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All school buses are restricted to a maximum speed of 60 kilometres per hour (37 mph). Prior to 1999, buses intended for transporting school children differed only in their route identification; there were no additional regulations on school bus design.
For example, Concorde had very high drag (a lift to drag ratio of about 4) at slow speed, but it travelled at high speed for most of the flight. Designers of Concorde spent 5000 hours optimizing the vehicle shape in wind tunnel tests to maximize the overall performance over the entire flightplan.
Concorde's pressurisation was set to an altitude at the lower end of this range, 6,000 feet (1,800 m). [129] Concorde's maximum cruising altitude was 60,000 feet (18,000 m); subsonic airliners typically cruise below 44,000 feet (13,000 m). [130] A sudden reduction in cabin pressure is hazardous to all passengers and crew. [131]
However, some school zones can have posted speed limits requiring drivers to lower their speed to 15 mph, the department’s website states. What does ‘when children are present’ mean?
The maximum speed of a Bugatti Chiron (the fastest production road car) is 305 mph. The Mitubishi Mirage (the cheapest car available in the US in 2023) tops out at 105 mph.
A speed limit is the limit of speed allowed by law for road vehicles, usually the maximum speed allowed. Occasionally, there is a minimum speed limit. [1] Advisory speed limits also exist, which are recommended but not mandatory speeds. Speed limits are commonly set by the legislative bodies of national or local governments.
Five years before Concorde’s first flight, ... The plane would later achieve a speed of just over 2,000 miles per hour, nearly 50% faster than Concorde. ... as the aircraft’s components were ...
As of May 15, 2017, 41 states have maximum speed limits of 70 mph (113 km/h) or higher. 18 of those states have 75 miles per hour (121 km/h) speed limits or higher, while 7 states of that same portion have 80 mph (129 km/h) speed limits, with Texas even having an 85 miles per hour (137 km/h) speed limit on one of its toll roads.