Sextants are used to measure angular heights of celestial bodies above the horizon to find the latitude and longitude of the observer. They can also be used on land with artificial horizons. Sextants can also be used to find the correct Universal Time by measuring the angular distance between the mo...

With Dr. William Forgey's comprehensive Wilderness Medicine: Beyond First Aid in hand, you can recognize, assess, and treat many kinds of medical emergencies. This fully revised and updated, illustrated text is essential reading for anyone from trip leaders, guides, and search and rescue groups to E...

This is a book about passion for a game.Describing the exciting and adventurous world surrounding geocaching--a worldwide hunt in which treasures are located using global positioning system (GPS) devices--this book offers an understanding and application of the principles and best practices of the g...

Written by locals, Fodor's travel guides have been offering expert advice for all tastes and budgets for 80 years. Whether a traveler's style is living large at a trend-setting resort or chilling on a secluded island with an icy cold beer in hand, the Bahamas has something for every taste, from all-...

Replacement pole light with led< br/> light: 10 Watt festoon lamp. Two mile 225 visibility. Horn: rating - 108 db (a) at one meter. Directs sound forward of vessel. Uses standard 2-1/4" and 1-1/4" hole saw for installing. LED Red task light with on/off switch. 4-1/2" L x 2-5/8" W x 3-3/32" D under d...

Alloy Propeller Prop Nut Cap for DJI Phantom 2 vision Brushless Motor 2212 920KV（DJI-PTM07）, also can work on DJI Phantom V1 Package Including: (as picture shows) 2x Red Prop fixed adapter (CW) 2x Black Prop fixed adapter (CCW)

The slim, lightweight design keeps it out of the way until needed, and the supplied C-Clip adapter for life jackets grips snugly around most oral inflation tubes. The intense strobe light is visible up to 2 miles (3.2 km). The waterproof and corrosion resistant case features a new attachment pin tha...

Standard Echomaster Radar Reflector#152Every boat needs a radar reflector. It helps ships see you in low-visibility conditions.The EchoMaster es in a plastic case and folds flat for easy storage and is made of stamped aluminum sheets with locking corner rivets. Echomaster radar reflectors return the...

An advanced navigation tool, the circular slide rule provides for the solution of time, speed and distance, fuel consumption, conversions, multiplication, and division. On the reverse, the face of the Vectormaster permits rapid solution of problems involv

John Morton offers a uniquely concise and practical guide to getting up and running with the PIC Microcontroller. The PIC is one of the most popular of the microcontrollers that are transforming electronic project work and product design, and this book is the ideal introduction for students, teacher...

This 14th edition (2016-2017) has been split into two guides, The Cruising Guide to the Northern Leeward Islands and The Cruising Guide to the Southern Leeward Islands. The Cruising Guide to the Northern Leeward Islands covers the islands of Anguilla, St. Martin & Sint Maarten, St. Barts, Saba, Stat...

Specifications: • Condition: Brand new • Package includes: One piece of Integrated Light • Voltage: DC 12V • Lens size(approx.): 4" (10cm) • Lens Color: Red • Case Color: Black • Bulb Wattage: 20W/10W（Incandescent Light Bulbs） • Cable Length: 9.8" (25cm) • Material: Incandescen...