By N. Bowditch
Read or Download American Practical Navigator PDF
Similar outdoor recreation books
A lifelong urban dweller, Verena Andermatt Conley had lengthy harbored romantic beliefs in regards to the wildlife and dreamed of a desert retreat for herself and her husband, Tom. whilst a large tract of land alongside the Vermillion River at the fringe of Minnesota's Boundary Waters - entire with primitive log cabins - grew to become to be had, they jumped on the probability to possess a bit of paradise.
1 best-selling consultant to Thailand's Islands & shores* Lonely Planet's Thailand's Islands & shores is your passport to the main appropriate, up to date suggestion on what to determine and pass, and what hidden discoveries watch for you. Climb karst formations over emerald seas in Railay, island-hop around the Andaman or sip cocktails on smooth white sand; all along with your relied on go back and forth better half.
The hot Shooter’s Bible consultant to Knives units the traditional for accomplished guides via wearing at the Shooter’s Bible culture of bringing jointly extra items and knowledge than the other resource. With images and outlines of greater than four hundred knives, readers are handled to product highlights from significant brands and customized knife makers.
Bicycling colossal e-book of teaching is an encouraging, centred education publication that may communicate to newbie and intermediate cyclists with out making them believe like beginners. It covers the entire info the reader must commence an efficient education routine. The e-book is split into 5 sections which are then damaged into miniguides for numerous biking education disciplines.
- Experiencing the Outdoors: Enhancing Strategies for Wellbeing
- Secrets of the Snow: Visual Clues to Avalanche and Ski Conditions
- The Rut Hunters
- The Defence of Passing On
- Go Scuba Dive (GO SERIES)
- Scouting For Girls, Official Handbook of the Girl Scouts
Extra resources for American Practical Navigator
The standard parallel, where the cone is tangent to the earth, appears as the arc of a circle with its center at the apex of the cone. The other parallels are concentric circles. The distance along any meridian between consecutive parallels is in correct relation to the distance on the earth, and, therefore, can be derived mathematically. The pole is represented by a circle (Figure 312b). The scale is correct along any meridian and along the standard parallel. All other parallels are too great in length, with the error increasing with increased distance from the standard parallel.
The tangent great circle is the fictitious equator. Ninety degrees from it are two fictitious poles. A group of great circles through these poles and perpendicular to the tangent great circle are the fictitious meridians, while a series of circles parallel to the plane of the tangent great circle form the fictitious parallels. The actual meridians and parallels appear as curved lines. A straight line on the transverse or oblique Mercator projection makes the same angle with all fictitious meridians, but not with the terrestrial meridians.
The ways of expressing the scale of a chart are readily interchangeable. 39 inches. If the natural scale of a chart is 1:80,000, one inch of the chart represents 80,000 inches of the earth, or a little more than a mile. 097. 1) miles to an inch. 9) inch to a mile. 39) = 1:4,374,803. A chart covering a relatively large area is called a small-scale chart and one covering a relatively small area is called a large-scale chart. Since the terms are relative, there is no sharp division between the two.