About & Pics

Description

Nautical Calculator Pro is the most complete application that solves the navigation calculations

The main features are :

- Calculate Route (solves 2nd navigation problem)
- Calculate point on Rhumb Line (solves 1st navigation problem)
- Calculate point on Great Circle (solves 1st navigation problem)
- Calculate point on WGS84 (solves 1st navigation problem)
- Calculate Average speed
- E.T.A. calculation
- Route plan, for manual waypoints planning
- Waypoint route
- Route mix with parallel limit
- Rhumb Line Parallel/Meridian intersection
- Follow on same Rhumb Line route
- Opposite course rendez vous
- Route correction
- Calculate Amplitude at sunset and sunrise and magnetic compass deviation
- Compass detections
- Solves Drift problem
- Solves Tides problem
- Solves Tidal current problem
- Wind calculation with Beaufort classification
- ABC Tables (azimuth, initial course, right ascension with unknow star)
- Nautical almanac
- Celestial Navigation with position line
- Meridian transit
- Celestial observation
- Coastal navigation
- Wheel Over
- Draft survey
- Converter

In routes feature there is a world map: it isn't a nautical chart and is not for use as a saling chart, but as a simple general means of showing the courses through the water on earth, this map isn't for navigational purposes.
No need connection for show the map; the map will be downloaded only one time.
The map, for size limit, will be show for scale over 60-70 Nm.

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 $5.49 in Google Play

Screenshots

Nautical Calculator Pro screenshot 1Nautical Calculator Pro screenshot 2Nautical Calculator Pro screenshot 3Nautical Calculator Pro screenshot 4Nautical Calculator Pro screenshot 5Nautical Calculator Pro screenshot 6Nautical Calculator Pro screenshot 7Nautical Calculator Pro screenshot 8Nautical Calculator Pro screenshot 9Nautical Calculator Pro screenshot 10Nautical Calculator Pro screenshot 11Nautical Calculator Pro screenshot 12Nautical Calculator Pro screenshot 13Nautical Calculator Pro screenshot 14Nautical Calculator Pro screenshot 15Nautical Calculator Pro screenshot 16Nautical Calculator Pro screenshot 17Nautical Calculator Pro screenshot 18Nautical Calculator Pro screenshot 19Nautical Calculator Pro screenshot 20

Version History

Launched Sep 17, 2014 (over 4 years ago).

Releasing new versions every 18 days, on average.

Dec 06
2018
(Current)
Version 6.3

v6.3
- Added radiant angle conversion on feature: "Converter"
- Added meridional parts result on feature: "Point on Rhumb line"

Nov 14
2018
Version 6.2.2

v6.2.2
- Fixed some bugs

Oct 22
2018
Version 6.2.1

v6.2.1
- Fixed crash on Android Pie

Oct 17
2018
Version 6.2

v6.2
- Added stowage factor on converter
- Added single speed calculation on E.T.A.
- Added keel correction on Draft Survey

Aug 22
2018
Version 6.1.2

v6.1.2
- Fixed some bugs

Aug 01
2018
Version 6.1.1

v6.1.1
- Fixed some bugs
- Improved performance

Jul 02
2018
Version 6.1

v6.1
- Fixed some bugs

Apr 11
2018
Version 6.0.3

v6.0.3
- Increased speed calculation accuracy
v6.0
- Add feature Draft survey
- Add feature Compass detections
- save Amplitude calculation in Compass detections
- Added the ability to use Azimuth of the ABC tables to calculate the Compass Correction
- Add Angle format DD.DDDDDD°
- Improved performance
- fixed many bugs

Apr 05
2018
Version 6.0.2

v6.0.2
- Fixed bugs
v6.0
- Add feature Draft survey
- Add feature Compass detections
- save Amplitude calculation in Compass detections
- Added the ability to use Azimuth of the ABC tables to calculate the Compass Correction
- Add Angle format DD.DDDDDD°
- Improved performance
- fixed many bugs

Apr 04
2018
Version 6.0.1

v6.0.1
- Fixed bugs
v6.0
- Add feature Draft survey
- Add feature Compass detections
- save Amplitude calculation in Compass detections
- Added the ability to use Azimuth of the ABC tables to calculate the Compass Correction
- Add Angle format DD.DDDDDD°
- Improved performance
- fixed many bugs

Mar 29
2018
Version 6.0

v6.0
- Add feature Draft survey
- Add feature Compass detections
- save Amplitude calculation in Compass detections
- Added the ability to use Azimuth of the ABC tables to calculate the Compass Correction
- Add Angle format DD.DDDDDD°
- Improved performance
- fixed many bugs

Feb 15
2018
Version 5.9.2

v5.9.2
- fixed bug about wind calculation
- fixed bugs on share action in Android Oreo
- fixed minor bugs

Feb 05
2018
Version 5.9.1

v5.9.1
- perform optimizations, fix some bugs and correct translation errors

Jan 29
2018
Version 5.9

v5.9
- add on feature "Route Plan" mixed route
- Add feature "Route correction"

Jan 26
2018
Version 5.8.3

v5.8.3
- fixed bug about altitude correction
- fixed bug about wind calculation

Dec 11
2017
Version 5.8.2

v5.8.2
- fixed bug about when select star from sky-view on Nautical Almanac
- fixed bug about last function used
- fixed bug about map refresh on Route plan

Dec 10
2017
Version 5.8.1

v5.8.1
- fix calculation of rise and set of Sun and Moon

Nov 26
2017
Version 5.8

v5.8
- Add map in route features

Nov 16
2017
Version 5.7.3

v5.7.3
- Fix calculation on sextant correction for moon

Nov 14
2017
Version 5.7.2

v5.7.2
- Fix calculation on sextant correction
- Fix crash in Android Oreo, when use GPS

Nov 08
2017
Version 5.7.1

v5.7.1
- Fix crash
v5.7
- Add feature "Converter"

Oct 24
2017
Version 5.7

v5.7
- Add feature "Converter"

Oct 15
2017
Version 5.6.4

v5.6.4
- fix critical crash on old android version
- fix bugs

Oct 12
2017
Version 5.6.3

v5.6.3
- fix critical crash
v5.6
- Managed in feature "Route Plan" two kind of action (Planning and Execution)
- Managed in feature "Route Plan" many plan with save, load action

Oct 08
2017
Version 5.6.2

v5.6
- Managed in feature "Route Plan" two kind of action (Planning and Execution)
- Managed in feature "Route Plan" many plan with save, load action
- Improved performance

Sep 22
2017
Version 5.6.1

v5.6
- Managed in feature "Route Plan" two kind of action (Planning and Execution)
- Managed in feature "Route Plan" many plan with save, load action
- Improved performance

Sep 09
2017
Version 5.5.1

- Fixed bugs

Sep 03
2017
Version 5.5

#5.5
- In feature "Route plan", is possible manage manual timezone for each waypoints

Aug 24
2017
Version 5.4

#5.4
- Managed timezone also with half and quarter of hours
- In features with time management, timing fields( time, date, timezone, time format, etc...) is not visible when speed is zero

Aug 16
2017
Version 5.3.2

#5.3.2
- fix bug on features "Average speed" and "Nautical almanac"

Jul 29
2017
Version 5.3.1

#5.3.1
- fix bug on feature "Route plan"
#5.3
- Add feature "Route plan"

Jul 26
2017
Version 5.2.2

#5.2.2
- Fix bug on calculation of Average Speed
- Fix minor bug

Jul 11
2017
Version 5.2.1

#5.2.1
- Fix bug on calculation of waypoint
- Fix bug show Gps enable/disable always
#5.2
- Add feature "Tidal current"
- Add feature "Point on WGS84"
- Add on feature "Route" calculation for WGS84
- Add on feature "Nautical almanac" the interval of observation
- Show graph inside view of features: Route, Waypoint and Route mix
- Data exportable in PDF format
- Fix minor bug

Jul 09
2017
Version 5.2

#5.2
- Add feature "Tidal current"
- Add feature "Point on WGS84"
- Add on feature "Route" calculation for WGS84
- Add on feature "Nautical almanac" the interval of observation
- Show graph inside view of features: Route, Waypoint and Route mix
- Data exportable in PDF format
- Fix minor bug

Jun 18
2017
Version 5.1.6

#5.1.6
- Fix amplitude calculation

Jun 06
2017
Version 5.1.5

#5.1.5
- Improved graphics of route

May 25
2017
Version 5.1.4

#5.1.4
- Improved UI
- Fix bug in Wheel over calculation

May 16
2017
Version 5.1.3

#5.1.3
- Fix bug in altitude and LHA calculation
#5.1.2
- Fix crash in Nautical Almanac feature
- Fix bug in graph of Route Mix feature
- Improved UI

May 15
2017
Version 5.1.2

#5.1.2
- Fix crash in Nautical Almanac feature
- Fix bug in graph of Route Mix feature
- Improved UI

May 11
2017
Version 5.1.1

#5.1.1
- Fix crash in amplitude feature
#5.1
- The time format (UTC, Local ) is managed at the level of feature, not globally

Apr 30
2017
Version 5.0.3

#5.0.3
- Add final route calculation on Great circle calculation
#5.0.2
- Fix bug in Place management
- Fix bug in ETA
#5.0.1
- Fix bug in ETA
#5.0
- Fix terms in Rhumb Line Parallel/Meridian intersection
- Fix use gps position on ABC Tables
- Add on ABC Tables calculation of azimuth of Astro with ephemeris data
- Add feature "Wheel Over"
- Add time format 12h/24h selectable in feature ETA

Apr 20
2017
Version 5.0.2

#5.0.2
- Fix bug in Place management
- Fix bug in ETA
#5.0.1
- Fix bug in ETA
#5.0
- Fix terms in Rhumb Line Parallel/Meridian intersection
- Fix use gps position on ABC Tables
- Add on ABC Tables calculation of azimuth of Astro with ephemeris data
- Add feature "Wheel Over"
- Add time format 12h/24h selectable in feature ETA

Apr 19
2017
Version 5.0.1

#5.0
- Fix terms in Rhumb Line Parallel/Meridian intersection
- Fix use gps position on ABC Tables
- Add on ABC Tables calculation of azimuth of Astro with ephemeris data
- Add feature "Wheel Over"
- Add time format 12h/24h selectable in feature ETA

Apr 18
2017
Version 5.0

#5.0
- Fix terms in Rhumb Line Parallel/Meridian intersection
- Fix use gps position on ABC Tables
- Add on ABC Tables calculation of azimuth of Astro with ephemeris data
- Add feature "Wheel Over"
- Add time format 12h/24h selectable in feature ETA

Mar 31
2017
Version 4.9.2

#4.9.2
- Fix calculation on ABCTables feature

Mar 02
2017
Version 4.8.1

#4.8.1
- Improved insertion of data

Mar 01
2017
Version 4.8

#4.8
- Add feature E.T.A calculation
- Add feature Wind calculation with Beaufort classification

Feb 19
2017
Version 4.7

#4.7
- All angles (Coordinate, Declination, lha etc) in selectable format DD° MM' SS'' or DD° MM.MMM'.
- Add in Nautical Almanac feature Sky map in polar format.
- In Nautical Almanac feature is possible select astro body for running fix.
- Fix minor bug.

Feb 01
2017
Version 4.6.1

#4.6.1
- fix crash on change time format (UTC, Local)
#4.6
- fix bug calculation on the Celestial Navigation, Meridian Transit and Celestial Observation
- On Celestial Navigation, Meridian Transit and Celestial Observation show graph inside input\output data screen
#4.5.3
- fix bug calculation on the Rhumb line ellipsoidal
#4.5.2
- fix bug on Feature "ABC Tables"
#4.5.1
- Moved gps enable setting in side menu

Jan 31
2017
Version 4.6

#4.6
- fix bug calculation on the Celestial Navigation, Meridian Transit and Celestial Observation
- On Celestial Navigation, Meridian Transit and Celestial Observation show graph inside input\output data screen
#4.5.3
- fix bug calculation on the Rhumb line ellipsoidal
#4.5.2
- fix bug on Feature "ABC Tables"
#4.5.1
- Moved gps enable setting in side menu

Jan 23
2017
Version 4.5.3

#4.5.3
- fix bug calculation on the Rhumb line ellipsoidal
#4.5.2
- fix bug on Feature "ABC Tables"
#4.5.1
- Moved gps enable setting in side menu
#4.5
- Add new feature Coastal navigation
- Amplitude with ephemeris data
- Local angle hour with format selectable on input data.
- Gps data acquired from Google play service
- Improved user interface.
- Fix some bug
#4.4.2
- fix waypoint calculation
- fix wrong route type graphics
- improved acquisition gps position

Jan 12
2017
Version 4.5.2

#4.5.2
- fix bug on Feature "ABC Tables"
#4.5.1
- Moved gps enable setting in side menu
#4.5
- Add new feature Coastal navigation
- Amplitude with ephemeris data
- Local angle hour with format selectable on input data.
- Gps data acquired from Google play service
- Improved user interface.
- Fix some bug
#4.4.2
- fix waypoint calculation
- fix wrong route type graphics
- improved acquisition gps position
#4.4.1
- you can swap coordinate in "Rhumb Line Parallel/Meridian intersection"

Jan 10
2017
Version 4.5.1

#4.5.1
- Moved gps enable setting in side menu
#4.5
- Add new feature Coastal navigation
- Amplitude with ephemeris data
- Local angle hour with format selectable on input data.
- Gps data acquired from Google play service
- Improved user interface.
- Fix some bug
#4.4.2
- fix waypoint calculation
- fix wrong route type graphics
- improved acquisition gps position
#4.4.1
- you can swap coordinate in "Rhumb Line Parallel/Meridian intersection"

Jan 07
2017
Version 4.5

v4.5
- Add new feature Coastal navigation
- Amplitude with ephemeris data
- Local angle hour with format selectable on input data.
- Gps data acquired from Google play service
- Improved user interface.
- Fix some bug
#4.4.2
- fix waypoint calculation
- fix wrong route type graphics
- improved acquisition gps position
#4.4.1
- you can swap coordinate in "Rhumb Line Parallel/Meridian intersection"

Dec 19
2016
Version 4.4.3

#4.4.2
- fix waypoint calculation
- fix wrong route type graphics
- improved acquisition gps position
#4.4.1
- you can swap coordinate in "Rhumb Line Parallel/Meridian intersection"
#4.4
- add button for calculate Waypoints and Route Mix in Route feature
- improved acquisition gps position
#4.3.1
- fix error in "Route Mix", show the same coordinate for both of them vertices

Dec 02
2016
Version 4.4.2

#4.4.2
- fix waypoint calculation
- fix wrong route type graphics
- improved acquisition gps position
#4.4.1
- you can swap coordinate in "Rhumb Line Parallel/Meridian intersection"
#4.4
- add button for calculate Waypoints and Route Mix in Route feature
- improved acquisition gps position
#4.3.1
- fix error in "Route Mix", show the same coordinate for both of them vertices

Nov 10
2016
Version 4.4.1

#4.4.1
- you can swap coordinate in "Rhumb Line Parallel/Meridian intersection"
#4.4
- add button for calculate Waypoints and Route Mix in Route feature
- improved acquisition gps position
#4.3.1
- fix error in "Route Mix", show the same coordinate for both of them vertices
#4.3
- add drift calculation on "Drift" Feature
- fix minor bug in Route, Average Speed, Tides, Drift and ABC Tables Features

Nov 08
2016
Version 4.4

#4.4
- add button for calculate Waypoints and Route Mix in Route feature
- improved acquisition gps position
#4.3.1
- fix error in "Route Mix", show the same coordinate for both of them vertices
#4.3
- add drift calculation on "Drift" Feature
- fix minor bug in Route, Average Speed, Tides, Drift and ABC Tables Features
#4.2
- added skymap graph on Nautical almanac
- introduced the ability to use the GPS coordinates
- Local hour angle with selectable format 0-360 or 0-180E/0-180W

Nov 06
2016
Version 4.3.2

#4.3.1
- fix error in "Route Mix", show the same coordinate for both of them vertices
- fix minor bug
#4.3
- add drift calculation on "Drift" Feature
- fix minor bug in Route, Average Speed, Tides, Drift and ABC Tables Features
#4.2
- added skymap graph on Nautical almanac
- introduced the ability to use the GPS coordinates
- Local hour angle with selectable format 0-360 or 0-180E/0-180W
#4.1.3
- fix minor crash
#4.1.2
- fix crash on Celestial observation feature
#4.1.1
- fix minor crash

Oct 24
2016
Version 4.3

#4.3
- add drift calculation on "Drift" Feature
- fix minor bug in Route, Average Speed, Tides, Drift and ABC Tables Features
#4.2
- added skymap graph on Nautical almanac
- introduced the ability to use the GPS coordinates
- Local hour angle with selectable format 0-360 or 0-180E/0-180W
#4.1.3
- fix minor crash
#4.1.2
- fix crash on Celestial observation feature
#4.1.1
- fix minor crash

Oct 04
2016
Version 4.2

#4.2
- added skymap graph on Nautical almanac
- introduced the ability to use the GPS coordinates
- Local hour angle with selectable format 0-360 or 0-180E/0-180W
#4.1.3
- fix minor crash
#4.1.2
- fix crash on Celestial observation feature
#4.1.1
- fix minor crash
#4.1
- added feature Nautical almanac and Celestial observation
- ephemeris data added
- added location database with coordinates
- added two view (smart and completed) in Route feature
- fix minor bug

Sep 25
2016
Version 4.1.3

#4.1.3
- fix minor crash
#4.1.2
- fix crash on Celestial observation feature
#4.1.1
- fix minor crash
#4.1
- added feature Nautical almanac and Celestial observation
- ephemeris data added
- added location database with coordinates
- added two view (smart and completed) in Route feature
- fix minor bug
#4.0.6
- bug fixed in Route calculation

Sep 21
2016
Version 4.1.2

#4.1.2
- fix crash on Celestial observation feature
#4.1.1
- fix minor crash
#4.1
- added feature Nautical almanac and Celestial observation
- ephemeris data added
- added location database with coordinates
- added two view (smart and completed) in Route feature
- fix minor bug
#4.0.6
- bug fixed in Route calculation
#4.0.3
- UI with Material Theme
- Fix azimuth calculation on Celestial Calculation
- Fix calculation on Rhumb Line Parallel/Meridian intersection
- Improve performance

Sep 07
2016
Version 4.1.1

#4.1.1
- fix minor crash
#4.1
- added feature Nautical almanac and Celestial observation
- ephemeris data added
- added location database with coordinates
- added two view (smart and completed) in Route feature
- fix minor bug
#4.0.6
- bug fixed in Route calculation
#4.0.3
- UI with Material Theme
- Fix azimuth calculation on Celestial Calculation
- Fix calculation on Rhumb Line Parallel/Meridian intersection
- Improve performance

Jul 25
2016
Version 4.0.6

#4.0.6
- bug fixed in Route calculation
#4.0.4
- Fix calculation on Rhumb Line Parallel/Meridian intersection
- Optimized Celestian Navigation and Meridian Transit graph
#4.0.3
- UI with Material Theme
- Fix azimuth calculation on Celestial Calculation
- Fix calculation on Rhumb Line Parallel/Meridian intersection
- Improve performance
#3.5.2
- Fixed translation

Jun 21
2016
Version 4.0.4

#4.0.4
- Fix calculation on Rhumb Line Parallel/Meridian intersection
- Optimized Celestian Navigation and Meridian Transit graph
#4.0.3
- UI with Material Theme
- Fix azimuth calculation on Celestial Calculation
- Fix calculation on Rhumb Line Parallel/Meridian intersection
- Improve performance
#3.5.2
- Fixed translation
#3.5.1
- Add features on waypoint feature: add waypoint to fixed longitude on meridian
- Fixed crash

Jun 05
2016
Version 4.0.3

Jun 03
2016
Version 4.0.1

Jun 02
2016
Version 4.0

Mar 22
2016
Version 3.5.2

Mar 18
2016
Version 3.5.1

Feb 29
2016
Version 3.5

Feb 16
2016
Version 3.4.2

Dec 11
2015
Version 3.4

Dec 01
2015
Version 3.3

Oct 08
2015
Version 3.2

Nautical Calculator Pro performs calculations and produces graphs of various problems of navigation

The main features are :


- Calculate Route (solves 2nd navigation problem)
- Calculate point on Rhumb Line (solves 1st navigation problem)
- Calculate point on Great Circle (solves 1st navigation problem)
- Calculate Average speed
- Waypoint route
- Route mix with parallel limit
- Rhumb Line Parallel/Meridian intersection
- Follow on same Rhumb Line route
- Collision on same Rhumb Line route
- Celestial Navigation with position line
- Calculate Amplitude at sunset and sunrise and magnetic compass deviation
- Solves Drift problem
- Solves Tides problem



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Jun 10
2015
Version 3.1

Nautical Calculator Pro performs calculations and produces graphs of various problems of navigation

The main features are :


- Calculate Route (solves 2nd navigation problem)
- Calculate point on Rhumb Line (solves 1st navigation problem)
- Calculate point on Great Circle (solves 1st navigation problem)
- Calculate Average speed
- Waypoint route
- Route mix with parallel limit
- Rhumb Line Parallel/Meridian intersection
- Follow on same Rhumb Line route
- Collision on same Rhumb Line route
- Celestial Navigation with position line
- Calculate Amplitude at sunset and sunrise and magnetic compass deviation
- Solves Drift problem



follow on facebook
https://www.facebook.com/NauticalCalculator

Jun 04
2015
Version 3.0.3

Nautical Calculator Pro performs calculations and produces graphs of various problems of navigation

The main features are :


- Calculate Route (solves 2nd navigation problem)
- Calculate point on Rhumb Line (solves 1st navigation problem)
- Calculate point on Great Circle (solves 1st navigation problem)
- Calculate Average speed
- Waypoint route
- Route mix with parallel limit
- Rhumb Line Parallel/Meridian intersection
- Follow on same Rhumb Line route
- Collision on same Rhumb Line route
- Celestial Navigation with position line
- Calculate Amplitude at sunset and sunrise and magnetic compass deviation
- Solves Drift problem



follow on facebook
https://www.facebook.com/NauticalCalculator

May 27
2015
Version 3.0.2

Nautical Calculator Pro performs calculations and produces graphs of various problems of navigation

The main features are :


- Calculate Route (solves 2nd navigation problem)
- Calculate point on Rhumb Line (solves 1st navigation problem)
- Calculate point on Great Circle (solves 1st navigation problem)
- Calculate Average speed
- Waypoint route
- Route mix with parallel limit
- Rhumb Line Parallel/Meridian intersection
- Follow on same Rhumb Line route
- Collision on same Rhumb Line route
- Celestial Navigation with position line
- Calculate Amplitude at sunset and sunrise and magnetic compass deviation
- Solves Drift problem



follow on facebook
https://www.facebook.com/NauticalCalculator

May 25
2015
Version 3.0.1

Nautical Calculator Pro performs calculations and produces graphs of various problems of navigation

The main features are :


- Calculate Route (solves 2nd navigation problem)
- Calculate point on Rhumb Line (solves 1st navigation problem)
- Calculate point on Great Circle (solves 1st navigation problem)
- Calculate Average speed
- Waypoint route
- Route mix with parallel limit
- Rhumb Line Parallel/Meridian intersection
- Follow on same Rhumb Line route
- Collision on same Rhumb Line route
- Celestial Navigation with position line
- Calculate Amplitude at sunset and sunrise and magnetic compass deviation
- Solves Drift problem



follow on facebook
https://www.facebook.com/NauticalCalculator

May 23
2015
Version 3.0

Nautical Calculator Pro performs calculations and produces graphs of various problems of navigation

The main features are :


- Calculate Route (solves 2nd navigation problem)
- Calculate point on Rhumb Line (solves 1st navigation problem)
- Calculate point on Great Circle (solves 1st navigation problem)
- Calculate Average speed
- Waypoint route
- Route mix with parallel limit
- Rhumb Line Parallel/Meridian intersection
- Follow on same Rhumb Line route
- Collision on same Rhumb Line route
- Celestial Navigation with position line
- Calculate Amplitude at sunset and sunrise and magnetic compass deviation
- Solves Drift problem



follow on facebook
https://www.facebook.com/NauticalCalculator

Jan 21
2015
Version 1.2

Nautical Calculator Pro performs calculations and produces graphs of various problems of navigation

The main functions are :


DEAD RECKONING for Rhumb line and Great Circle Navigation, 1st problem: it helps navigator to determine his present position by projecting his past courses steered and speeds over ground from a known past position. He can also determine his future position by projecting an ordered course and speed of advance from a known present position. It does not allow for the effect of leeway, current, helmsman error, or gyro error.
Once latitude and longitude of a point are given, a route and a distance to go, the coordinates of the point of arrival are computed.


DEAD RECKONING for Rhumb line and Great Circle Navigation, 2nd problem: given the coordinates of departure and arrival, date of departure and speed, it calculates the routes and the distances of Rhumb lines and Great circles, the vertex coordinates, meridional parts, time spent in navigation and time of arrival.
Great-circle solutions for distance and initial course
angle are calculated.
A graphical representation is given.


DEAD RECKONING for Rhumb line and Great Circle Navigation:
The latitudes of points on the great-circle track is determined for equal Difference of Longitude intervals each side of the vertex, for equal DLo and DLa from point of departure, for equal no. parts Great Circle distance between points.
Time spent in navigation and time of arrival and a graphical representation is also shown.


Calculation of mixed Route : given the coordinates of departure and arrival and the parallel limit , calculate the coordinates of the two vertices the initial course and distance of the route with navigation mixed . This also shows a graphical representation .


Reducing a celestial sight to obtain a line of position
consists of some manual steps:
1. You correct the sextant altitude (hs) to obtain the observed altitude (ho).
2. You determine the body’s GHA and declination.
3. You select an assumed position and find that position’s local hour angle.
4. Input all the above, then Nautical Calculator Pro computes altitude and azimuth for the assumed position and time of the observation,
5. and compares computed and observed altitudes.
6. and plots the lines of position up to four stars, having calculated how much space they are moved ahead tacking into account the ship’s speed.
7. finally the fix coordinates are given
8.a beautiful graphic picture is shown


Compass Error By Azimuth Of The Sun at Sunrise and Sunset
As you input the latititude of the mariner and the sun’s declination and the measured sun’s azimut, the
computed azimuth to the azimuth measured with the compass immediately determines the compass error. No interpolation is necessary.


follow on facebook
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Jan 08
2015
Version 1.1.3

Nautical Calculator Pro performs calculations and produces graphs of various problems of navigation

The main functions are :


DEAD RECKONING for Rhumb line and Great Circle Navigation, 1st problem: it helps navigator to determine his present position by projecting his past courses steered and speeds over ground from a known past position. He can also determine his future position by projecting an ordered course and speed of advance from a known present position. It does not allow for the effect of leeway, current, helmsman error, or gyro error.
Once latitude and longitude of a point are given, a route and a distance to go, the coordinates of the point of arrival are computed.


DEAD RECKONING for Rhumb line and Great Circle Navigation, 2nd problem: given the coordinates of departure and arrival, date of departure and speed, it calculates the routes and the distances of Rhumb lines and Great circles, the vertex coordinates, meridional parts, time spent in navigation and time of arrival.
Great-circle solutions for distance and initial course
angle are calculated.
A graphical representation is given.


DEAD RECKONING for Rhumb line and Great Circle Navigation:
The latitudes of points on the great-circle track is determined for equal Difference of Longitude intervals each side of the vertex, for equal DLo and DLa from point of departure, for equal no. parts Great Circle distance between points.
Time spent in navigation and time of arrival and a graphical representation is also shown.


Calculation of mixed Route : given the coordinates of departure and arrival and the parallel limit , calculate the coordinates of the two vertices the initial course and distance of the route with navigation mixed . This also shows a graphical representation .


Reducing a celestial sight to obtain a line of position
consists of some manual steps:
1. You correct the sextant altitude (hs) to obtain the observed altitude (ho).
2. You determine the body’s GHA and declination.
3. You select an assumed position and find that position’s local hour angle.
4. Input all the above, then Nautical Calculator Pro computes altitude and azimuth for the assumed position and time of the observation,
5. and compares computed and observed altitudes.
6. and plots the lines of position up to four stars, having calculated how much space they are moved ahead tacking into account the ship’s speed.
7. finally the fix coordinates are given
8.a beautiful graphic picture is shown


Compass Error By Azimuth Of The Sun at Sunrise and Sunset
As you input the latititude of the mariner and the sun’s declination and the measured sun’s azimut, the
computed azimuth to the azimuth measured with the compass immediately determines the compass error. No interpolation is necessary.


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Dec 17
2014
Version 1.1.2

Nautical Calculator Pro performs calculations and produces graphs of various problems of navigation

The main functions are :


DEAD RECKONING for Rhumb line and Great Circle Navigation, 1st problem: it helps navigator to determine his present position by projecting his past courses steered and speeds over ground from a known past position. He can also determine his future position by projecting an ordered course and speed of advance from a known present position. It does not allow for the effect of leeway, current, helmsman error, or gyro error.
Once latitude and longitude of a point are given, a route and a distance to go, the coordinates of the point of arrival are computed.


DEAD RECKONING for Rhumb line and Great Circle Navigation, 2nd problem: given the coordinates of departure and arrival, date of departure and speed, it calculates the routes and the distances of Rhumb lines and Great circles, the vertex coordinates, meridional parts, time spent in navigation and time of arrival.
Great-circle solutions for distance and initial course
angle are calculated.
A graphical representation is given.


DEAD RECKONING for Rhumb line and Great Circle Navigation:
The latitudes of points on the great-circle track is determined for equal Difference of Longitude intervals each side of the vertex, for equal DLo and DLa from point of departure, for equal no. parts Great Circle distance between points.
Time spent in navigation and time of arrival and a graphical representation is also shown.


Calculation of mixed Route : given the coordinates of departure and arrival and the parallel limit , calculate the coordinates of the two vertices the initial course and distance of the route with navigation mixed . This also shows a graphical representation .


Reducing a celestial sight to obtain a line of position
consists of some manual steps:
1. You correct the sextant altitude (hs) to obtain the observed altitude (ho).
2. You determine the body’s GHA and declination.
3. You select an assumed position and find that position’s local hour angle.
4. Input all the above, then Nautical Calculator Pro computes altitude and azimuth for the assumed position and time of the observation,
5. and compares computed and observed altitudes.
6. and plots the lines of position up to four stars, having calculated how much space they are moved ahead tacking into account the ship’s speed.
7. finally the fix coordinates are given
8.a beautiful graphic picture is shown


Compass Error By Azimuth Of The Sun at Sunrise and Sunset
As you input the latititude of the mariner and the sun’s declination and the measured sun’s azimut, the
computed azimuth to the azimuth measured with the compass immediately determines the compass error. No interpolation is necessary.

Dec 16
2014
Version 1.1.1

Nautical Calculator Pro performs calculations and produces graphs of various problems of navigation

The main functions are :


DEAD RECKONING for Rhumb line and Great Circle Navigation, 1st problem: it helps navigator to determine his present position by projecting his past courses steered and speeds over ground from a known past position. He can also determine his future position by projecting an ordered course and speed of advance from a known present position. It does not allow for the effect of leeway, current, helmsman error, or gyro error.
Once latitude and longitude of a point are given, a route and a distance to go, the coordinates of the point of arrival are computed.


DEAD RECKONING for Rhumb line and Great Circle Navigation, 2nd problem: given the coordinates of departure and arrival, date of departure and speed, it calculates the routes and the distances of Rhumb lines and Great circles, the vertex coordinates, meridional parts, time spent in navigation and time of arrival.
Great-circle solutions for distance and initial course
angle are calculated.
A graphical representation is given.


DEAD RECKONING for Rhumb line and Great Circle Navigation:
The latitudes of points on the great-circle track is determined for equal Difference of Longitude intervals each side of the vertex, for equal DLo and DLa from point of departure, for equal no. parts Great Circle distance between points.
Time spent in navigation and time of arrival and a graphical representation is also shown.


Calculation of mixed Route : given the coordinates of departure and arrival and the parallel limit , calculate the coordinates of the two vertices the initial course and distance of the route with navigation mixed . This also shows a graphical representation .


Reducing a celestial sight to obtain a line of position
consists of some manual steps:
1. You correct the sextant altitude (hs) to obtain the observed altitude (ho).
2. You determine the body’s GHA and declination.
3. You select an assumed position and find that position’s local hour angle.
4. Input all the above, then Nautical Calculator Pro computes altitude and azimuth for the assumed position and time of the observation,
5. and compares computed and observed altitudes.
6. and plots the lines of position up to four stars, having calculated how much space they are moved ahead tacking into account the ship’s speed.
7. finally the fix coordinates are given
8.a beautiful graphic picture is shown


Compass Error By Azimuth Of The Sun at Sunrise and Sunset
As you input the latititude of the mariner and the sun’s declination and the measured sun’s azimut, the
computed azimuth to the azimuth measured with the compass immediately determines the compass error. No interpolation is necessary.

Sep 17
2014
Version 1.0

Nautical Calculator Pro performs calculations and produces graphs of various problems of navigation

The main functions are :


DEAD RECKONING for Rhumb line and Great Circle Navigation, 1st problem: it helps navigator to determine his present position by projecting his past courses steered and speeds over ground from a known past position. He can also determine his future position by projecting an ordered course and speed of advance from a known present position. It does not allow for the effect of leeway, current, helmsman error, or gyro error.
Once latitude and longitude of a point are given, a route and a distance to go, the coordinates of the point of arrival are computed.


DEAD RECKONING for Rhumb line and Great Circle Navigation, 2nd problem: given the coordinates of departure and arrival, date of departure and speed, it calculates the routes and the distances of Rhumb lines and Great circles, the vertex coordinates, meridional parts, time spent in navigation and time of arrival.
Great-circle solutions for distance and initial course
angle are calculated.
A graphical representation is given.


DEAD RECKONING for Rhumb line and Great Circle Navigation:
The latitudes of points on the great-circle track is determined for equal Difference of Longitude intervals each side of the vertex, for equal DLo and DLa from point of departure, for equal no. parts Great Circle distance between points.
Time spent in navigation and time of arrival and a graphical representation is also shown.


Calculation of mixed Route : given the coordinates of departure and arrival and the parallel limit , calculate the coordinates of the two vertices the initial course and distance of the route with navigation mixed . This also shows a graphical representation .


Reducing a celestial sight to obtain a line of position
consists of some manual steps:
1. You correct the sextant altitude (hs) to obtain the observed altitude (ho).
2. You determine the body’s GHA and declination.
3. You select an assumed position and find that position’s local hour angle.
4. Input all the above, then Nautical Calculator Pro computes altitude and azimuth for the assumed position and time of the observation,
5. and compares computed and observed altitudes.
6. and plots the lines of position up to four stars, having calculated how much space they are moved ahead tacking into account the ship’s speed.
7. finally the fix coordinates are given
8.a beautiful graphic picture is shown


Compass Error By Azimuth Of The Sun at Sunrise and Sunset
As you input the latititude of the mariner and the sun’s declination and the measured sun’s azimut, the
computed azimuth to the azimuth measured with the compass immediately determines the compass error. No interpolation is necessary.

Previous 3 versions
1

Total Ratings

5
1
4
0
3
0
2
0
1
0
150

Total Ratings

5
100
4
30
3
9
2
3
1
1