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Control knob. Two control knobs for a heating/cooling system. The left knob controls the temperature while the right controls the fan speed. A control knob is a rotary device used to provide manual input adjustments to a mechanical / electrical system when grasped and turned by a human operator, so that differing extent of knob rotation ...
In aviation, an electronic flight instrument system ( EFIS) is a flight instrument display system in an aircraft cockpit that displays flight data electronically rather than electromechanically. An EFIS normally consists of a primary flight display (PFD), multi-function display (MFD), and an engine indicating and crew alerting system (EICAS ...
A rotary dial is a component of a telephone or a telephone switchboard that implements a signaling technology in telecommunications known as pulse dialing. It is used when initiating a telephone call to transmit the destination telephone number to a telephone exchange . On the rotary dial, the digits are arranged in a circular layout, with one ...
It is powered by an original Le Rhône 110 HP rotary engine, and the aircraft can be seen flying at home air displays during the summer months. [33] Museo Nacional Aeronáutico y del Espacio at Los Cerrillos, Santiago de Chile has two replicas in its collection. The first one (intended to be airworthy) was built in UK bu AJD engineering in 1989 ...
The rotary engine is an early type of internal combustion engine, usually designed with an odd number of cylinders per row in a radial configuration. The engine's crankshaft remained stationary in operation, while the entire crankcase and its attached cylinders rotated around it as a unit.
Pratt & Whitney R-985 Wasp Junior. The Pratt & Whitney R-1340 Wasp is an aircraft engine of the reciprocating type that was widely used in American aircraft from the 1920s onward. It was the Pratt & Whitney aircraft company's first engine, and the first of the famed Wasp series. It was a single-row, nine- cylinder, air-cooled, radial design ...
Rotary valve. A rotary valve in default (A) and engaged (B) positions. 1. input airflow; 2. output airflow; 3. valve tubing; 4. valve casing; 5. internal rotor; 6. valve ports, or "knuckles"; 7. rotor spindle. A rotary valve (also called rotary-motion valve) is a type of valve in which the rotation of a passage or passages in a transverse plug ...
Rotary International is the organization of service clubs with the largest membership in the world, with 1.9 million volunteers, including all the members of clubs that make up the Rotary family, namely Rotary, Interact and Rotaract clubs. History.