This navigation tool is versatile and can be used to lay off a course or a bearing, measure distance between any two points, plot a position on a chart from a given set of coordinates, or determine the coordinates of a position on a chart. It is an update
At Hummingbird, innovation is the core of everything we do. The new HELIX Series is no exception-delivering our full array of technologies, including the intuitive REFLEX interface, precise Broadband CHIRP, incredible Imaging SONAR and the mapmaking power of Auto Chart Live. Fueled by DNA that is unmistakably Hummingbird, the HELIX Series also features a jaw-dropping industrial design. From top to bottom, it's plain to see that finding fish runs in this family. HELIX 5 CHIRP GPS G2 | HELIX 5 Series | 410210-1 The HELIX 5 CHIRP GPS G2 with our new user interface and operating system, features a brilliant 800H x 480V, 5" 256 color display with backlight. CHIRP Dual Beam PLUS sonar with 4000 watts PTP power output, Precision Internal GPS Chart plotting with built-in Anima cartography with a micro SD card slot for optional maps or for saving waypoints. Maximize your angling experience with the Hummingbird HELIX 5 CHIRP GPS G2 fish finder system. CHIRP Frequencies (Out of Box Transducer) 83 kHz: 75-95 kHz 200 kHz: 175-225 kHz Maximum Depth: 1500 feet CHIRP Frequencies (Optional Purchase Transducer) Low: 28-75 kHz Med: 75-155 kHz High: 130-250 kHz 83/200: 75-155/130-250 50/200: 28-75/130-250 Maximum Depth: 2500 feet
This triangle is inscribed with black markings. Using two 45 triangles provides an easy method of plotting and performing chart work. With its protractor scales, the triangle is easily aligned in any direction with a chart meridian. Direction is maintain
Often used in a combination of two, our Protractor Triangle with Handle provides a straightforward method of plotting and performing chart work. Each triangle is inscribed with contrast enhancing colors (red & black), plus a handle that holds a pencil, making it convenient and easy to use. The protractor scale on the triangle can aid in drawing a bearing line on a chart, and the 90° angle is helpful when determining lines of position. When used in pairs, the second triangle acts as an extension, and the pair together are a reliable means to transfer a directional line on a chart with no slippage.
Heavy duty, crystal clear acrylic construction is the foundation for this simple to use, professional plotting aid. Arms are rigid enough to trace a bearing line. Can be used to position and chart from three identifiable shore, landmark, or buoy locations
Accurate and durable milled 15 acrylic ruler with marine aluminum arms and handles. 0.12 inch thickness. Wt. 5 oz.
The Weems & Plath Compute-A-Course is a compact, multi-purpose plotting tool. Ideal for general boating or commercial use. The Compute-A-Course¿ can be used for position fixing, course plotting, and distance measurements with the included scales. Using th
This plain edge protractor is suitable for plotting courses and bearings. Notations can be made directly on the matte plastic surface with a pencil. Constructed of durable, transparent plastic. Instructions included. Dims: 5 square. Wt. 2 oz.
The Basic Navigation Set provides the essential navigation instruments required for basic navigation, such as finding position, range, and bearing to a destination. The set, packaged in a clear, reusable plastic case, includes four tools; the Weems Protractor (255) (an updated version of Breton and Portland plotters), a parallel rule (145) for finding bearing and direction, a 6-inch divider (262) for measuring distance plus a navigation pencil.
Using a navigational protractor to lay off a course