View looking down onto the first stage of a Saturn V on the pad during the last minute before ignition and launch. A small explosion of cryogenic fuel boils out from a vent as a swing arm detaches and swings back. Ignition happens at one minute into the clip and the oxygen in the flame trench is suddenly used up sucking in air around it and from above. The vibrations start to shake ice from the outside of the rocket and large white slabs and fragments of it start to tumble into shot. The ice forms on the outside of the super-cooled rocket from frozen moisture in the atmosphere. The restraining brackets in the base release and the rocket rises out of the view, hurling heat and vapor and debris down spectacularly onto the pad as it rises away from the ground. Date recorded: 7-16-1969