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  2. Washington, D.C., Special Flight Rules Area - Wikipedia

    en.wikipedia.org/wiki/Washington,_D.C.,_Special...

    Within the ADIZ is an even more sensitive zone designated the Washington, D.C. Metropolitan Area Flight Restricted Zone (DC FRZ). The DC FRZ extends approximately 13–15 nmi (15–17 mi; 24–28 km) around the DCA VOR/DME. Flight within the FRZ is restricted to governmental, certain scheduled commercial and a limited set of waivered flights.

  3. List of heliports in Washington, D.C. - Wikipedia

    en.wikipedia.org/wiki/List_of_heliports_in...

    Until 1996, the Metropolitan Police Department (MPDC) operated eight helicopters, including three MD-500s and five Bell OH-58s. [5] The MPDC had heliports in the 2nd, 3rd, and 5th police districts. [1] The helicopters were sold after budget cuts; the MPDC used National Park Service helicopters as needed.

  4. Terrain awareness and warning system - Wikipedia

    en.wikipedia.org/wiki/Terrain_awareness_and...

    On March 7, 2006, the NTSB called on the FAA to require all U.S.-registered turbine-powered helicopters certified to carry at least 6 passengers to be equipped with a terrain awareness and warning system. [15] The technology had not yet been developed for the unique flight characteristics of helicopters in 2000.

  5. Military Most to Blame for Helicopter Noise Around DC, New ...

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  6. Sen. Dianne Feinstein calls for helicopter warning system ...

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  7. Ground proximity warning system - Wikipedia

    en.wikipedia.org/wiki/Ground_proximity_warning...

    A ground proximity warning system (GPWS) is a system designed to alert pilots if their aircraft is in immediate danger of flying into the ground or an obstacle. The United States Federal Aviation Administration (FAA) defines GPWS as a type of terrain awareness and warning system (TAWS). [ 1 ]

  8. Voice warning system - Wikipedia

    en.wikipedia.org/wiki/Voice_warning_system

    A female voice was incorporated into McDonnell Douglas DC-9, MD-80/90, McDonnell Douglas MD-11 and Boeing 717 (inherited from McDonnell Douglas after the merger with Boeing) series aircraft in their Central Aural Warning Systems (CAWS). These systems provided a voice for most warnings, including fire, altitude, cabin altitude, stall, overspeed ...

  9. Coast Guard Air Station Washington - Wikipedia

    en.wikipedia.org/wiki/Coast_Guard_Air_Station...

    Coast Guard Air Station Washington (CGAS Washington) is a United States Coast Guard Air Station in Arlington County, Virginia.Located at Ronald Reagan Washington National Airport adjacent to the Crystal City neighborhood of Arlington, the air station supports NORAD air defense missions in and around the Washington, D.C. metropolitan area and its Special Flight Rules Area, provides executive ...