Boat motor : electric in-board motor 250 hp
(shaft-drive) OSSA Powerlite

OSSA Powerlite® propulsion motors are the result of over 14 years of research in advanced permanent magnet motor technology by our parent company, Glacier Bay, Inc.. They have been developed specifically for use in yacht propulsion and do not require the use of a transmission or other gear reduction. Furthermore, they are available in a wide power range (20 hp - 800 hp) which eliminates need to use multiple motors and controllers on a single shaft to obtain the high power required for larger vessels. The motors have a flat torque curve, developing the rated torque from startup to maximum RPM. With efficiencies reaching 98.9%, OSSA Powerlite motors are among the most energy efficient rotating machines in the world.

Of course, any brushless DC motor is only as good as the the electronic controller which powers it. We are one of the few motor manufacturers to also design and build our own motor controllers. Since 1999, Glacier Bay has developed advanced BLDC motor controllers for the Defense Advanced Research Projects Agency (DARPA), Westinghouse, Northrop-Grumman, United Defense, Tecumseh Products and other high technology companies and governmental institutions. All OSSA Powerlite propulsion motor controllers use Digital Signal Processors (DSPs) to implement a space-vector commutation control strategy. Space-vector control represents the leading edge of motor control technology and has the advantage of maximizing motor torque and efficiency while minimizing acoustical noise.

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