Parallel Rules
Parallel rulers are a drafting instrument used by navigators to draw parallel lines on charts. The tool consists of two straight edges joined by two arms ...
Parallel Rules - National Museum of American History
This brass parallel rule has a semicircular protractor attached to the top blade. The protractor is divided to degrees and marked by tens from 10 to 90 to 10. A ...
Parallel Rules - US Captains Training
Parallel Rules. $29.95. Of all Weems and Plath traditional parallel rulers, the 15 inch Brushed Aluminum Arm Parallel Ruler is the best seller. This sturdy ...
Using Parallel Rules - YouTube
This video is about Using Parallel Rules for traditional chartwork. It's designed as a refresher and looks at three ways they can be used.
Parallel Ruler Price - American Nautical Services
Collection: Parallel Rulers. Explore our exquisite collection of parallel rulers, essential tools for precision navigation and chart plotting. Crafted by ...
How to Use Parallel Rulers on Nautical Charts for Navigation - Home
A parallel ruler, also known as a parallel rule, is used for plotting and maintaining a course on a nautical chart.
Clear Parallel Rules - Celestaire, Inc.
The 15-inch (38.1 cm) Value Parallel Rule is a basic parallel rule without a protractor scale.
Antique Maritime Parallel Rules for sale - eBay
Antique Kelvin & Hughes 24" Brass Parallel Ruler Nautical Navigation Tool in Box. $299.99 or Best Offer. $20.00 shipping.
Weems 24" Commercial Parallel Rules - Bluewater Books & Charts
With more than 35000 nautical books and charts on our shelves, Bluewater Books & Charts is America's largest seller of nautical books, paper charts, ...
Weems & Plath 18 Parallel Rules Aluminium
The 18" Aluminum Arms Parallel Ruler features aluminum arms that join two clear acrylic rulers. An essential item in any proper navigation kit, the Aluminum ...
Nautical Navigation Tools for Mariners - Amnautical
Explore our collection of Nautical Navigation Tools. From parallel rules to compasses, find quality gear to navigate with confidence. Perfect for sailors!
Using parallel rules - Classic Sailor
Using parallel rules ... Parallel rulers were first developed in the 16th century but not adopted by navigators much before the 1700s. They work ...
15" Aluminum Graduated Parallel Rules - Celestaire, Inc.
With bevels on all four sides; springs built in the bearings ensure a smooth motion which is critical in parallel rule operation.Cork disks on the underside ...
Davis 061 Course Charting Parallel Rule - Wolf's Marine
Parallel rules are the most basic plotting instrument. Davis Parallel Rules are : Completely transparent with a clear optical finish for exact plotting.
Weems & Plath 24" Commercial Parallel Rules
W&P 24 These navigator's parallel rulers are inscribed with full 180 degree protractor markings. The middle of the bottom edge forms the protractor center ...
Parallel Rule Captain Fields Pattern - Blundell Harling
Parallel Rule Captain Fields Pattern · Divided with protractor markings (double reading) and compass points · Manufactured from high quality 6mm acrylic ...
WEEMS & PLATH Parallel Rules - West Marine
Shop WEEMS & PLATH Parallel Rules at West Marine. Visit for prices, reviews, deals and more!
Davis 15'' Parallel Rules - TackleDirect
Davis 15andquot; Parallel Rules - Completely transparent clear optical finish allows for exact plotting Each 15andquot; (38 cm) blade features large, ...
Parallel Rules Resources - Smithsonian Institution
Riches, David M. "Parallel Rules: Rolling and Bar Types." http://www.mathsinstruments.me.uk/page39.html. Riches is a collector who has gathered photos and ...
walking the parallel rules - YouTube
How to properly use parallel rules for charting and navigation.