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The forward propeller stopped rotating but due to the nature of the failure the aft propeller kept turning, producing negative thrust. At this point the flight crew increased power to the remaining three engines but a problem with the RPM sensors on one of them led to automatic engine shut-off.
The clockwise-turning propeller is by far the most common. The yaw is noticeable when adding power, though it has additional causes including the spiral slipstream effect. In a fixed-wing aircraft, there is usually no way to adjust the angle of attack of the individual blades of the propellers, therefore the pilot must contend with P-factor and ...
To eliminate the critical engine problem, counter-rotating propellers usually turn "inwards" towards the fuselage – clockwise on the left engine and counterclockwise on the right – however, there are exceptions (especially during World War II) such as the P-38 Lightning which turned "outwards" (counterclockwise on the left engine and ...
The propeller problem is the second setback for the Royal Navy in less than three weeks, following a collision by two warships in a harbor in Bahrain, causing damage to the vessels but no injuries.
That procedures regarding propellers be reviewed and improved so as to identify malfunctions on the ground; That more emphasis be placed on training pilots and flight engineers in procedures for handling propeller problems; That there should be better follow-up of maintenance problems; and; That escape exits and tunnels should be kept clear of ...
Propeller walk (also known as propeller effect, wheeling effect, paddle wheel effect, asymmetric thrust, asymmetric blade effect, transverse thrust, prop walk) is the term for a propeller's tendency to rotate about a vertical axis (also known as yaw motion). The rotation is in addition to the forward or backward acceleration.
Broke up 1919-08-02 Airliner crash at Verona: Italy Caproni Ca.48: Wing flutter followed by wing collapse 14, 15, or 17 (sources vary) The crash killed all aboard 1921-08-23 1921 Humber crash UK: Hull: R38 (ZR-2) Weather combined with weakened hull 44 Deformation followed by fire & explosion 1925-09-03 Crash of the USS Shenandoah: Caldwell ...
In a propeller aircraft, an overspeed will occur if the propeller, usually connected directly to the engine, is forced to turn too fast by high-speed airflow while the aircraft is in a dive, moves to a flat blade pitch in cruising flight due to a governor failure or feathering failure, or becomes decoupled from the engine.