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A trolling motor is a self-contained marine propulsion unit that includes an electric motor, propeller and control system, and is affixed to an angler's boat, either at the bow or stern. A gasoline-powered outboard used in trolling , if it is not the vessel's primary source of propulsion, may also be referred to as a trolling motor.
The newly available micro-sized motors and batteries developed for cellular telephones made it possible to build an electric-powered, radio-controlled version. Mr. Frawley has since earned a degree in aerospace engineering from Embry-Riddle Aeronautical University and now works for WowWee. [ 2 ]
A mass-produced radio-controlled yacht In 1898, Tesla demonstrated a radio-controlled boat (U.S. patent 613,809 —Method of an Apparatus for Controlling Mechanism of Moving Vehicle or Vehicles). A radio-controlled boat is a boat or ship model controlled remotely with radio control equipment.
Uncrewed surface vessels vary in size from under 1 metre LOA to 20+ metres, with displacements ranging from a few kilograms to many tonnes, so propulsion systems cover a wide range of power levels, interfaces and technologies. Interface types (broadly) in order of size/power: PWM-controlled Electronic Speed Controllers for simple electric motors
A remote manipulator, also known as a telefactor, telemanipulator, or waldo (after the 1942 short story "Waldo" by Robert A. Heinlein which features a man who invents and uses such devices), [1] is a device which, through electronic, hydraulic, or mechanical linkages, allows a hand-like mechanism to be controlled by a human operator.
The crew used remote-controlled vessels to film and photograph the USS Yorktown, as well as the wreckage of the Japanese Imperial Navy’s Akagi and Kaga.
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