Here is the FlightAware track for a CitationX going from the West Coast to Florida.
§ 91.817 Civil aircraft sonic boom.
(a) No person may operate a civil aircraft in the United States at a true flight Mach number greater than 1 except in compliance with conditions and limitations in an authorization to exceed Mach 1 issued to the operator under appendix B of this part.
(b) In addition, no person may operate a civil aircraft for which the maximum operating limit speed MMO exceeds a Mach number of 1, to or from an airport in the United States, unless—
(1) Information available to the flight crew includes flight limitations that ensure that flights entering or leaving the United States will not cause a sonic boom to reach the surface within the United States; and
(2) The operator complies with the flight limitations prescribed in paragraph (b)(1) of this section or complies with conditions and limitations in an authorization to exceed Mach 1 issued under appendix B of this part.
Yes, it was more than once, but it was not in a descent. The engines are very much derated. Look for an update to the max cruise speed at NBAA.They broke the Mach1 more than once during descents in that plane, mostly on accident. Apparently they kept doing it during testing.
Not an issue. Hydraulic elevators and trimable stab. We can even fly up to .82 with mach trim inop.Gee I'd sure hate for my elevator to stop being effective!
Just wait until they get out fitted with winglets, then its really supposed to scream.
Mine is gonna have spinning wheels and glass packs.
BTW flight aware and other sites only show the groundspeed. It is very possible to have a super sonic ground speed but be well below 1.0M in the aircraft.