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3928754 |
Device for calculating the resonant rolling period of a ship
A computing device that measures the time between consecutive signals coming from a rolling time gauge that gives a signal every time the ship starts rolling from one direction. The time measured...
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3914584 |
Wave energy translator
Instrumentation is described for providing indication of the effects of sea onditions on a submerged submarine in a hovering maneuver at a selected depth. The instrumentation comprises analog...
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3886887 |
System for controlling the position of a floating vessel
A system for controlling the position of a floating vessel consisting of propulsion apparatus capable of moving the vessel, a logic device controlling the propulsion apparatus, and position...
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3881095 |
System for evaluating sailboat performance
A system for evaluating the performance of a sailing boat wherein average boat speed, average apparent wind speed and average apparent wind direction are sensed and are utilized to determine the...
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3881094 |
Signal for evaluating sailboat performance
A system for evaluating sailboat performance comprising averaging circuits for producing average boat speed, average apparent wind speed and average apparent wind direction. Instantaneous values of...
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3875388 |
MODULAR SYSTEM FOR EVALUATING SAILBOAT PERFORMANCE
A system for evaluating sailboat performance wherein boat speed, apparent wind speed and apparent wind direction are sensed and utilized to determine the performance characteristics of sailing...
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3847348 |
ROLL COMPUTER
A ship mounted stabilizer roll tank is instrumented to generate signals icative of the tank moment. The ship is also instrumented to generate signals indicative of its actual roll. The measured...
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3824380 |
DEVICE FOR VARYING THE THRUST OF A PIVOTABLE SCREW ON A SHIP
A device is provided for varying the magnitude and direction of thrust of a pivotable screw on a ship having a drive means for the screw and a drive means for pivoting the screw. A pair of...
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3814910 |
SAILING COMPUTER
A computer and a method for sailing a boat to windward to obtain maximum velocity made good. A solution algorithm permitting linear relations and a single multiplier in computing velocity made...
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3800128 |
TRUE WIND SPEED COMPUTER
An analog computer for calculating and displaying in digital form the speed nd direction of true wind for a ship. Ship's speed and course and wind speed and direction are provided as inputs to a...
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3777122 |
PROCESS AND APPARATUS FOR THE AUTOMATIC CONTROL OF A VARIABLE
A control system for a variable wherein the maximum rate of change of the variable is controlled by limiting the error signal. The error signal is controlled so that the control system operates...
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3771483 |
APPARATUS AND METHOD FOR THE AUTOMATIC NAVIGATION OF A SAILING VESSEL
A navigation system for a sailing vessel which automatically sails the vessel from its present location to a destination location. The system responds to the prevailing wind conditions and...
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3715571 |
SHIP'S TURN RATE CONTROL SYSTEM
A conventional ship's steering system is modified to limit the degree of heeling during turns by limiting the centrifugal force developed during such turns. The present invention utilizes the fact...
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3676648 |
TURN HEEL LIMITING CIRCUIT
Heeling of a ship during a turning maneuver is restricted to a safe value in accordance with the ship's speed and heading rate. A limit computer accepts a signal indicative of the ship's speed and...
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3665168 |
ADAPTIVELY CONTROLLED POSITION PREDICTION SYSTEM
Ship's position predictor using sampled-data signal as input to a two-point predictor computer and having an adaptive correction system responsive to the predictor computer output for refining the...
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3603775 |
STEERING COMPUTER AND INDICATOR
A steering control system for automatically navigating a vehicle along a determined course having a reference station for supplying distance and timing data signals, signal generators for supplying...
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3594554 |
DEPTH CONTROL SYSTEM FOR UNDERWATER VEHICLE
A depth control system for an underwater vehicle having a pressure transdr for providing a frequency output proportional to depth and having means for comparing the measured depth with a preset...
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3576977 |
SYSTEM AND METHOD FOR CONTROLLING THE POSITIONING SYSTEM OF A PIPELAYING VESSEL
A system and method for controlling the movement, position and orientation of a pipelaying vessel in a manner designed to permit moving the vessel along a desired route while maintaining a desired...
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3571684 |
RUDDER POSITIONING UNIT FOR THE STEERING SYSTEMS OF SHIPS
A rudder positioning unit for the steering systems of ships serves to position the rudder at an angle proportional to a rudder positioning signal received by the unit, and comprises a balance...
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3301510 |
Method and apparatus for gage simulation in automatic control systems
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3296423 |
Average bearing rate computer and semi-automatic plotter
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3174030 |
Device for predicting values of a fluctuating system at a predetermined future time
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3128375 |
Apparatus for calculation of depth, trim, bending moment and shearing stress in a loaded ship
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