3/27/2023 0 Comments Schick test![]() ![]() He actually commands the elevators which are part of the egress system, emergency egress system, for the astronauts. Stoney, astronaut Bob Parker, the Capsule Communicator here in the firing room who has a variety of functions during this mission one of which is to set the elevators at the 320-foot level. T-02:10:54 - This is Apollo Saturn Launch Control we're at T minus 55 minutes, 54 seconds and counting. Now, T minus 59 minutes, 32 seconds and counting this is Kennedy Launch Control. We've been tracking some local buildups, but at this time they're just - they do not seem to be posing any problem for an on-time launch at 9:53 pm EST. Cernan said "We'll see you when we get back." The pad leader responded that "The next face you see had better be a frogman or you're in trouble." The weather appears to be satisfactory. Just before they left, they indicated to Cernan, they were completed their jobs going back away from the pad area. Meanwhile, at the pad, the close-out crew has completed securing the white room area, and they are clearing the pad area themselves at this time. A check was just made with the Superintendent of Range Operations who ran through the camera coverage looking at the weather around the various areas to see what camera coverage, and that appears to be satisfactory. These are used in conjunction with C-band radar here at Kennedy Space Center to check the space vehicle during powered phase of flight. These are checks of the beacons, two of them aboard the Instrument Unit of the space vehicle. ![]() Just completed were the C-band beacon checks. T-02:15:33 - This is Apollo Saturn Launch Control we're at T minus 1 hour and counting. T minus 1 hour, 11 minutes and counting this is Kennedy Launch Control. Our countdown continuing to go smoothly now as we approach the 1-hour mark. Searchlights will also illuminate the Apollo 17 for the first 60 feet of its flight. At lift-off, approximately 7,500 foot-candles will be produced from the flame of the Saturn V first stage engines. Out at the pad, the space vehicle is surrounded by searchlights producing some 225 foot candles of light, a total of 72 20-kilowatt xenon lights and two 60-kilowatt xenon searchlight banks provide this illumination. ![]() Normally, however, all burns of this engine are done by the computer. He does this using his flight hand controller and this is a system which is done so that if there is a problem with the computer which normally flies these, he could take over and manually fly it. During these checks, the spacecraft commander actually gimbals or moves, swings the main engine in the Service Module. At this time, spacecraft commander Gene Cernan and the Spacecraft Test Conductor Skip Chauvin are going over some command checks. T-02:26:58 - This is Apollo Saturn Launch Control we're T minus 1 hour, 12 minutes and counting. The Spacecraft Test Conductor Skip Chauvin indicated they're running ahead and looking good, to which Cernan replied, "We're looking good up here too." The countdown continuing to move along well at this time T minus 1 hour, 21 minutes and counting this is Kennedy Launch Control. The checks in the spacecraft continue to run somewhat ahead of schedule. It reads zero as it sits on the pad and during the test a simulated command is sent to it, and Gene Cernan in the spacecraft reads off what he is reading in the spacecraft during that sim command. It would indicate any deviation from the planned flight route. The Q-ball is an angle-of-attack meter which is perched above the Launch Escape System, and it's read by the spacecraft commander in the spacecraft. They give indications of range, velocity during the powered phase of flight. The C-band beacons aboard the launch vehicle are used in tracking. ![]() C-band beacons are in check at this time. The Jimsphere is a weather balloon which is the final weather balloon to go up before launch indicating the wind direction. Also, we just received a final Go for the Jimsphere release. A test signal is sent to the Eastern Test Range and to the Manned Spacecraft Center in Houston to assure that they will get this signal at lift-off. This is the first motion of the vehicle as it lifts off the pad. Also just completed was a first motion signal. These tests are to ensure that Houston can send commands, and that they are being received on or by the launch vehicle. Just completed were some preflight command tests with the Manned Spacecraft Center in Houston. The 65-per cent nitrogen/35-per cent oxygen mixture will now be enriched to a 60/40 mixture at lift-off. Cabin purge has now been completed and the Boost Protective Cover has been closed. T-002:37:22 - This is Apollo Saturn Launch Control we're at T minus 1 hour, 22 minutes and counting. ![]()
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