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Los Angeles Airways (LAA) Flight 417, piloted by Captain Kenneth Lee Waggoner, former USMC helicopter pilot, was a regularly scheduled passenger flight from Los Angeles International Airport to the Disneyland Heliport in Anaheim, California. The aircraft and crew had completed three round trips to various destinations in the Greater Los Angeles ...
This three-engined helicopter has a single large main rotor and smaller tail rotor. On a helicopter, the main rotor or rotor system is the combination of several rotary wings (rotor blades) with a control system, that generates the aerodynamic lift force that supports the weight of the helicopter, and the thrust that counteracts aerodynamic ...
When a helicopter is being maneuvered, its disk loading changes. The higher the loading, the more power needed to maintain rotor speed. [3] A low disk loading is a direct indicator of high lift thrust efficiency. [4] Increasing the weight of a helicopter increases disk loading. For a given weight, a helicopter with shorter rotors will have ...
The Landgraf H-2 was an American single-seat twin-rotor helicopter designed by Fred Landgraf and built by the Landgraf Helicopter Company of Los Angeles, California. Although awarded a development contract by the United States Army, it was not developed and was overtaken by more advanced designs.
The TAIC report noted that "Helicopters with semirigid, two-bladed main rotor systems, as used on Robinson helicopters, are particularly susceptible to mast bumping in "low-G" conditions". In 2018, a U.S. lawsuit accused the Robinson Helicopter Company of defective manufacturing after a mast-bumping event caused the in-flight breakup of an R66 ...
The accident aircraft, N303Y, serial number 61060, was a Sikorsky S-61L en route to Los Angeles International Airport from the Disneyland Heliport in Anaheim, California. On 14 August 1968, Los Angeles Airways Flight 417 crashed in Compton, California, while en route to the Disneyland Heliport in Anaheim, California from Los Angeles ...
In January 1949, a Sikorsky S-51 crashed off the terminal annex post office in Downtown Los Angeles, killing pilot Harry Slemmons, 27. [10]On July 2, 1951, a Sikorsky S-51 crashed in an orange grove between Pomona, California and Ontario, fatally injuring pilot John De Blau, 29, and civil aeronautics inspector, Wyman Ellis Jr., 44, both of Los Angeles.
Coning is a phenomenon which affects helicopter rotor discs, where the blades describe a cone shape as they rotate. For a helicopter on the ground, as the blades rotate, they describe a horizontal disc due to centrifugal force. However, as the helicopter generates lift, the blades are pulled upwards into a cone shape. [1] [2] [3]