High temperatures make air less dense, reducing engine performance and the amount of lift produced at a given speed. That generally means lower takeoff weights and longer takeoff distances are needed to produce sufficient lift.
DCA is the only airport in the country subject to a federally-imposed perimeter rule and is being underutilized as a result. This nearly 60-year-old regulation is making air travel longer and more expensive and harming businesses and the environment.
The U.S. aviation sector was struggling to return to normal on Wednesday after a nationwide ground stop imposed by the Federal Aviation Administration (FAA) over a computer issue that forced a 90-minute halt to all U.S. departing flights. More than …