

🧭 Navigate with confidence, plot with precision — don’t let your next voyage be anything less!
The Weems & Plath Marine Navigation Parallel Plotter is a high-quality, compact plotting tool featuring three distance scales tailored for N.O.S. charts, an aluminum roller for smooth line transfers, and integrated protractors for accurate course plotting. Lightweight and durable, it’s a trusted choice among boating professionals seeking precision navigation.
| ASIN | B0000AY1BQ |
| Auto Part Position | Unknown |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #59,930 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #2 in Boat Compasses |
| Brand | WEEMS & PLATH |
| Brand Name | WEEMS & PLATH |
| Color | black |
| Country of Origin | China |
| Customer Reviews | 4.4 4.4 out of 5 stars (190) |
| Date First Available | April 26, 2006 |
| Fit Type | Universal Fit |
| Global Trade Identification Number | 00721002001207 |
| Included Components | Aluminum roller assembly, Semi-circular protractor, Two quarter circle protractors, Instructions on back of plastic storage sleeve |
| Item Dimensions LxWxH | 12.5 x 3 x 0.5 inches |
| Item Package Dimensions L x W x H | 13.46 x 4.17 x 0.71 inches |
| Item Weight | 0.31 Pounds |
| Item dimensions L x W x H | 12.5 x 3 x 0.5 inches |
| Lens Curvature Description | Flat |
| Manufacturer | Weems & Plath |
| OEM Part Number | 120 |
| Package Weight | 0.17 Kilograms |
| Part Number | 120 |
| Shape | Rectangular |
| Size | 3-1/2 inches x 12-1/2 inches x 0.5 inches |
| Special Feature | Aluminum roller assembly for easy course plotting and parallel line transfer, protractors for measuring courses and bearings |
| Sport Type | Boating |
| Suggested Users | womens |
| UPC | 721002001207 |
M**.
Nice
Not used it yet
M**.
Very high quality
This is handy when plotting your courses.
K**M
It Works
Works good. Made out of 1/8" sturdy plastic (probably won't take bending at all). Wheels seem to grip plotting and chart paper reasonably well. It is about 12.5 inches long so you need a bit of room to use it - especially to keep the wheels on a level, gripping surface. It will go in my chart kit and out to sea.
J**M
Good alternative to parallel rule
I prefer this to a parallel rule. It is much easier to use on the smaller format of chart books. It's size and the roller aspect to its operation make it easier to use and less subject to slipping.
G**E
All is perfect.
Product as expected, perfect.
W**K
Navigation Parallel Plotter
I know its great when my instructor won't stop taking it from me to do plotting. I should have purchased two, one for the instructor and one for me. Great item, Great price. You might need to hide it. ha!
R**O
Defective
This device is intended to make accurate navigational measurements. This design can be faster to use than parallel rulers. I have utilized this exact model on my teacher's yacht, and it works great. However, I have purchased three, and returned three. The first was broken. The acrylic ruler was broke in two. The second had 0.5 degree of looseness. The third is also noticeably loose. Unacceptable for navigation. Do not buy.
J**E
Not bad
Works as intended but quality not the best. Plastic can warp easily.
S**G
Product finally arrived and is as described. Seller responded in a timely fashion to quesitons and was helpful in locating the package. The product is in original packaging with instructions. Recommend seller.
F**S
Excellent product, well packaged and shipped quickly
Trustpilot
3 weeks ago
4 days ago