HAMILTON KHAKI AVIATION CONVERTER - Watch Manual

Introduction

The Khaki Aviation Converter enables you to make a number of instant calculations using scales printed on the rotating bezel A and the flange B.

Multiplication

For multiplication, turn the bezel A to align the number chosen as the common multiplier, in this case 15 (orange arrow), with index 10 on the flange (black arrow).

The result (green arrow) appears opposite the multiplied number (red arrow).

Below are three examples of calculations performed using 15 as the common multiplier.
14 x 15 = 210
16 x 15 = 240
30 x 15 = 450

Note:
Depending on the numbers used in the calculations, the results can be read in simplified terms.
For example, if the result displayed is 21, this can also mean:
2.1 for a multiplication of 1.4 x 1.5
21 for a multiplication of 1.4 x 15 or 14 x 1.5
210 for a multiplication of 14 x 15
2,100 for a multiplication of 140 x 15 or 14 x 150
21,000 for a multiplication of 140 x 150 or 14 x 1,500

Division

For division, turn the bezel A to align the number to divide, in this case 40 (orange arrow), with the divisor number on the flange, in this case 8 (black arrow).

The result (green arrow) appears opposite index 10 on the flange (red arrow) and must logically be read as 5.

Reading examples:
40/8 = 5
40/0.8 = 50
400/8 = 50
400/0.8 = 500
4,000/80 = 50

Converting kilometers to nautical miles or statute miles

Examples KM - NAUT:

50 KM = 27 NAUT or 5 KM = 2.7 NAUT
74 KM = 40 NAUT or 7.4 KM = 4 NAUT

Examples KM - STAT:
45 KM = 28 STAT or 4.5 KM = 2.8 STAT
70 KM = 43.5 STAT or 7 KM = 4.35 STAT

To convert kilometers (KM) to nautical miles (NAUT) or statute miles (STAT) or vice-versa, turn the bezel A in order to align the "NAUT" or "STAT" index (orange arrow) with the "KM" index on the flange (black arrow).

The result (green arrow) can immediately be seen opposite any number indicated on the flange (red arrow).

Converting currencies

Example: You would like to convert Swiss Francs into Euros. The exchange rate is CHF 1.20 for EUR 1.

To do this, turn the bezel A to align the exchange rate, in this case number 12 for CHF 1.20 (orange arrow), with index 10 on the flange (black arrow).

The result (green arrow) appears opposite any number indicated on the bezel (red arrow).

Three examples:
CHF 3 = EUR 2.5 or
CHF 30 = EUR 25 or
CHF 300 = EUR 250

CHF 7.2 = EUR 6 or
CHF 72 = EUR 60 or
CHF 720 = EUR 600

CHF 9 = EUR 7.5 or
CHF 90 = EUR 75 or
CHF 900 = EUR 750

Ground speed

Example: A pilot travels 112 miles in 28 minutes. What is his ground speed?

To calculate his average ground speed, turn the bezel A to align 28 minutes (orange arrow) with 112 miles on the flange (black arrow).

Result: 240 MPH (green arrow) appears opposite "MPH" indicated on the bezel (red arrow).

You can also instantly convert the speed to miles per minute by reading the number (green arrow) opposite index 10 on the bezel (red arrow). In this case: 4 miles/min.

Note:
The values shown in miles can be replaced with kilometers (km) or knots.

Distance traveled

Example: A pilot wishes to calculate the distance he will travel in 25 minutes at a speed of 156 MPH.

To calculate the distance traveled, turn the bezel A to align the "MPH" index (orange arrow) with the speed "15.6" on the flange (black arrow).

The result 65 miles (green arrow) appears opposite 25 minutes indicated on the bezel (red arrow).

Note:
The values shown in miles can be replaced with kilometers (km).

Fuel consumption per 100 km

Example: 55 liters of fuel were required to travel 800 km.

To calculate a vehicle's fuel consumption in liters/100 km, turn the bezel A to align the 55 liters consumed (orange arrow) with the 800 km traveled on the flange (black arrow).

Result: 6.9 liters for 100 km (green arrow) appears opposite index 10 on the flange (red arrow).

Calculating short time spans

Example: A pilot is on approach to the airport at a ground speed of 190 MPH. Given that the VOR beacon is located 1.5 miles ahead of the start of the runway, he wishes to know how many seconds there are between the beacon and the runway.

To calculate this short time span, turn the bezel A to align the speed 190 MPH "19" (orange arrow) with index "36"* on the flange (black arrow).

Result: 28.5 seconds (green arrow) appears opposite the distance 1.5 miles "15" indicated on the bezel (red arrow).

Note:
The values shown in miles can be replaced with kilometers (km).

* Index 36 on the flange (black arrow) corresponds to the factor for converting hours to seconds.

Converting volumes, weights and lengths

"LITERS - GAL."
Liters - US gallons

Example:
50 LITERS = 13.2 GAL. or
5 LITERS = 1.32 GAL

"KG - LBS."
Kilograms - US pounds

Example:
7.9 KG = 17.4 LBS. or
79 KG = 174 LBS.

"METERS - Ft."
Meters - Feet

Example:
14 METERS = 46 Ft. or
140 METERS = 460 Ft.

Depending on the desired conversion, turn the bezel A to align the "GAL.", "LBS." or "Ft." index (orange arrow) with the "LITERS", "KG" or "METERS" index on the flange (black arrow).

The result (green arrow) can immediately be seen opposite any number indicated on the flange (red arrow).

Documents / Resources

Download manual

Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.

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