![]() Close to three-quarters of a million gallons of propellants were loaded during these 5 hours. As we came into the count this morning, we did already have the fuel aboard the first stage, but it was necessary to bring the liquid oxygen aboard all three stages and the liquid hydrogen fuel aboard the second and third stages. The major portion of the countdown during the early morning hour some five hours of work was taken to load the various propellants aboard the stages of the Saturn V launch vehicle. We've just had two comparatively minor problems since that time. It picked up at the T minus 9-hour mark at 11:00 pm Eastern Daylight last evening. The countdown still proceeding satisfactorily. ![]() At 29 minutes, 24 seconds and counting this is Kennedy Launch Control. Both Columbia and Eagle are Go at this time. The Command Module call sign, once the two vehicles separate, will be Columbia. The Lunar Module on Apollo 11, of course, when it separates from the Command Module in lunar orbit, will have the call sign Eagle. For the next 20 minutes we'll take a look at some systems in the Lunar Module, then power down at about the 10-minute mark in the count, power down the telemetry to preserve the power of the LM. ![]() The Lunar Module, which has been rather inactive during these latter phases of the count also is going on internal power at this time on the 2 batteries on the ascent stage and the 4 batteries of the descent stage. The next time we go internal will be at the 50-second mark with those batteries and they will remain, of course, on internal power during the flight. We've just taken a look at them by going internal and then switching back to external again. We remain on external power through most of the count to preserve those batteries which must be used during the powered flight. We've just got by an important test with the launch vehicle checking out the various batteries in the three stages and Instrument Unit of the Saturn V. The countdown still proceeding very satisfactorily at this time. At T minus 30 minutes, 52 seconds and counting aiming toward our planned lift-off time of 32 minutes past the hour, the start of our launch window on this, the mission to land men on the Moon. We've just passed the 31-minute mark in our count.
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