Re: Love watching space rockets, especially Saturn V lift off's
The rocket was kept on the pad until all the engines reached the required thrust, engines don't go from 0 to full thrust immediately, especially engines as large as the F-1. When engines were OK, the holding arms on the Mobile Launcher base quickly released the rocket for liftoff.
As you see from the count-down, engines ignition happened *before* lift-off.
Biting the hand that feeds IT
