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The FAA states "The height–velocity diagram or H/V curve is a graph charting the safe/unsafe flight profiles relevant to a specific helicopter. As operation outside the safe area of the chart can be fatal in the event of a power or transmission failure it is sometimes referred to as the dead man's curve."
Service began on August 1, 1976 as the second helicopter air medical program in the United States of America. The founder, Dr. James H. "Red" Duke, Jr., was the medical director for Life Flight from its inception until his death August 25, 2015. To date, Life Flight has flown more than 120,000 patient missions.
Flight for Life is a prehospital care service with many bases of operation across the United States. [1] Flight for Life is primarily known for its emergency medical helicopter transport, but also operates a fleet of land vehicles and fixed-wing aircraft for the transport of critically ill patients to specialized medical care. [2]
LifeFlight’s primary mode of air ambulance transport is a Sikorsky S-76-C+ helicopter, owned and operated by Canadian Helicopters Limited. LifeFlight has two of these helicopters, one as a backup, since January 2017, when EHS signed a $105 million 15-year contract with the company.
For aircraft specification calculation in aeronautics, limit load (LL) is the maximum design load expected as the maximum load any aircraft will see during its lifetime, [1]
New England Life Flight, d/b/a Boston MedFlight (commonly referred to as "BMF"), [1] is a non-profit organization that provides emergency scene response and emergency interfacility transfer in Eastern Massachusetts at the Critical Care level (higher than the more common Paramedic level [2]) using helicopters, fixed-wing aircraft, and ground ambulances.
Life Flight Network is a non profit air and ground critical care transport service based in Aurora, Oregon, in the northern Willamette Valley, with services in Oregon, Washington, Idaho, and Montana in the United States.
The steel-composite rotors could not meet the Army specification for a life of 1500 flight hours, and needed replacement after just 146 hours. After six changes to the design, the rotor blade life was extended to 1400 hours by early 1991. [18] As of 2024 the AH-64E is being produced at an economical rate of 82 aircraft a year.