TABLE OF CONTENTS

NOTE

The plastic components of your computer may warp if exposed to excessive heat or sunlight . .. . 140? F or 60? C will do it.

JS314294E

? Jeppesen Sanderson, Inc., 1981, 1988. 1987. 1994 All Rights Reserved

55 Inverness Drive East, Engl ew ood, CO 80 11 2?5498

TABLE OF CONTENTS

PART A- CALCULATOR SIDE

PART B-WIND SIDE

Time - Speed - Distance . . . . . . . . . 2 The CR "Wind'' Disc . . . . . . . . . . 30

Fuel Consumption . . . . . . . . . . 4 Addition - Subtraction . . . . . . . . . 32

Conversions . . . . . . . . . . . . . . . . . . 5 Weight of Fuel and Oil . . . . . . . 9

Wind Solution on the CR . . . . . . . 33

Flight Planning with Forecast Winds . . . . . . . . . . . . 37

Altitude . . . . . . . . . . . . . . . . . . . . 11 Density Altitude . . . . . . . . . . . 12

Finding Winds in Flight . . ... . . 41

True Cow-se (Track! and Ground Speed ....... ..... . 44

True Altitude . . . . . . . . . . . . . 12 True Heading and True Air Speed . . . . . . . . . . . . 48

True Air Speed . . . . . . . . . . . . . . 14 OfT-Course Correction . . . . . . . . . 51

The CR Cursor . . . . . . . . . . . . 15 Radius of Action . . . . . . . . . . . . . 53

Mach Number ... . .? . ? .... 17 Wind Components for Takeoff and Landing . . . . . . . 55

Temperature Rise . . . . . . . . . . 20

"Old" Method ? True

Air Speed ..... . ... .... 21

PART C-ANSWERS, DEFINITIONS AND HINTS

P1?essure Pa tt-ern . . . . . . . . . . . . . 23 Answers to Practice Problems . . . 57

Slide Rule Use . . . . . . . . . . . . . . . 25 Definitions . . . . . . . . . . . . . . . . . . 58

Time and Distance to Station ... 28 Some Hints on the CR . . .. ..... 60

PART A-CALCULATOR SIDE

CR-2 and CR-3

0 Unit Index 0 Cursor Hairline 0 Recovery CoefCicient 1.0 0 Nautical-Statute Conversion Arrows 0 Calibrated Air Speed Window G Time Index 0 True Air Speed Windows 0 Base Disc

ii

CR -5

0 Top Disc 0 Temperature Conversion Scale G Indicated Temperature Window 4D Mach Number Window

G) Temperature Rise ScalP

0 True Altitude Window

G) Latitude for Pressure Pattern Scale

1

----

Ex a m p l e

Given: Ground peed ................... 200 ~I P H . Oistance...............................300 Stat. :\l1.

Find: Time e nroute

- Time

Speed - Distance

"Time, speed and di~tanre problems are solved with the CR Computer in the conventional manner ... using the out!>idc scales on the calculator side. For the benefit ol tho~e 'knot so inclined,' the CR is 'knot knecessarily knaULical' and you can get perfectly good an~wers in ~! PH and stattHe. Let's run through ~ome quickies so's you won't figure 'Ole Sharp' is spoofi ng you.

" fi rst a word about reading the sca les o n the C R. Each figure on the outer scales of the compu ter can stand for any number containing the given digits. T he poim marked '40' ca n ~tand lor .I, -1, 40, 400, etc. You must d etermine, from the given problem, which value is correct."

2

Fig. 1

Given: Oi~tanre.........................210 :\[i. Time....... ?????????????????-????50 ~1 in.

Find: Ground ~peed

Fig. 2

A To find di\tanre il you are given ground spe('(l and time, pl~re

time index

oppmite ground speed and read di~tance on outside

,lale oppo~ite time on imide scale.

3

Problems 1 (Sec page 57 ror an~wt?r~)

T im('

c;,mud sp(?(?d

I.

: ~2

180 kt~ .

2.

:I~

3.

:l?ltl kt~.

4.

I :?10

IIi~ .\II'H

5.

:30

fl.

I i i ~II'H

/)istanre

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