The Breitling Navitimer, a watch synonymous with aviation history and sophisticated design, is renowned for its integrated circular slide rule, known as a *rechenschieber* in German. This intricate mechanism, a testament to horological ingenuity, allows for rapid calculations crucial for pilots and navigators. Understanding its operation is key to unlocking the full potential of this iconic timepiece. This comprehensive guide will dissect the Breitling *rechenschieber*, providing a detailed *anleitung* (instruction manual) encompassing its functionality, various applications, and troubleshooting common user queries. We will explore the slide rule's capabilities within the broader context of Breitling chronometer manuals and delve into specific aspects like the tachymeter function and the use of the bi-directional rotating bezel.
Understanding the Terminology:
Before diving into the intricacies of the slide rule, it's crucial to familiarize ourselves with the terminology used across different languages:
* Rechenschieber (German): Slide rule
* Regolo calcolatore (Italian): Slide rule
* Regla de cálculo (Spanish): Slide rule
* Régua de cálculo (Portuguese): Slide rule
* Л ˘ ˛#˚ (Cyrillic): While this appears to be a typographical error or a non-standard representation, it likely intends to represent the word for "slide rule" in a Slavic language. The exact translation would depend on the specific Cyrillic script used.
* Lunette tournante bidirectionnelle (French): Bi-directional rotating bezel
* Bi-directional rotating bezel (English): Bi-directional rotating bezel
* Lünette in beide Richtungen drehbar (German): Bezel rotatable in both directions
* Lunetta (Italian): Bezel
The Breitling Navitimer 1 Instructions and the Slide Rule:
The Breitling Navitimer 1, arguably the most famous model featuring the *rechenschieber*, comes with a comprehensive instruction manual. However, these manuals often lack the detailed, step-by-step explanations that many users desire. This article aims to fill that gap, providing a clear and accessible guide to operating the slide rule.
Breitling Slide Rule Explained: The Fundamentals
The Breitling Navitimer's slide rule is a circular, rotating bezel featuring various scales. These scales, typically including scales for multiplication, division, proportions, and more specialized aviation calculations (such as speed, distance, fuel consumption, and time), are arranged for seamless interaction. The outer bezel rotates independently, allowing the user to align different scales for complex computations. The watch's hands interact with these scales to provide the calculated results.
Key Scales and Their Functions:
While the specific scales and their arrangement may vary slightly depending on the Navitimer model and year of manufacture, the most common scales include:
* Inner Scale (Usually marked with numbers 1-100): This scale is often used as a base scale for many calculations.
* Outer Scale (Typically a reciprocal scale): This scale provides the reciprocal values of the inner scale, facilitating division operations.
* Speed/Distance Scale (Often marked with "km/h" or "mph"): This scale allows for calculations involving speed, distance, and time.
* Fuel Consumption Scale: This scale aids in calculating fuel consumption based on distance and fuel efficiency.
* Time Scale: This scale is often used in conjunction with other scales to calculate flight times or other time-related calculations.
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