The pre-launch commentary today is excellent. Much more lively and knowledgable than past launch prep broadcasts. Good work NASA!Now if we could just get a little graphic on the video during launch showing speed, altitude, and downrange, kind of like a NASCAR broadcast, we'd be in business!
Note the yellow markers on the switches to the right. These control the AC power supply to the 6 main engine controllers. These are marked as to avoid accidental switching off of the power supplie to the engine controllers. This would cause immediate shutdown of a given engine.
Yes Allard Beutel, the KSC PAO is doing a great job for his first time doing a STS countdown, he will probably alternate with George Diller for KSC PAO duties for the remainder of the STS program launches.Richard