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The first known outboard motor was a small 11 pound (5 kg) electric unit designed around 1870 by Gustave Trouvé, [9] and patented in May 1880 (Patent N° 136,560). [10] Later about 25 petrol powered outboards may have been produced in 1896 by American Motors Co [9] —but neither of these two pioneering efforts appear to have had much impact.
An auto tachometer has a sweep of about 240-250 degrees and typically uses an air core gauge. An air core gauge is a specific type of rotary actuator in an analog display gauge that allows an indicator to rotate a full 360 degrees. It is used in gauges and displays, most commonly automotive instrument clusters.
NMEA 2000, abbreviated to NMEA2k or N2K and standardized as IEC 61162-3, is a plug-and-play communications standard used for connecting marine sensors and display units within ships and boats. Communication runs at 250 kilobits-per-second and allows any sensor to talk to any display unit or other device compatible with NMEA 2000 protocols.
A tachometer (revolution-counter, tach, rev-counter, RPM gauge) is an instrument measuring the rotation speed of a shaft or disk, as in a motor or other machine. [1] The device usually displays the revolutions per minute (RPM) on a calibrated analogue dial, but digital displays are increasingly common.
Today, analog effects are also considered outboard when used in conjunction with console-free computer-based digital recording systems. [ 3 ] Famous examples include analog dynamic range compressors, such as the Teletronix LA-2A and the Universal Audio/UREI 1176 , early multi-effects units like those made by Eventide , and physical or digital ...
MAP sensors measure absolute pressure. Boost sensors or gauges measure the amount of pressure above a set absolute pressure. That set absolute pressure is usually 100 kPa. This is commonly referred to as gauge pressure. Boost pressure is relative to absolute pressure - as one increases or decreases, so does the other.
The tach timer is usually used to schedule engine maintenance, although it is just an approximation of "Time in service" which is used to time and schedule aircraft maintenance. Time in service is defined in 14 CFR 1.1 [ 2 ] as the actual time in the air, whereas tach time measures engine revolutions, which would still count time on the ground ...
Mercury Marine is a marine engine division of Brunswick Corporation headquartered in Fond du Lac, Wisconsin. The main product line is outboard motors . It also produces the MerCruiser line of sterndrives and inboard engines , as well as a lineup of electric outboard motors.
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