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The Grand Canyon mid-air collision occurred when Grand Canyon Airlines Flight 6, a de Havilland Canada DHC-6 Twin Otter, collided with a Bell 206 helicopter, Helitech Flight 2, over Grand Canyon National Park on June 18, 1986. All 25 passengers and crew on board the two aircraft were killed.
Some trees (for example maple trees) have seeds that have wing-like structures that enable the seed to spin to the ground in autorotation, which helps the seeds to disseminate over a wider area. The most common use of autorotation in helicopters is to safely land the aircraft in the event of an engine failure or tail-rotor failure.
By the early 1990s, 20,000 people per year made the journey into the canyon by mule, 800,000 by hiking, 22,000 passed through the canyon by raft, and another 700,000 tourists fly over it in air tours (fixed-wing aircraft and helicopter). Overflights were limited to a narrow corridor in 1956 after two planes crashed, killing all on board.
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On June 18, 1986, Grand Canyon Airlines Flight 6, a de Havilland Canada DHC-6-300 (N76GC) of the airline collided with a Bell 206 JetRanger helicopter operated by Helitech Helicopters. Both aircraft were operating scenic air tour flights over the Grand Canyon when the collision occurred near Crystal Rapids.
Location: Coconino and Mohave counties, Arizona, United States: Nearest city: Fredonia, Arizona (North Rim) Tusayan, Arizona (South Rim): Coordinates: 2]: Area: 1,217,262 acres (4,926.08 km 2) [3]: Established: January 11, 1908 () as a national monument February 26, 1919 () as a national park: Visitors: 4,733,705 (in 2023) [4]: Governing body: National Park Service: Website: nps.gov /grca ...
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