The Bell 427 stands out as a landmark in the evolution of commercial helicopters ... elevated the helicopter’s appeal for luxury transportation. Bell Helicopter is an American airspace ...

Between 2021 and 2024, over 15,000 cases were recorded where commercial jets and helicopters were dangerously close (less than 1 nautical mile lateral or 400 feet vertical separation). There have ...

The Washington, D.C., airspace is notoriously congested, and near midair collision (NMAC) data shows that one or more TCAS alerts involving helicopters and commercial jets occur at DCA every month.