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Nautical Slide Rule


 - Weems & Plath Marine Navigation Nautical Slide Rule
Weems & Plath Marine Navigation Nautical Slide Rule

Gives immediate solution to all speed-time-distance problems. Equally applicable for nautical or statute miles. Speed in knots or m.p.h., time in hours, minutes, or seconds, and distance in nautical or statute miles (or yards if desired, and if speed is i

  • Brand: WEEMS & PLATH
  • ASIN: B0000AYILW
  • UPC: 721002001054
 - Weems & Plath #317 Basic Navigation Set
Weems & Plath #317 Basic Navigation Set

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.

  • Brand: WEEMS & PLATH
  • ASIN: B0000AXYQO
  • UPC: 721002001863
 - Weems & Plath Marine Navigation Primary Navigation Set
Weems & Plath Marine Navigation Primary Navigation Set

This mix of plotting tools is a tremendous value. Features: #176 Ultralight Divider along with #139 milled 12" parallel rulers, #105 Nautical Slide Rule, and a navigator's pencil. Set comes packaged in a durable plastic storage pouch. Dims: 8" x 13-3/4".

  • Brand: WEEMS & PLATH
  • ASIN: B000IMWWZG
  • UPC: 721002322005
 - T/S/D Computer with Protractor Plotter
T/S/D Computer with Protractor Plotter

APR has designed the first combination T/S/D pocket computer combined with a protractor, plotter and rotatable cursor. The T/S/D side of the computer shows fuel consumption solutions, density altitude factors, conversions for true airspeed & altitude, Mach number, kilometers, minutes to seconds, statute to nautical to statute miles, off-course drift corrections, and slide-rule mathematics. Reciprocals of bearings shown on the PROTRACTOR are indicated directly below the bearing. Sixteen cardinal and sub-cardinal points of the compass are shown on the PROTRACTOR; for example, N, NNE, NE, ENE, E, etc. TEMPERATURE CORRECTION C˚ This scale shows the correction to be applied to the Outside Air Temperature indication (OAT) due to the heating of the temperature probe as it passes through the air stream. For instance, at a speed of 200 kts True Airspeed a correction of -4˚C must be applied to the indicated OAT to obtain the correct OAT called True Air Temperature (TAT). APR's combo Protractor/Plotter and T/S/D computer is manufactured in the USA and includes a comprehensive, illustrated instruction manual with practice problems and solutions.

  • Brand: Aero Products
  • ASIN: B003TU6J4O
 - Weems & Plath Marine Navigation Compute-A-Course Multi-Purpose Plotting Tool
Weems & Plath Marine Navigation Compute-A-Course Multi-Purpose Plotting Tool

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

  • Brand: WEEMS & PLATH
  • ASIN: B000IMYWKY
  • UPC: 721002001115
 - Weems & Plath Marine Navigation Parallel Plotter
Weems & Plath Marine Navigation Parallel Plotter

Our most popular plotter! This instrument consists of a plotter mounted on a roller. The plotter contains distance scales at 1:20,000, 1:40,000, and 1:80,000 to fit the N.O.S. Coast and Harbor Charts, as well as an inch scale. Included are a semi-circular

  • Brand: WEEMS & PLATH
  • ASIN: B0000AY1BQ
  • UPC: 721002001207
 - STD (Speed,Time, & Disrtance) Calculator
STD (Speed,Time, & Disrtance) Calculator

Simple to use slide rule.;Calculates the third variable given the other two (distance covered, given speed and elapsed time).;Outer sleeve manufactured from high impact plastic.

  • Brand: BH
  • ASIN: B0057FKHSS
 - Weems & Plath Marine Navigation Nautical Slide Rule by Weems & Plath
Weems & Plath Marine Navigation Nautical Slide Rule by Weems & Plath

Brand New

  • Brand: WEEMS & PLATH
  • ASIN: B013XRIPJE
  • UPC: 796793529469
 - Weems & Plath Marine Navigation ROADrule Marine Navigation Aids, Rules of The Road and Light Characteristics (USATONS, U.S. Waters)
Weems & Plath Marine Navigation ROADrule Marine Navigation Aids, Rules of The Road and Light Characteristics (USATONS, U.S. Waters)

Navigation Aids, Rules of the Road and Maneuvering Signals for U.S. Inland Waterways

  • Brand: WEEMS & PLATH
  • ASIN: B000RI1NRY
  • UPC: 721002004192
 - Weems & Plath Marine Navigation Coast Guard Navigation Tool Kit
Weems & Plath Marine Navigation Coast Guard Navigation Tool Kit

The five most popular items that the U.S. Coast Guard buys in one convenient kit. The kit contains: 1 each of the #176 Ultralight Divider/Compass - our most versatile divider/compass, #7291 15-Pack of Spare Leads for the Ultralight Divider/Compass, #120 W

  • Brand: WEEMS & PLATH
  • ASIN: B000KE1J8I
  • UPC: 796793670444
 - Weems & Plath Marine Navigation Parallel Ruler (Aluminum Arms, 15-Inch)
Weems & Plath Marine Navigation Parallel Ruler (Aluminum Arms, 15-Inch)

15 inch length, 0.22 inch thickness, aluminum arms and handles. Wt. 7.5 oz.

  • Color: Aluminum Arms
  • Brand: WEEMS & PLATH
  • ASIN: B000IMT1M8
  • UPC: 721002001412
 - T/S/D Computer with Protractor Plotter
T/S/D Computer with Protractor Plotter

APR has designed the first combination T/S/D pocket computer combined with a protractor, plotter and rotatable cursor. The T/S/D side of the computer shows fuel consumption solutions, density altitude factors, conversions for true airspeed & altitude, Mach number, kilometers, minutes to seconds, statute to nautical to statute miles, off-course drift corrections, and slide-rule mathematics. Reciprocals of bearings shown on the PROTRACTOR are indicated directly below the bearing. Sixteen cardinal and sub-cardinal points of the compass are shown on the PROTRACTOR; for example, N, NNE, NE, ENE, E, etc. TEMPERATURE CORRECTION C˚ This scale shows the correction to be applied to the Outside Air Temperature indication (OAT) due to the heating of the temperature probe as it passes through the air stream. For instance, at a speed of 200 kts True Airspeed a correction of -4˚C must be applied to the indicated OAT to obtain the correct OAT called True Air Temperature (TAT). APR's combo Protractor/Plotter and T/S/D computer is manufactured in the USA and includes a comprehensive, illustrated instruction manual with practice problems and solutions.

  • Brand: Aero Products
  • ASIN: B003TU4M8E
 - Slide Anchor Box Anchor for Boats, Offshore, Small,Silver
Slide Anchor Box Anchor for Boats, Offshore, Small,Silver

The Box Anchor is a state of the art offshore boating anchor that brings anchoring to a new level of sophistication by allowing you to have more control over the placement of your boat, regardless of the situation. It requires no chain and only a fraction of the line used for a traditional Danforth anchor, making the Box Anchor easier to handle than most other boat anchors available. The Box Anchor's unprecedented patented design allows your boat to be held at a 45 degree angle from the bottom, digging the downward facing flukes firmly into the bottom without snagging them permanently on debris. When it comes to retrieval, just pull the line to bring the boat over the top of the anchor and the lack of upward facing surface area will allow the Box Anchor to pop right off the bottom. This same principle works in wind or current change.

  • Color: Galvanized
  • Brand: Slide Anchor
  • ASIN: B0000AXND7
  • UPC: 796793595372
 - CREATIVE CEDAR DESIGNS Playset Anchor Pack (4Piece), Black, One Size
CREATIVE CEDAR DESIGNS Playset Anchor Pack (4Piece), Black, One Size

Anchoring kits from Creative Cedar Designs are the best investment you can make in playsets hardware to keep your backyard play structure safe & secure. You'll never think about anchoring your outdoor playset until the next big Storm is trying to uproot it! includes (4) anchors, metal straps, lag bolts, flat washers and illustrated directions with checklist for play-safe installation.

  • Color: Black
  • Brand: CREATIVE CEDAR DESIGNS
  • ASIN: B01N9W7L43
  • UPC: 817452020018
 - CE Smith Trailer Bunk Board Guide-On, 2'- Replacement Parts and Accessories for Your Ski Boat, Fishing Boat or Sailboat Trailer
CE Smith Trailer Bunk Board Guide-On, 2'- Replacement Parts and Accessories for Your Ski Boat, Fishing Boat or Sailboat Trailer

CE Smith Trailer, 27660, 2' Bunk Board Guide-On. Carpeted bunk boards provide proper center loading even in wind or side current conditions. For larger trailer frames check out our Large Frame U-Bolt Kit (11416). Pre-galvanized steel parts are stamped from a sheet of steel after it has already been galvanized. The edges of the pre-galvanized parts often lose their zinc coating during the stamping process. Because of the thinness of the coating less than 1 mm and the fact that the edges remain exposed, pre-galvanized parts can begin to oxidize and rust quickly, so its recommended that they be primed and painted.

  • Color: Beige
  • Brand: CE Smith
  • ASIN: B001445EUW
  • UPC: 768296001865
 - Anchormate Worth Anchor Reel, Black
Anchormate Worth Anchor Reel, Black

The Anchormate was designed for total ease and safety in anchoring. Simply turn the button to drop the anchor. The free spooling reel stops...

  • Color: Black
  • Brand: Anchormate
  • ASIN: B000KKET98
  • UPC: 033709150363
 - Davis Instruments Charting Kit (Pkg. 6 Pieces Included)
Davis Instruments Charting Kit (Pkg. 6 Pieces Included)

This handy kit makes Chart work easy. Includes all tools needed to plot your post I on a paper Chart, or to complete technical drawings. Each tool is precision made and features sharp printing with over lamination for durability. Comes packaged together in a heavy gauge carrying case to keep your navigation tools organized. Pencil and Instruction booklet also included.

  • Brand: Davis
  • ASIN: B001VEHFCA
  • UPC: 011698008308
 - Davis Instruments Navigation Rules Quick Reference Card
Davis Instruments Navigation Rules Quick Reference Card

A proven navigation tool used by the U.S. Coast Guard, U.S. Power Squadrons, and U.S. Coast Guard Auxiliary. Navigation Rules feature U.S. Buoyage System, inland and international rules, right-of- way, lights, sound signals, and bridge signals. All presented in graphic summary and easy to read. Complete, precise, accurate.

  • Color: Original Version
  • Brand: Davis Instruments
  • ASIN: B0014438TQ
  • UPC: 757183229048

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Look at Nautical Slide Rule Video Reviews

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How to Use a Slide Rule: Multiplication/Division, Squaring/Square Roots

Nautical Slide Rule Review

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Reactor 81101 Valkyrie Chronograph with E6B Slide Rule Bezel

Nautical Slide Rule Review

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Nautical Slide Rule Review

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Nautical Slide Rule Review

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