the backpack gained a front-mounted display and control unit named the remote control unit. This was revised for Apollo 11 to additionally provide camera attachment to provide high quality lunar pictures. Intravehicular (CMP) Pressure Suit Assembly Torso Limb Suit Assembly The Command Module pilot (CMP) had a TSLA similar to the commander and lunar module pilot, but with unnecessary hardware deleted since the CMP would not be performing any extravehicular activities. For example, the CMP's TSLA had only one set of gas connectors instead of two, and had no water cooling connector. Also deleted was the pressure relief valve in the sleeve of the suit and the tether mounting attachments which were used in the lunar module. The TSLA for the CMP also deleted an arm bearing that allowed the arm to rotate above the elbow. Intravehicular Cover Layer Over the TSLA, command module pilots wore only a three-layer Intravehicular Cover Layer (IVCL) of nomex and beta cloth for fire and abrasion protection. Constant Wear Garment The CMP wore a simpler cotton fabric union suit called the Constant Wear Garment (CWG) underneath the TSLA instead of the water cooled Liquid Cooling Garment. His cooling came directly from the flow of oxygen into his suit via an umbilical from the spacecraft environmental control system. When not performing lunar EVA's, the LMP and CDR also wore a CWG instead of the LCG. Apollo 15-17, Skylab and ASTP Spacesuits Apollo 15-17 EMU 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