Citizen JW0090-53E Reference Manual Download Page 11

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English

[Calculation of fuel consumption]
Q :

How much fuel is needed for a vehicle to run 5 hours if the fuel consumption rate of

that vehicle is 7 liters per hour?

A :

Align 70 of the outer scale with the “



” of SPEED INDEX of the inner scale.

Result: 35 liters - 35 corresponds to 5.

[Calculation of drive time]
Q :

How many hours can a vehicle whose fuel consumption rate is 8 liters/hour run

using 40 liters of fuel?

A :

Align 80 of the outer scale with the SPEED INDEX “



” of the inner scale.

Result: 5 Hours - 5:00 on the outer scale corresponds to 40 of the inner scale.

Summary of Contents for JW0090-53E

Page 1: ...English Enhanced Features and Functions Guide...

Page 2: ...ltiple functions There may be some discrepancy between the illustrations shown and the appearance of your watch however the method of operation will remain the same 1 Tachymeter speed calculation 4 2...

Page 3: ...er bezel depending on model As shown in the illustration it takes the vehicle 45 seconds to travel 1km or 1mi so the approximate average speed is 80kph 50 mph Second hand 2 How to use the watch as a C...

Page 4: ...ints so as to figure out the elapsed time As shown in the illustration the elapsed time is 10 minutes Minute hand Time elapsed To check the remaining time Set the mark to the scheduled time You can no...

Page 5: ...9 3 1 10 1 2 0 1 3 0 1 4 0 1 50 2 00 2 3 0 3 00 3 30 4 0 0 4 3 0 5 00 6 0 0 7 0 0 8 0 0 9 00 Note In some models the inner and outer scales are opposite Be sure to make the appropriate substitutions...

Page 6: ...nner scale and get the answer 12 5 How to calculate ratios Q 30 20 60 A A Adjust 30 of the outer scale until it points to 20 of the inner scale You can read the digit 40 from of the scale of the inner...

Page 7: ...digit corresponding to the of IMP GAL LITERS you can get the answers which are 1 82 IMP GAL and 8 28 Liters How to convert weight between the different units of measurement You can convert between Oi...

Page 8: ...the inner scale Move the decimal point once and you will get the answer which is 1 6km Similarly you can get the answer 86 6 NAUT corresponding to the of NAUT How to convert fuel between different uni...

Page 9: ...le with the SPEED INDEX of the inner scale Result 5 Hours 5 00 of the inner scale correspondes to 40 of the outer scale Calculation of speed Q What is the speed of a vehicle travelling a distance of 1...

Page 10: ...he inner scale Result 80km corresponding to 1 20 of the inner scale can be figured out Calculation of fuel consumption rate consumed per hour Q If the drive time is 5 hours and 30 liters fuel are cons...

Page 11: ...0 of the outer scale with the of SPEED INDEX of the inner scale Result 35 liters 35 corresponds to 5 Calculation of drive time Q How many hours can a vehicle whose fuel consumption rate is 8 liters ho...

Page 12: ...r scale with the SPEED INDEX of the inner scale Result 2 hours and 30 minutes 2 30 of the inner scale corresponds to 45 of the outer scale Calculation of flight distance Q If the speed is 210 knots an...

Page 13: ...n 12 of the outer scale with 30 of the inner scale Result 240 gallons per hour 24 corresponding to the SPEED INDEX Calculation of fuel consumption Q If the fuel consumption rate of an aircraft is 250...

Page 14: ...to use the Yachting function 5 Many yacht races are set in triangular course layouts such as the one described on the next page where the winner is the boat that navigates the designated course aroun...

Page 15: ...ourse bearing from the Wing mark to the leeward mark port reach is read off the bezel in degrees at the red on the bottom right S T A R B O A R D R E A C H WINDWARD LEG RUNNING P O R T R E A C H Wind...

Page 16: ...s set at right angles to the direction of the wind but because the wind is always shifting direction it is a rare occasion when a true 90 angle is achieved In view of this condition line up the white...

Page 17: ...clock Adjust the city name Tokyo TYO above the rotating bezel to 22 o clock of 2 24 hour scale You can determine the time of Paris PAR is 8 o clock by reading the 24 hour 3 scale corresponding to the...

Page 18: ...52 approx 6 076 feet STAT Short for statute mile 1STAT 1 609 5 280 feet KM Short for kilometer 1 3 280 feet FT Short for feet 2 LITERS 1liter 0 264 U S gallon 0 22 IMP gallon U S GAL Short for U S gal...