Minutes and Hours

Figure 4.3-9 Unit Index

CURSOR HAIRLINE

The primary function of the cursor hairline is to input temperature into the CR-3 for

calculating true Air Speed (see chapter 4). Its secondary purpose is to help with

interpolation of any values derived from the inner and outer wheels.

Figure 4.3-10 Minutes to Hours

TIME

MINUTES AND HOURS

Both the outer and inner scales are the same. The outer scale can be referred to as the

DISTANCE scale and the inner scale called the TIME scale. In using the TIME scale, the

large numbers near the edge of the inner scale usually represent minutes. The floating

decimal concept still applies; for example the 15 value on the minute scale could represent

1.5, 15, or 150 minutes. Notice it DOES NOT, directly represent seconds. Note that the

value of 60 minutes has a special meaning; it equals one hour. Because it is an often-used

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