There isn’t any speed restriction at and above 10,0000. They have wanted to get up to higher speeds but not necessarily needed a higher altitude. 10,000 also keeps them below the traffic that is traversing the area.
First of all, Allen, it is NOT “DUMB(ING) IT DOWN” to provide a link for someone. It’s call common courtesy. [mumbling under breath]Gee, what a crap head![/mumbling under breath]
Secondly, did I say “there is NEVER a speed restriction” or did I say “(t)here isn’t any speed restriction…”? There is a difference. It’s only logical that if ATC (air traffic CONTROL) is controlling traffic then they would have the authority to place a speed restriction on aircraft.