The slide portion of the circular slide rule side also includes quick- reference material. This side of your computer simply consists of a rotating disk with numbers on the middle scale, which when set against similar numbers on the fixed portion outer scale , allows you to solve problems of time, speed, and distance, calculate fuel consumption, and make conversions be- tween measurements such as statute and nauti Page 6 Now look at the number 15 on the disk. Between 15 and 16 each calibration mark is equal to. If you were solving a problem with an airspeed of knots, the first calibration past 15 in this case would be Page 7 Figure 2.

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The slide portion of the circular slide rule side also includes quick- reference material. This side of your computer simply consists of a rotating disk with numbers on the middle scale, which when set against similar numbers on the fixed portion outer scale , allows you to solve problems of time, speed, and distance, calculate fuel consumption, and make conversions be- tween measurements such as statute and nauti Page 6 Now look at the number 15 on the disk.

Between 15 and 16 each calibration mark is equal to. If you were solving a problem with an airspeed of knots, the first calibration past 15 in this case would be Page 7 Figure 2.

Line up the number 60 the rate arrow with the number 12 on the outer disk or, scale. There are three basic time-speed-distance problems. In two of these problems you know the rate, while in the third prob- lem, the rate is part of the answer you are looking for. Page 9 Figure 3 Figure Page 10 In the final and most common type of time-speed- distance problem, the time and distance are known, and you need to solve for unknown speed. The rate arrow represents the answer.

You will have flown between two known ground reference points 26 NM apart and checked the time between them to be: 13 thirteen minutes, that is, not thirteen hours. Page Fuel Consumption Problems Fuel Consumption Problems Problems involving fuel consumption, fuel endur- ance, and fuel capacity are solved using the same numbers you used in the time-speed-distance prob- lems. With the exception of time values, only the names change.

Page 12 When you paid for your fuel you noted on the delivery ticket that it took 32 gallons to top the tanks. You flew four hours and twenty minutes before stopping for fuel. What was the average fuel con- sumption? This time the rate arrow provides the answer. Page 14 You can convert either nautical or statute miles to kilometers.

Find the KM marking on the outer scale. For example, to convert stat- ute miles to kilometers: 1. Page U. Gallons To Imperial Gallons U. Arrows marked U. GAL are provided on both middle and outer scales to help you convert between these quanti- ties. For weight and balance calculations, aviation gaso- line weight-per-gallon can be determined by lining the U.

Page 17 Figure 12 1. Align the arrows. Read 15 pounds on the outer scale opposite of 2 gallons on the middle scale. See Figure Imperial gallon weight of fuel and oil may also be determined in the same manner by lining up the IMP. Page Using The Altitude And Speed Correction Windows The E6-B provides windows on the slide rule side so you can allow for these variations when converting calibrated airspeed to true airspeed or indicated altitude to true altitude.

Page 19 Figure 13 3. See Fig- ure A calibrated airspeed of knots converts to a true airspeed of knots and a density altitude of 15, feet under these conditions.

Index inside the airspeed correction window on the inner dial. Line up the true or outside air tem- perature do not use Indicated Air Temperature opposite this Mach No. Page True Altitude True Altitude When the air is colder than standard your altimeter can mislead you into thinking you are higher than you actually are.

Determine true altitude by the following steps: 1. Determine pressure altitude by setting Page Feet Per Mile Vs. Page 23 ground speed will indicate feet per minute, while a jet following that same gradient at knots ground speed will show a vertical speed of 1, feet per minute. You can convert feet per mile to feet per minute by placing the rate arrow opposite to the ground speed, finding the feet per minute value on the outer scale lined up with the feet per mile value on the If you find yourself over a landmark to one side of the course line you should be able to estimate the distance you have drifted off course the scale of sectional charts is 8 statute miles to the inch , and your flight log should help Page 25 Figure 17 opposite of the distance off course; read additional degrees of heading change opposite of the rate arrow.

Add the two answers and apply the result to your heading. Example: Your destination is miles ahead see Figure 18 on the next page. Page 26 Figure 18 Figure 19 shows the setups in equations. Figure Page The Crosswind Table The Crosswind Table To determine headwind, tailwind or crosswind component quickly and easily, you must know the angle between your course and the reported wind direction.

You also must know the reported wind velocity. This will be especially helpful in anticipat- ing the effect of wind when landing, because wind reported by a tower, flight service station, or ATIS is surface wind.

Measure up from the grommet and make a dot equal to the wind velocity. Page 30 — the value of each line changes at the , , or knot arc, depending on the E6-B model you are using see Note below Figure If you have an autopilot and some free time, you can calculate the actual winds at your location and altitude.

It helps if you have GPS, too. To solve an inflight wind problem you need your ground speed, true heading, true course, and true airspeed. Page 33 check came out to be knots, and you calculate the true airspeed at your altitude to be knots. Move the slide until the grommet falls over the line marked

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## Jeppesen E6-B Manuals

The procedure for determining fuel burn for a given leg is similar to finding leg time. Dalton felt that it was a rushed design, and wanted to create something more accurate, easier to use, and able to handle higher flight speeds. The name comes from its original part number for the U. Convert mph to knots. Or browse all our options in our online store. Rather than outline each one, I have made a collage of sorts to highlight a couple:.

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## ASA Electronics AirClassic E6-B Instructions Manual

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## JEPPESEN E6B MANUAL PDF

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