Search results
Results from the WOW.Com Content Network
Visual Glide Slope Indicator or Visual Glideslope Indicator (VGSI) is a ground device that uses lights to assist a pilot in landing an airplane at an airport.The lights define a vertical approach path during the final approach to a runway and can help the pilot determine if the airplane is too high or too low for an optimum landing.
Drafting pantograph in use Pantograph used for scaling a picture. The red shape is traced and enlarged. Pantograph 3d rendering. A pantograph (from Greek παντ- ' all, every ' and γραφ- ' to write ', from their original use for copying writing) is a mechanical linkage connected in a manner based on parallelograms so that the movement of one pen, in tracing an image, produces identical ...
This means that the top of the Ampelmann remains completely stationary compared to the structure. The offshore gangway can then be extended towards the structure, so all personnel can walk to work offshore safely, even in high wave conditions. The system operates at maximum windspeed of 20 m/s or 38 knots.
Dial test indicators, whose tips swing in an arc rather than plunging linearly, usually have spherical tips. This shape gives point contact, allowing for consistent measurements as the tip moves through its arc (via consistent offset distance from ball surface to center point, regardless of ball contact angle with the measured surface). Several ...
A variation of the yaw string is the side string, used in gliders for a determination of the angle of attack. In this way the speed for best glide angle, the best thermalling speed and the stall speed can be observed independently of other parameters like air speed, aircraft weight, acceleration due to turning, stick movements, and gusts. [18]
Gangway (nautical), a passage between the quarterdeck and the forecastle of a ship, and by extension, a passage through the side of a ship, an opening in the railing, or an articulated bridge or ramp, through which she may be boarded
The port and starboard gangways of the Duquesne can be seen at the right and left of the ship's boats. The port side is fully careened, while the starboard side shows the inner structure of the woodwork. A gangway is a narrow passage that joins the quarterdeck to the forecastle of a sailing ship. The term is also extended to mean the narrow ...
A plan position indicator (PPI) is a type of radar display that represents the radar antenna in the center of the display, with the distance from it and height above ground drawn as concentric circles. As the radar antenna rotates, a radial trace on the PPI sweeps in unison with it about the center point.