Breitling circular slide rule

Back in the 1950s, Breitling had had a worldwide reputation for its accurate and reliable cockpit timer and outstandingBreitling watchesof great performance provided for the pilot, known as "the world's aviation industry official suppliers." However, a more ambitious dream Breitling has:it will provide a tailor-made a flying wrist calculatorfor for pilots, which is easy for operation and can be required for all air operations.Some replica watches haveused it.This is the famous Breitling Circular Slide Rule. This genius idea was originally used in the Breitling Chronomat Chronograph introduced in the year of 1942 . circular slide rule is combined with active rule and fixed rule: bi-directional rotating bezel with outer activity scale, the dial with inner edge of the fixed foot, and two slider scale figures are in the opposite direction. By rotating bezel, two slider scale corresponds to the multiplication, division, and all the speed ratio calculation method.

To make a more perfect circular slide rule, a mathematician Marcel Robert (Marcel Robert) started drawing and then re-calculus. First, he reverse the outer scale of the slider, resulting in a clockwise direction two parallel logarithmic scale, so a separate multiply and divide operations as possible, without turning bezel better case to read the complete multiplication table or conversion tables. Another important improvement is more for the pilot, added on the inner scale in aeronautics from the three most commonly used units: "statute mile", "km" and "sea", as long as a number on the outer scale and one of these signs in alignment, you can read at a glance the number of units corresponding to the value of the other two. Improved, circular slide rule this new equipment to help pilots to complete flight planning and navigation required to perform all the operations by the aviation professionals of the same ages, has become a veritable "flying circular slide rule." In 1952, Breitling improved the ring will be the first flight on the slider assembly to watch the introduction of number "806" aviation chronograph, named "Navitimer", the "navigation" (navigation) and the "timer" (timer) abbreviation, since the pilot will have a truly belongs to watch. This makes its replica watches uk be pursued by many people.While this precision chronograph performance, compact and practical, not only from pilots and flight enthusiasts sought after, even by the World Pilots Association (AOPA) recognition as an official with the association table. Functional range of circular slide rule flight renowned in the industry, but its basic principles are not complicated, is through the inner and outer circles of two scale relative rotation to simple multiplication and division, and thus derived from a number of flight useful features, such as average speed, flight distance, fuel consumption, rate of climb or descent, kilometers and nautical miles or conversion, etc., as well as the related calculation of daily life, such as simple exchange rates and so on.
 

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