A wheel, usually with radial handles projecting from the rim, for traversing the saddle of a machine tool, especially an automatic machine tool, by hand.

A proof of concept; an initial prototype.

(film, television) A film, miniseries, or episode that serves as a proof of concept for a new full television series, but may be broadcast on its own even if the full series does not come to fruition.

A large species of dolphin, Globicephala melas, of the North Atlantic and Southern Ocean.

(meteorology) A method of winds-aloft observation, temperature, and relative humidity of the upper that is, the determination of wind speeds and air and to automatically transmit that directions in the atmosphere above a station. This is done by reading the elevation and azimuth angles of a theodolite (instrument) observation while visually tracking a pilot balloon. The ascension rate of the balloon is approximately determined by careful inflation to a given total lift. After release from the ground, periodic readings (usually at one-minute intervals) of elevation and azimuth angles of the balloon are recorded. These data are transferred to a winds-aloft plotting board, and wind speed and direction at selected levels are calculated by trigonometric methods.

plural of pilot balloon observation

plural of sky pilot

plural of yard pilot

plural of cock pilot

plural of desk pilot