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The concept is illustrated in Figure 3 (to be uploaded). [3] A diffraction grating breaks the incoming light into a spectrum. A software controlled binary liquid crystal stack, individually tilts each optical channel and a second grating (or a second pass of the first grating) is used to spectrally recombine the beams.
Watercraft navigation lights must permit other vessels to determine the type and relative angle of a vessel, and thus decide if there is a danger of collision. In general, sailing vessels are required to carry a green light that shines from dead ahead to 2 points (22 + 1 ⁄ 2 °) abaft [note 1] the beam on the starboard side (the right side from the perspective of someone on board facing ...
[1] [3] The boat may be optionally fitted with an inboard motor for docking and maneuvering. The fresh water tank has a capacity of 26 U.S. gallons (98 L; 22 imp gal). [1] [3] The design has a PHRF racing average handicap of 75 with a high of 81 and low of 69. It has a hull speed of 7.05 kn (13.06 km/h). [5] [3]
The primary advantage of adjusting the cunningham is the speed and ease with which the luff tension can be changed while sailing or racing. By either hauling or easing the line, the tension in the luff can be changed, thereby shifting the point of maximum draft of the sail forward or aft respectively, optimizing sail shape and thus performance ...
A sail switch, vane switch or flow switch is a mechanical switch that is actuated on or off in response to the flow or non-flow of a fluid such as air or water. [1] A sail switch typically operates through the use of a paddle or a diaphragm which gets displaced due to the force of fluid or air moving past it.
Figure 1. The light path through a Michelson interferometer.The two light rays with a common source combine at the half-silvered mirror to reach the detector. They may either interfere constructively (strengthening in intensity) if their light waves arrive in phase, or interfere destructively (weakening in intensity) if they arrive out of phase, depending on the exact distances between the ...
The boat has a draft of 5.33 ft (1.62 m) with the fiberglass centerboard extended and 1.93 ft (0.59 m) with it retracted, allowing beaching or ground transportation on a trailer. [ 1 ] The boat is normally fitted with a small 3 to 6 hp (2 to 4 kW) outboard motor for docking and maneuvering.
The Bombardier 3.8 is a recreational sailboat, built predominantly of fibreglass. It has an unstayed catboat rig, a raked stem , vertical transom , a wooden transom-hung rudder controlled by a tiller and a wooden daggerboard keel.