The Douglas DC-7 is a retired American transport aircraft built by the Douglas Aircraft Company from 1953 to 1958.

The Grand Canyon mid-air collision occurred in the western United States on June 30, 1956, when a United Airlines Douglas DC-7 struck a Trans World Airlines Lockheed L-1049 Super Constellation over Grand Canyon National Park, Arizona. The first plane fell into the canyon while the other slammed into a rock face.

On June 30, 1956, a TWA Lockheed Super Constellation collided with a United Air Lines Douglas DC-7 over the Grand Canyon. Both aircraft fell into the canyon. There were no survivors among the 128 persons aboard the flights.

June 30, 1956; A midair collision over the Grand Canyon involving TWA Super Constellation L-1049 N6902C, Star of the Seine and United Airlines DC-7 N6324C, City of Vancouver. Both planes departed Los Angeles International Airport within three minutes of each other on the morning of June 30th.

联合航空公司718航班，DC-7，（N6324C）在大峡谷（ TWA 2号航班） （L-1049 Super Contellation （N6902C））上碰撞，导致两架飞机的128人死亡。 1957年1月31日 在与 诺斯罗普F-89J Scorpion 52-1870的 空中碰撞之后，道格拉斯仍然由道格拉斯拥有的DC-7（N8210H） 坠入了 加利福尼亚州 ...

美国联合航空公司718航班，一架dc-7，在大峡谷与twa航班2，l-1049超级星座碰撞，导致两架飞机上的128人死亡。 1957年1月31日 在与Northrop F-89J Scorpion 52-1870的空中碰撞之后，DC-7（N8210H）在 加利福尼亚州 洛杉矶的Pacoima地区坠毁，导致DC-7上的四名机组人员死亡，包 …

2010年1月6日 · A Comparative Analysis of the L-1649 vs DC-7C WE suggested in our issue of November 5th last that the next generation of long-range airliners would be dominated by the Bristol Britannia and the various developments of the Douglas DC-7. The great British turboprop liner is developing very satisfactorily, and it is not proposed

TWA Flight 2, a Lockheed L-1049 Super Constellation, took off from Los Angeles (LAX) at 09:01 PST for an IFR flight to Kansas City (MKC). After reporting "on top" of the clouds at 2400 feet the crew contacted Los Angeles ARTCC. Clearance was given to climb to 19000 feet.

2025年3月15日 · The original DC-7 was largely based on the DC-6 (and the DC-4 before that), with the same wingspan but a 40-inch (100 cm) fuselage stretch. ... Los Angeles route, thereby inaugurating the first non-stop (both ways) coast-to-coast service, and forcing rival TWA to offer a similar service with its Super Constellations.

2024年6月30日 · The DC-7’s left wing was so badly damaged that it went into an uncontrolled left spin and crashed at Chuar Butte. All 128 persons on the two airliners were killed. This, as well as other accidents, resulted in significant changes in the United States air traffic control system.