The permitted flight ceiling on the PotomacRiver near Reagan National Airport is 200 feet – a crucial ceiling for keeping the heavy flow of militaryhelicopters safely clear of the steady ...
ARLINGTON, Va. — Crews were on the scene on the PotomacRiver on Monday to retrieve the submerged wreckage of an airliner and an Armyhelicopter that collided midair in the deadliest U.S. air ...