Texas Instruments TI Programmable 59/Marine Navigation Module
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Texas Instruments TI-58/59 Marine Navigation Module
- Type: Optional Calculator Accessory
- Size: 5/8 x 3/4 inch / 1.6 x 2 cm
A special version of the TI-59 was once sold in a waterproof case, and came with this module. Of course, you could get the module without the waterproof case for those times you weren't sailing on water. The routines in this module are based on the book Calculator Navigation by Mortimer Rogoff (ISBN 0393031926).
Functions:
- Navigation Library Diagnostic
- Time-Speed-Distance with Current Sailing
- Distance Short of, beyond, or to Horizon
- Velocity Needed to Change Relative Position
- Velocity, VMG and Current Vectors (given two, calculate the third)
- Course to Steer and SMG (Planning)
- Distance Off One Object and Time of Nearest Approach
- CMG, SMG, CMG from Two Objects
- Course made Good from Three Bearings
- Dead Reckoning (because if you don't reckon it right, you'll be dead)
- Rhumbline (Mercator) Navigation
- Chart Initializtion (preload data for Lat/Lon programs to follow)
- Running Fix from One Object (Lat/Lon)
- Fix from Two Objects (Lat/Lon)
- Time of Sunrise/Sunset/Twilight
- Planet Location
- Star Identification
- Sextant Correction
- Sight Reduction (Sun)
- Sight Reduction (Moon)
- Sight Reduction (Planet)
- Sight Reduction (Star)
- Fix by Two Observations
- Time of Local Apparent Noon and Sun Lines
- Noon Sight Fix
- Great Circle Sailing
- Modified Wind
- SMG, CMG and Time to Lay-line
- Distance and Bearing to the Mark
- Unit Conversions
