Standard (Primary Life Support System)
• Missions: Apollo 15-17
• Function: Intra-vehicular activity (IVA), orbital Extra-vehicular activity and terrestrial Extra-vehicular activity (EVA)
• Operating Pressure: 3.7 psi (25.5 kPa)
• IVA Suit Mass: 64.6 lb (29.3 kg)
• EVA Suit Mass: 78 lb (35.4 kg)
• Total EVA Suit Mass: 212 lb (96.2 kg)
• Primary Life Support: 7 hours (420 minutes)
• Backup Life Support: 30 minutes
  

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