Navigational Douglas Protractor: Precision Navigation Tools by Alfa Planhold Inc

When accuracy matters—whether you’re navigating the open seas, charting a flight path, or drafting a technical plan—the right tools are essential. At Alfa Planhold Inc, we’re proud to offer the Navigational Douglas Protractor, also known as the Navigation Square Protractor or Douglas Navigational Protractor, a trusted tool for precise plotting and measurement in air, sea, and land navigation.

What Is a Douglas Navigational Protractor?

The Douglas Navigational Protractor is a 5" x 5" square navigation tool designed for measuring, plotting, and determining bearings directly on maps and charts. With 360° markings in 1° intervals, it offers exceptional precision for professionals who demand accuracy.

Made from durable matte plastic, the surface allows users to write directly with pencil, making it easy to note bearings or courses during use. Compact yet functional, this 5-inch square aviation protractor is ideal for rapid plotting of courses and bearings in confined spaces such as aircraft cockpits or ship chart tables.

Unlike traditional navigation tools that require dividers or parallel rulers, the Douglas Protractor combines multiple functions into one efficient instrument—simplifying chart work and improving workflow.

Specifications:
Size: 5" x 5" x .030"

Key Uses of the Douglas Navigational Protractor

A staple among both marine navigators and aviation professionals, this versatile protractor supports a wide range of navigation and measurement tasks:

• Plotting Courses and Bearings: Accurately plot navigation routes and bearings directly on charts or maps.
• Measuring Angles: Determine the precise angle between a course line and true north to establish accurate headings.
• Determining Position: Combine multiple bearings or grid references to pinpoint exact map locations.
• Plotting Lines of Position: Essential for celestial navigation and advanced navigation training.
• General Plotting: Ideal for general mapping, vector analysis, and technical plotting work.

Why Professionals Choose Alfa Planhold Inc’s Douglas Protractor

At Alfa Planhold Inc, we specialize in providing high-quality navigation tools and precision instruments built to meet professional standards. The Douglas Navigational Protractor stands out for its simplicity, accuracy, and durability—offering clear advantages over traditional navigation aids.

• Compact and Lightweight: Easy to handle, store, and transport.
• Highly Accurate: 360° scale marked in 1° increments ensures precise readings.
• Multi-Purpose Design: Replaces the need for dividers and parallel rulers.
• Matte Finish: Allows pencil notations that can be easily erased and reused.

Popular among navigators in England and Australia, the Douglas Protractor has earned a global reputation as one of the most efficient and reliable tools for professional plotting in tight spaces.

Other Applications Beyond Navigation

While it’s a mainstay in maritime and aviation settings, the Douglas Navigational Protractor from Alfa Planhold Inc is also valued across industries that require precision measurement:

• Technical Drawing: Perfect for architects, engineers, and designers working on blueprints and structural plans.
• Carpentry and Construction: Used to measure angles and ensure precise alignment during furniture making and structural work.

Its versatility makes it a must-have tool not just for navigators, but for any professional who values accuracy, durability, and efficiency.

Conclusion: A Trusted Navigation Tool from Alfa Planhold Inc

Whether you’re charting a flight path, plotting a marine course, or drafting a technical layout, the Douglas Navigational Protractor provides the precision and dependability professionals rely on. At Alfa Planhold Inc, we are committed to supplying the highest quality navigation instruments and technical tools that support your accuracy and performance.

Explore our full range of navigation, drafting, and document storage solutions today at Alfa Planhold Inc