Abstract: A wireless hoist system including a first hoist device having a first motor and a first wireless transceiver and a second hoist device having a second motor and a second wireless transceiver. The wireless hoist system includes a controller in wireless communication with the first wireless transceiver and the second wireless. The controller is configured to receive a user input and determine a first operation parameter and a second operation parameter based on the user input. The controller is also configured to provide, wirelessly, a first control signal indicative of the first operation parameter to the first hoist device and provide, wirelessly, a second control signal indicative of the second operation parameter to the second hoist device. The first hoist device operates based on the first control signal and the second hoist device operates based on the second control signal.

Abstract: A three-sided wind scoop is provided for aerating and cooling the interior of a sailboat. The wind scoop comprises three flexible rectangular shaped panels, one side of each panel being joined together to form a center seam; the top of each said three panels being attached in an equal angel Y-shaped configuration to an essentially circular flexible fabric which forms a cap or top cover for said wind scoop. The Y-shaped configured panels of the wind scoop are designed to capture the wind and the direct the flow of air down into the boat regardless of the direction of the wind in relation to the boat and the cap of the wind scoop is designed to capture the wind flowing upward from said Y-shaped configured panels and direct it back downward, thereby adding to and facilitating the downward flow of the air.

Abstract: The present invention discloses an analysis procedure which permits the calibration of airborne thermal infrared systems to absolute ground temperature and the removal of variations due to slant angle without the need for ground measurements. Absolute ground temperature are extrapolated from data taken at a plurality of altitudes over a selected reference point.