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Dependable and rugged, this sextant delivers accurate angle measurements for navigation. Includes micrometric adjustment, solar filters, and a shockproof frame for reliable performance.
Data sheet
Specific References
Imagine sailing under a vast, starlit sky, where the only tools you need to chart your course are the heavens and a reliable sextant. The Mark 15 sextant is designed for those who demand precision without compromise, whether you're navigating coastal waters or crossing open oceans. Built to withstand the harshest marine environments, this sextant combines durability with accuracy, making it an indispensable companion for sailors, adventurers, and maritime enthusiasts.
In an age where technology can fail, the Mark 15 sextant stands as a testament to the timeless art of navigation. Whether you're plotting a course by the stars or taking coastal bearings, this sextant delivers the accuracy and reliability you need to navigate with confidence. Don’t leave your journey to chance—equip yourself with a tool that’s as dependable as it is precise.
Unmatched Precision in a Lightweight Design
The Mark 15 sextant redefines what it means to navigate with confidence. Designed for both celestial and coastal navigation, this sextant offers a perfect balance of precision and portability. With a 7-inch (178 mm) radius limb, it provides a wide field of view and accurate angle measurements from -5° to 120°, ensuring you can track celestial bodies and landmarks with ease. The micrometric screw, divided into 1-minute increments and featuring a vernier scale with 1/5-minute (12-second) resolution, allows for ultra-fine adjustments, making it ideal for both novice and experienced navigators.
Built to Endure the Harshest Conditions
Crafted from high-impact, corrosion-resistant plastic, the Mark 15 is engineered to withstand the rigors of life at sea. Unlike traditional metal sextants, this model is lightweight (just 410 grams) yet incredibly durable, making it easy to handle without sacrificing strength. The indestructible black plastic frame ensures stability and accuracy, even in fluctuating temperatures, while the protected, adjustable mirrors (30x41 mm for the index and 35x50 mm for the horizon) provide clear, distortion-free reflections. Whether you're navigating in bright sunlight or low-light conditions, the seven included solar filters—arranged in two sets—ensure optimal visibility and eye protection.
Versatile Optics for Every Navigation Scenario
The Mark 15 is equipped with a 3x23 mm or 3x27 mm adjustable optical telescope, offering enhanced magnification for precise celestial observations. For quick and easy sightings, it also includes a direct-sighting tube, allowing you to align your view effortlessly. The sextant’s design prioritizes user comfort, featuring a precise level bubble to ensure accurate horizontal alignment and a comfortable grip for extended use. Whether you're measuring the angle of the sun at noon or tracking a star’s position at dusk, the Mark 15 delivers the clarity and precision you need to navigate with confidence.
Your Essential Backup for Safe Navigation
In today’s world, electronic navigation systems are prone to failure due to power outages, equipment malfunctions, or signal loss. The Mark 15 sextant serves as a reliable backup, ensuring you’re never left without a means to determine your position. Its compact design fits easily into a protective case (included), which measures 300x250 mm and is lined with foam to safeguard your instrument during storage and transport. Weighing just 1.08 kg with the case, it’s easy to stow on board without taking up valuable space. The included instruction manual provides clear guidance on setup, calibration, and use, making it accessible even for those new to celestial navigation.
Crafted for the Discerning Navigator
Manufactured in the USA, the Mark 15 sextant is a testament to quality craftsmanship and attention to detail. While it may not match the precision of high-end metal sextants, its affordability, durability, and ease of use make it an excellent choice for sailors who need a dependable tool without the complexity or cost of traditional models. Whether you're a recreational sailor, a long-distance cruiser, or a maritime professional, the Mark 15 is designed to meet your navigation needs with reliability and accuracy.
The Mark 15 sextant is engineered for precision and durability, featuring a 7-inch (178 mm) radius limb with a graduation range from -5° to 120°. It includes a micrometric screw with a drum divided into 1-minute increments and a vernier scale offering 1/5-minute (12-second) resolution for fine-tuned measurements. The sextant is equipped with seven solar filters, adjustable mirrors (30x41 mm index mirror and 35x50 mm horizon mirror), and a 3x23 mm or 3x27 mm adjustable optical telescope. Constructed from shock-resistant, corrosion-proof plastic, it weighs just 410 grams alone and 1.08 kg with its protective case, making it both lightweight and robust for marine environments.
The micrometer drum is graduated in 1-minute increments, and the vernier scale provides a resolution of 1/5 of a minute (12 seconds). Direct reading precision is 1 minute.
Accuracy may vary with temperature changes, so frequent index correction (IC) checks are recommended to maintain precision.
The index mirror measures 30x41 mm, and the horizon mirror measures 35x50 mm. Both are protected by a special varnish and are adjustable.
Yes, it is designed for both celestial and coastal navigation, allowing angle measurements between visible objects like the horizon and stars.
The sextant alone weighs 410 grams, while the total weight with the shockproof case is 1.08 kilograms.
Yes, it includes seven large solar filters: one set of three and another set of four, providing adequate protection for sun observations.
It includes an adjustable 3x23 mm optical telescope and a 3x27 mm stellar telescope, along with a direct-sighting tube for versatility.
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