tamaya nc-77 Instruction Manual Download Page 1 | Manualshive

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Summary of Contents for nc-77

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Page 2: ...18 16 0 Apr 19 May 12 15 9 May 13 Aug 25 15 8 Aug 26 Sep 18 15 9 Sep 19 Oct 12 16 0 Oct 13 Nov 2 16 1 Nov 3 Dec 2 16 2 Dec 3 Dec 31 16 3 H P Venus Jan 1 Jul 23 0 1 Jul 24 Sep 10 0 2 Sep 11 Oct 3 0 3 Oct 4 Oct 19 0 4 Oct 20 Nov 29 0 5 Nov 30 Dec 14 0 4 Dec 15 Dec 31 0 3 H P Mars a Jan 1 Mar 19 0 2 Mar 20 Dec 31 0 1 ...

Page 3: ... cur rent 17 2 Finding the Course to steer and Speed to use to make good a given course and speed through a current 17 3 Finding the Course to steer at a given speed to make good a given course through a current 18 4 Traverse Sailing 18 5 Finding the Direction and Speed of True Wind 19 III TIDE AND STREAM Tidal Current 19 1 Finding the Height of Tide 19 2 Finding the Velocity of Stream Tidal Curre...

Page 4: ...rOgramming knowledge to learn to use this handy instrument Simply follow the dialogue instruction display which tells you at each step what data to feed in The principle of operation can be laarned without extended nudy by just looking at one exa nple for each problem comprehen sively illustrated in this in lruction manual EXTERNAL FEATURES Numeral K h 1 Sign Change K r ICA Connectin g Terminal K ...

Page 5: ... of Traverse Sailing mode key computes the Course to Steer and the Speed to Use to make good a given course and speed through a current mode key computes the Course to Steer at a given speed to make good a given course through a current mode key computes the Height of Tide at any selected t ime mode key computes tlie Velocity of Stream Tidal Cur rend at any selected time mode computes the True Alt...

Page 6: ...ut by Cel meters Celsius temperature and millibars pressure or m feet Fahrenhiet and inches of mercury In mode fFIJ it selects the input by meters or feet Fah inch DIALOGUE SYMBOLS AND THE MEANING Dialogue system makes the operation very easy by telling you at each step what data to feed in The answers are also accompanied by the symbols which specify the meaning I 35 ieS I L Ex Latitude 36 42 55 ...

Page 7: ...ht of Object 10 d Dist to Object I TIME ARC h ms h Hour Minute Second d Degree Minute 1 10 Minute c Course to Steer d Speed Thru Water c Set Toward d Drift c Course Made Good d Speed Made Good c Course to Make Good d Speed to Make Good c Set Toward d Drift c Course to Steer d Speed Thru Water c Cou rse to Make Good d Speed Thru Water c Set Toward d Drift c Course to Steer d Speed Made Good c d c d...

Page 8: ...h 06m 08s Enter 78 0102 12 0608 BASIC NAVIGATION PROGRAMS FOR DEAD RECKON ING AND PILOTING MERCATOR SAILING AND GREAT CIRCLE SAIL ING 1 Dead Reckoning by Mercator Sailing Dead Reckoning mode computes the latitude and longitude of the point of arrival Problem 1 Departure Point Lat Departure Point Long Course Distance 32 30 6N 118 36 2W 245 30 2BO Smiles Key 32 306 118 362 245 3 280 8 Display L o L ...

Page 9: ...t Iine on the Mercator chart It makes the same angle with all meridians it crosses and maintains constant true direction The Great Circle track is the shortest distance between any two points on the earth On the Mercator chart a great circle appears as a sine curve extending equal distances each side of the equator The comparison of rhumb line and great circle track is shown in the illustration 30...

Page 10: ...SO O east of the arrival point which is 174 28 0W II PLANE SAILING AND NAVIGATION THROUGH CURRENT AND WIND 1 Finding the Course and Speed Made Good through a current Current 1 mode computes the course made good and speed made good when the course to steer and speed through water are given and set and drift are known Problem 1 Key Display Answer Course to Steer 080 e O Course Made Good SS05S 9 Spee...

Page 11: ...O 16 51158 135 c 135 d O 33 7 d 33 7 c 142 118 33 7 135 d 48 3 fEl d 48 3 c 142 118 c 142 118 d O 16 11259 m d 48 3 c O 259 c 259 d O 16 1 d 16 1 c 161 297 101 d 43 5 16 1 259 0 More courses may be added by repeating the same process 5 Finding the Direction and Speed of True Wind Wind Direction and Speed lode computes the ru Wind Direction and True Wmd Speed when a ship IS taking a certain course ...

Page 12: ...tical miles in 1 hour and 35 minutes What is the ship speed 35 2 rrJ 1 35 El Answer 22 2 knots Problem 2 How long will it take to travel 125 nautical miles at ship speed of 21 5 knots 125 J 21 5 Elm Answer 5h48m5QS Problem 3 A ship travels at a speed of 18 3 knots for 5 hours and 45 minutes What is the distance traveled 18 3 RJ 5 45 El Answer 105 2 n m v TIME AND ARC TIME and ARC Computations Time...

Page 13: ...f 1999 Afterthis date the leap year and the number of days in each month must be taken into consideration when entering the day and month II PROPORTIONAL PARTS Interpolator Proportional Parts is used to find the exact GHA and DEC of a celestial body without using the INCRE MENTS AND CORRECTIONS pages of the Nautical Almanac It may be used as an interpolator in finding a LORAN LOP or for other gene...

Page 14: ...y adding GHA Aries and SHA of the star GHA star GHA Aries SHA of the star In this case GHA Aries is computed by NC 77 or found in the Nautical Almanac but SHA star must be found in the Nautical Almanac Star s DEC is also found in the Nautical Almanac GHA and DEC of Moon and planets are found in the Nautical Almanac Some navigators are accustomed to expressing LHA always as a positive value by appl...

Page 15: ...ent that a reasonably close match of the computed SHA and DEC values cannot be found in the STARS table it is possible that the body observed was actually a planet and the SHA values of the four navigational planets at the bottom of the STARS table of the daily pages also should be checked 1 Add if longitude is west 2 If the answer becomes negative add 360 to get SHA If the answer is greater than ...

Page 16: ...m the Nautical Almanac VI STANDARD SEXTANT ALTITUDE CORRECTIONS Problem 1 Problem 1 SUN0 mode computes the True Altitude by Standard Sextant Altitude Correction at 1QoC 1013 25mb 50 F 29 92 in Standard Altitude Corrections Sun Cey Dlopley A_Of Sextant Altitude Clower limb R o 34 50 8 34 508 R 34 508 Height of Eye 6 5 meter 12l 3ft I J I t O S D 16 3 Jan 2 19781 6 5 I t 6 6 Rr 34 483 Dip corrected ...

Page 17: ...ltitude by Variable Sextant Altitude Corrections when the use of varying tempera ture and atmospheric pressure is desired Problem 1 Sextant Altitude Sun s upper limb 5 20 2 Height of Eye 8 6 meters 121 3ft 1 Temperature _3 C 26 6 F Pressure 986mb 29 12 in S D 16 2 Key Display m R O 5 202 R 5 202 ht o 6 5 ht 6 5 n l ______ I _ 1 i _1 t o 3 t 3 P o 966 P 91 6 I L l________R _n_ i Q _ J E Sd O 0 162 ...

Page 18: ...lculation Problem 4 Key OispllY Not 231212 _ 2 CD 2 8J 4 22 8 23 lEiEi 64 2312 2 lEiEi 4096 261 _ 212 5 reciprocal calculation ProblemS Key Display No L _ m III 5 1 5 1 0 2 6 mixed calculation Problem 6 Key 5 121 x 8 3 16 2 m 5 I 12 18 3 16 4 lEi Ei 7 trigonometric calculation P obI 7 sin 63 tan 23 45 5 Key m 63E ru 23 465 l l 8 inverse trigonometric calculation Problema COI 1 0 5 sin I 0 2 Note K...

Page 19: ...ving Long 8 In Navigation mode when anyone of the conditions stated in above 1 2 or 3 occurs Note In all the cases 1 to 8 the memory retains the contents before the overflow error is detected BLOCKING OF INCORRECT DATA ENTRY In the following cases if obviously wrong data is attempted to be entered the program blocks it and asks the re entry of correct data without having to go back to the very beg...

Page 20: ...culation mixed calculation memory calculation sin x cos x tan x sin lx cos l x tan l x or Nautical Almanac Proportional Parts Altitude and Azimuth for celestial Line of Position Fix Dead Reckoning Course and Distance by Mercator Sailing or Parallel Sailing Course and Distance by Great Circle Sailing Vertex Lati tude on Great Circle Track True Wind Direc tion and Speed Navigation Through a Current ...

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