Delta Air Lines Flight 191 was a regularly scheduled Delta Air Lines domestic service from Fort Lauderdale, Florida, to Los Angeles, California, with an intermediate stop at Dallas/Fort Worth International Airport (DFW). On August 2, 1985, the Lockheed L-1011 TriStar operating Flight 191 encountered a microburst while on approach to land at DFW. The aircraft impacted ground just over one mile (1.6 km) short of the runway, struck a car near the airport, collided with two water tanks and disintegrated. Out of the 163 occupants on board, 137 people died and 25 others were injured in the accident.
Delta Air Lines Flight 1141 was a scheduled domestic passenger flight between Dallas Fort Worth International Airport, Texas, and Salt Lake City International Airport, Utah. On August 31, 1988, the flight, using a Boeing 727-200 series aircraft, crashed during takeoff at Dallas Fort Worth International Airport, resulting in 14 deaths and 76 injuries among the 108 on board.
The AgustaWestland AW109, originally the Agusta A109, is a lightweight, twin-engine, eight-seat multi-purpose helicopter designed and initially produced by the Italian rotorcraft manufacturer Agusta. It was the first all-Italian helicopter to be mass-produced. Its production has been continued by Agusta's successor companies, presently Leonardo.
The Bell 206 is a family of two-bladed, single- and twin-engined helicopters, manufactured by Bell Helicopter at its Mirabel, Quebec, plant. Originally developed as the Bell YOH-4 for the United States Army's Light Observation Helicopter program, it was not selected by the Army. Bell redesigned the airframe and successfully marketed the aircraft commercially as the five-place Bell 206A JetRanger. The new design was eventually selected by the Army as the OH-58 Kiowa.
The Bell 407 is a four-blade, single-engine, civil utility helicopter. A derivative of the Bell 206L-4 LongRanger, the 407 uses the four-blade, soft-in-plane design rotor with composite hub developed for the United States Army's OH-58D Kiowa Warrior instead of the two-blade, semi-rigid, teetering rotor of the 206L-4.
The Bell 427 is a twin-engine, multirole, light utility helicopter designed and manufactured by Bell Helicopter and Samsung Aerospace Industries. It has been replaced in production by the larger Bell 429.
In aviation, a tailstrike or tail strike occurs when the tail or empennage of an aircraft strikes the ground or other stationary object. This can happen with a fixed-wing aircraft with tricycle undercarriage, in both takeoff where the pilot rotates the nose up too rapidly, or in landing where the pilot raises the nose too sharply during final approach, often in attempting to land too near the runway threshold. It can also happen during helicopter operations close to the ground, when the tail inadvertently strikes an obstacle.
The Bell 429 GlobalRanger is a light, twin-engine helicopter developed by Bell Helicopter and Korea Aerospace Industries. The first flight of the prototype took place on February 27, 2007, and the aircraft received type certification on July 1, 2009. The Bell 429 is capable of single-pilot IFR and Runway Category A operations.
Acadian Ambulance is an employee-owned private ambulance service that covers most of the state of Louisiana, a large portion of Texas, two counties in Tennessee, and one county in Mississippi. In 1995 it was recognized as the largest privately owned ambulance service in the United States. Today the company responds to emergency and non-emergency calls in Louisiana; Southeast, Central, and North Texas; Jackson County, Mississippi; Nashville and Memphis, Tennessee.
New England Life Flight, d/b/a Boston MedFlight, is a non-profit organization that provides emergency scene response and emergency interfacility transfer in Eastern Massachusetts at the Critical Care level using helicopters, fixed-wing aircraft, and ground ambulances.
Air ambulance services in the United Kingdom provide emergency medical functions, patient transport between specialist centres, or medical repatriation. Services are provided by a mixture of organisations, operating either helicopters or fixed-wing aircraft. All emergency air ambulance helicopters in England, Wales, and Northern Ireland are operated by charities, while Scotland has one charity service in addition to its two NHS-funded helicopters. Fixed-wing air ambulances, used for patient transport, may be government or privately operated. Air ambulance helicopters are complemented by Coastguard SAR helicopters.
Air Methods Corporation is an American privately owned helicopter operator. The air medical division provides emergency medical services to over 100,000 patients every year. It operates in 48 states with air medical as its primary business focus. Its corporate headquarters are located in the Denver Technological Center, Greenwood Village, Colorado, in the Denver metropolitan area.
Air ambulances in the United States are operated by a variety of hospitals, local government agencies, and for-profit companies. Medical evacuations by air are also performed by the United States Armed Forces and United States National Guard.
Air Evac EMS, Inc., operating as Air Evac Lifeteam and sometimes called simply Air Evac, is an American helicopter emergency medical service (HEMS) or air ambulance provider headquartered in O'Fallon, Missouri. It is the largest subsidiary of Global Medical Response, though still considered an independent provider. It is also the largest membership-supported air ambulance service in the US operating helicopters from 140 bases in 15 states, mostly in the central and southern regions of the country. While primarily a HEMS provider, it also operates 2 fixed-wing aircraft in Missouri and Kentucky.
Air medical services are the use of aircraft, including both fixed-wing aircraft and helicopters to provide various kinds of urgent medical care, especially prehospital, emergency and critical care to patients during aeromedical evacuation and rescue operations.
The Bell 525 Relentless is an American super-medium-lift helicopter, under development by Bell Textron. The Bell 525 was unveiled at the 2012 Heli-Expo in Dallas, Texas in February 2012. The helicopter first flew on 1 July 2015. It is designed to transport up to 19 passengers. The aircraft is the first fly-by-wire civilian aircraft and suffered a crash of its prototype, and is still slowly working towards certification. As of 2024, Bell is still working towards completing flight certification it has secured its first order.
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.
Travis County STAR Flight is the emergency helicopter service of Travis County, Texas. As an agency of the Travis County government, STAR Flight conducts air ambulance, technical rescue, firefighting, and law enforcement support missions. Its area of operations includes 19 surrounding counties.
The 2016 Bell 525 Relentless prototype crash occurred during a test flight on July 6, 2016, near Italy, Texas, destroying the prototype Bell 525 Relentless helicopter and killing the two occupants. The helicopter broke up in flight while traveling about 229 mph (199 kn) at an altitude of about 2,000 feet (610 m); the main rotor contacted and severed the tail boom due to severe vertical oscillations. The crew were performing one engine inoperative (OEI) recovery testing; the test induced a scissors-mode vibration in the main rotor, which resulted in involuntary collective control input. The unintended biomechanical feedback loop exacerbated the vibration, until the rotor contacted the tail-boom.
On November 12, 2022, two World War II–era aircraft, a B-17 Flying Fortress and a Bell P-63 Kingcobra, collided mid-air and crashed during the Wings Over Dallas air show at Dallas Executive Airport in Dallas, Texas, United States. The air show, which coincided with Veterans Day commemorations, was organized by the Commemorative Air Force.
