Two of the following quantities are available for its solution: time, distance, ground speed.Ī pilot finds by the use of checkpoint that he has traveled 104 miles in 35 minutes. The mobile outer and fixed inner scales are used for determination of ground speed problems. Read answer, 30, on outer scale opposite unit index (numeral "10" on inner scale).
Place 120 on outer scale opposite 4 on the inner scale. Opposite the unit index (numeral "10" on inner scale), read answer on outer scale.ĭivide 120 by 4. Place the dividend (the quantity to be divided by another number) on the outer scale opposite the divisor (quantity by which another is divided) on the inner scale. To divide with the Navitimer, also use the unit index (red "10). Opposite 7 (the multiplicand) on the inner scale, read the answer 84 on the mobile dial. To multiply 7 x 12, set 12 (the multiplier) on outer scale opposite unit index ("10") on the inner scale. Always set the multiplier (the number by which another is multiplied) opposite the unit index on th einner scale and read the answer on the outer scale opposite the multiplicand number (number to be multiplied by another) appearing on the inner scale. To multiply with the Navitimer, use the unit index (number "10" in red on the inner scale). Let's go step by step on their functions:
#SLIDE RULER HOW TO#
This is the little nifty card of the slide rule that comes with all Navitimers that would help the prospective user to figure out how to use it, which is accompanied by this diagram that is included in the manual:Ī full-scale version can be downloaded here:Īs you can see, there are ten functions that accompany the slide rule, and each can be used in conjuction with everyday life whether you are a air pilot or land junkie. In the air, the E6B can be used to calculate ground speed as well.
#SLIDE RULER SERIES#
The slide rule on the Navitimer series (and other Breitlings/Sinns that use this feature ) is based on the E6B flight computer a computer not in the sense that it's not electronic, but a tool for pilots to aid in calculating fuel burn, wind correction, time en route, and other items. If you're deciding to disregard this guide because your rep Slide Rule is inaccurate, don't discredit it just yet! I will show you how you can use it for common calculations and other novelty functions that you can gain for your advantage when being asked by friends and admirers what the feature does! Don't be embarrassed by not being able to know the functions of your own watch again! Ever wonder what those "little numbers" on the Breitling Navitimer dial bezel were for, or if you've wondered about the utility of the Slide Rule and how it can help you in land or in air, then I have constructed this guide for you.
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