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Basic Navigation for the Beginner (Pub. No. 5193)

by Elbert Robberson

"Navigation? Who needs it! I've just got a small boat, and I'm just going to splash around the bay. I'll be in sight of land the whole time." Then a squall makes up, or fog drops a curtain all around. Sure, you know where land is--but exactly which directions should you steer to get there? And how about those rocks along the shore? . . . .Anyone operating a boat, no matter what its size, needs to know some navigation--must be able to determine position and plto the course and time toa  desitnation. Fortunately, anyone can do this. With or without the help of a nautical almanac or a sextant, fog or no fog. Here--minus the trapping of astronomy, azimuths and hyperbolic functions--is all thenavigation you need to know.

20 pages

Make the Rabl Simplified Sextant (Pub. No. 5196)

With this easily constructed instrument you can learn the fundamentals of navigation

by Sam Rabl

When an article on shooting the sun and stars with a sextant appeared in the last edition of How to build 20 Boats, many of our readers became interested in the sextand and its use. The instrument has many uses other than navigation, and while the regular dextant is beyond the capabilities of the home workshop, the one described here will do most of the proefessional sextant's tricks. It is made from very ordinary materials, most of which can be found around the home.

12 pages

Finding One's Way at Sea (Pub. No. 5509)

by Jack London

reprinted from Harper's Weekly (ca. 1920)

The "Snark" started on her long voyage without a navigator. We beat out through the Golden Gate on April 23, and headed for the Hawaiian Islands, twenty-one hundred sea miles away as the sea-gull flies. And the outcome was our justification. We arrived. And we arrived, you shall see . . . that is, without any trouble to amount to anything.

8 pages

How to Make a Sextant (Pub. No. 5572)

From everyday materials. Two designs by W.E. Partridge and Sam Rabl

From the Partridge Article: "Owing to the increase of offshore racing and cruising the practice of navigation has begun to interest numbers of yachtsmen, and the study of the art is becoming a popular form of amusement. But in order to thoroughly study the art, it is necessary to have certain tools, the chief of which being what is called a sextant or  quadrant, an instrument employed to measure angles. The whole science of navigation is based upon the measurement of angles. But unfortunately these instruments are, owing to delicacy of construction, extremely expensive, especially in the United States, where their manufacture is heavily taxed. This prevents the average young yachtsman from having one. Had he such an instrument he would soon become familiar with its use and find the employment of it giving added pleasure to his voyaging. It is impossible to make a cheap sextant that can be relied upon to give accurate service under all conditions, especially if the frame is of wood, as the expansion and contraction of the material will affect the reading of the arc to the extent of several minutes, if not degrees. And it is not to be expected that one built from these plans will successfully compete with a Kew certificate machine, but by making and using it, you will thoroughly learn what a sextant is  and how it is employed. " Includes full-size plate for vernier.

58 pages, 1 plate(s)

Hoke Method in Practice, The (Pub. No. 5877)

by Lieut. Commander H.G Hemingway, U.S.C.G.

A useful method of compass adjustment.

14 pages

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