Quote (tard_sultan @ May 22 2017 08:08pm)
article says it starts at 11 km, sounds reasonable but what is the source for this information - exactly who did these experiments, do you have flight altimeter/odometer/magnetic compass/gyroscopic/accelerometer directional data, how are you mapping speed, do you have any source for the mechanics of this plane, like video of the engines, structural steel tests?
No, you just post old arguments from metabunk, um ok - so you got no proof.
keep dodging
The graph of the data. Blue line is the speed of sound. It is straight up/down between 11-20 km, meaning no change. It doesn't start getting faster again until 20 km according to the graph.

NASA is the source for the data in the graph. NASA! Muthafucking rocket scientists!
I am clearly not dodging. I am addressing your points one at a time, and will continue to do so so long as it appears we both understand the information.