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If a spiral dive is entered unintentionally, the result can be fatal. A spiral dive is not a spin; it starts, not with a stall or from torque, but with a random perturbation, increasing roll and airspeed. Without prompt intervention by the pilot this can lead to structural failure of the airframe, either as a result of excess aerodynamic ...
A spiral dive is not a type of spin because neither wing is stalled. In a spiral dive, the aircraft responds conventionally to the pilot's inputs to the flight controls, and recovery from a spiral dive requires a different set of actions from those required to recover from a spin. [2]
Graveyard spiral. In aviation, a graveyard spiral is a type of dangerous spiral dive entered into accidentally by a pilot who is not trained or not proficient in flying in instrument meteorological conditions (IMC). [1] Other names for this phenomenon include suicide spiral, deadly spiral, death spiral and vicious spiral. [2]
Stiff winds blew over Canada’s Toronto Pearson Airport Monday afternoon as a slim aircraft and its 80 passengers and crew drifted toward the snowy tarmac, cleared by air traffic controllers to ...
[2]: 2 During the course of the dive, the plane rolled through 360 degrees at least twice and exceeded the Mach limit for the 727 airframe. At about 15,000 feet (4,600 m) the pilots extended the landing gear in an attempt to slow the aircraft. A few seconds after extending the gear, Gibson managed to regain control and pulled the 727 out of its ...
The three axes of rotation in an aircraft. Flight dynamics is the science of air vehicle orientation and control in three dimensions. The three critical flight dynamics parameters are the angles of rotation in three dimensions about the vehicle's center of gravity (cg), known as pitch, roll and yaw.
If the spiral mode is stable, the aircraft will slowly return to wings-level, if it is unstable, the aircraft will slowly diverge from wings-level. Dihedral effect and yaw stability are the two primary factors that affect the stability of the spiral mode, although there are other factors that affect it less strongly.
The defensive spiral is a maneuver used by the defender when the kinetic energy becomes depleted and other last-ditch maneuvers can not successfully be implemented. The maneuver consists of dropping the nose low during the turn and going into a spiral dive, using gravity to supply the energy needed to continue evasive action.