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  2. Approach and departure angles - Wikipedia

    en.wikipedia.org/wiki/Approach_and_departure_angles

    Approach (α) and departure angle (β) of a vehicle. Approach angle is the maximum angle of a ramp onto which a vehicle can climb from a horizontal plane without interference. [1] It is defined as the angle between the ground and the line drawn between the front tire and the lowest-hanging part of the vehicle at the front overhang.

  3. Helicopter height–velocity diagram - Wikipedia

    en.wikipedia.org/wiki/Helicopter_height...

    The H/V curve also contains a take-off profile, indicating how a pilot can start from 0 height and 0 speed, and safely traverse to cruise. At low heights with low airspeed, such as a hover taxi, the pilot can simply cushion the landing with collective by converting rotational inertia into lift. Conversely, a complete power loss, and resultant ...

  4. Airfield traffic pattern - Wikipedia

    en.wikipedia.org/wiki/Airfield_traffic_pattern

    Upon each landing, depending on the runway distance remaining, aircraft and pilot capabilities, noise abatement procedures in effect, and air traffic control clearance, the pilot will perform either a full stop landing (taxi to the runway beginning for subsequent take-off), a touch-and-go (stabilize in the landing roll, reconfigure the aircraft ...

  5. Breakover angle - Wikipedia

    en.wikipedia.org/wiki/Breakover_angle

    β° = Breakover angle; C = Underside of chassis; W = Wheel; G = Ground; M = Midpoint of wheelbase Example of a vehicle at a significant breakover angle.. Breakover angle or rampover angle is the maximum possible supplementary angle (usually expressed in degrees) that a vehicle, with at least one forward wheel and one rear wheel, can drive over without the apex of that angle touching any point ...

  6. Ride height - Wikipedia

    en.wikipedia.org/wiki/Ride_height

    Ride height or ground clearance is the amount of space between the base of an automobile tire and the lowest point of the automobile, typically the bottom exterior of the differential housing (even though the lower shock mounting point may be lower); or, more properly, to the shortest distance between a flat, level surface, and the lowest part ...

  7. Takeoff - Wikipedia

    en.wikipedia.org/wiki/Takeoff

    An F/A-18 taking off from an aircraft carrier An Embraer E175 taking off. Takeoff is the phase of flight in which an aerospace vehicle leaves the ground and becomes airborne. For aircraft traveling vertically, this is known as liftoff.

  8. Aircraft flight dynamics - Wikipedia

    en.wikipedia.org/wiki/Aircraft_flight_dynamics

    angle of attack α: angle between the x w,y w-plane and the aircraft longitudinal axis and, among other things, is an important variable in determining the magnitude of the force of lift; When performing the rotations described earlier to obtain the body frame from the Earth frame, there is this analogy between angles: β, ψ (sideslip vs yaw)

  9. Autorotation - Wikipedia

    en.wikipedia.org/wiki/Autorotation

    Each type of helicopter has a specific airspeed at which a power-off glide is most efficient. The best airspeed is the one that combines the greatest glide range with the slowest rate of descent. The specific airspeed is different for each type of helicopter, yet certain factors (density altitude, wind) affect all configurations in the same manner.