Supersonic Pushing the Envelope Documentary March 21, 2015 Steven Thompson ⋅ building envelope ⋅ Like 0 Thanks! You've already liked this « Envelope Tracking Tutorial | RF Amplifier ET | Radio-Electronics.com » Employee Profile: Brian Beavers- Sound Inspections and Investigative Engineers, Auburn, WA 5 Comments news2youmedia August 17, 2013 @ 10:25 pm barracuda7018 August 3, 2014 @ 8:33 am SR-71, the greatest ever… Sean Bad December 3, 2014 @ 6:39 pm Remember landing at CPT and as we walked fom the aircraft to the terminal, one of those lightnings took off, went inverted, rolled over and headed out to sea, what a sight seeing, could only imagine been on it. Thunder city really was awesome harvey wind March 7, 2015 @ 3:34 am So irritating to keep hearing measurements given in kilometers, meters, centimeters, and every other unit, as long as it isn’t those we are used to.. its as if they would die rather than use measurements that such rustics as we Americans are habituated to. It takes a lot of the wonder and amazement of speeds so very vast, if we must always be converting from inches, feet, and mph or even knots per hour. The writers are just showing off, and I am getting ready to abandon this video. (not that anyone gives a rip) Shaan Akhtar March 7, 2015 @ 7:47 am I’m pretty sure the X-15 was the fastest plane in the history of aviation, not the blackbird. It could fly up to mach 6, and I think almost mach 7.