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China Airlines Flight 006 was a daily non-stop international passenger flight from Taipei to Los Angeles International Airport.On February 19, 1985, the Boeing 747SP operating the flight was involved in an aircraft upset accident, following the failure of the No. 4 engine, while cruising at 41,000 ft (12,500 m).
Air Canada Flight 797, another aircraft fire on the ground. South African Airways Flight 295 , another accident where a fire ignited onboard in the cargo hold which brought down the flight. UPS Airlines Flight 6 , another case where toxic materials, in this case damaged lithium-ion batteries , ignited a fire that brought down the flight.
A brake overheat warning system would have warned the crew that there was a problem. However, no such system was required on this type of aircraft, so Flight 420's crew had no idea that a fire had developed. The fire then ruptured the aircraft's hydraulic line, located near the wheel well, which caused the fire to intensify. [1]: 29-33
The phrase, "let's roll" has been used as early as 1908 in the cadence song now called "The Army Goes Rolling Along", which likely extended into tank usage. "The Roads Must Roll", a science fiction story written in 1940 by Robert A. Heinlein, mentions a re-worded version of "The Roll of the Caissons" called "Road Songs of the Transport Cadets".
The critical rollover angle is 5°-8°. Once exceeded, main rotor thrust continues the roll, and recovery via cyclic control is impossible. [1] A helicopter is susceptible to a rolling tendency, called dynamic rollover, when close to the ground, especially when taking off or landing. For dynamic rollover to occur, some factor has to first cause ...
An uncontrolled wildfire in the San Bernardino National Forest forced mandatory evacuations in Running Springs and Arrowbear Lake.
The position of all three axes, with the right-hand rule for describing the angle of its rotations. An aircraft in flight is free to rotate in three dimensions: yaw, nose left or right about an axis running up and down; pitch, nose up or down about an axis running from wing to wing; and roll, rotation about an axis running from nose to tail.
This can produce an overpowering sensation that the aircraft is rolling, pitching, and yawing all at the same time, which can be compared with the sensation of rolling down a hillside. [11] This illusion can make the pilot quickly become disoriented and lose control of the aircraft. [4]: 5 [12]