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DCYC Calculators

DCYC Script was designed to calculate Different Nautical Calculations. The Hullspeed section was designed for sailboats. A few common terms and prefixes are below.

The Prefix LWL refers to the "Length Of Water Line" On Your Boat"

Remember hullspeed only works for boats that can't plane...
Private slips are charged by boat length or finger length whichever is longer.

Enter Length :
Enter Length :
Enter Length :
Enter Length :
Enter Length :
Enter Your LWL :
Enter The Wave Length :
Enter The Miles :
Enter The Kilometers :
Enter The Knots Value :
Enter The Knots Value :
Enter Water temperature :
Enter Water temperature :
Results:
Windchill Calculation
Enter in the air temperature ( Tair ) in degrees Fahrenheit and wind speed in mph, then click on the Calculate WC to compute the windchill ( WC ).                   
Tair mph


Heat Index Calculation
Enter in the air temperature ( Tair ) in degrees Fahrenheit and relative humidity ( RH ) in percent, then click on the Calculate HI to compute the heat index ( HI ).
Tair RH

Determine Your Tank Capacity With This Calculator

Enter length in inches here:
Enter width in inches here:
Enter height in inches here:
US gallons capacity is:

Use the calculator below to calculate anything else.



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DCYC Latitude Longitude Calculator.

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Compute true course and distance between points.

Enter lat/lon of points, select distance units and earth model and click "compute". Lat/lons may be entered in DD.DD, DD:MM.MM or DD:MM:SS.SS formats.

Lat1
Lon1
Input Data
Lat2
Lon2

Course 1-2
Course 2-1
Distance
Output

Distance Units: Earth model:

Compute lat/lon given radial and distance from a known point

Enter lat/lon of initial point, true course and distance. Select distance units and earth model and click "compute". Lat/lons may be entered in DD.DD, DD:MM.MM or DD:MM:SS.SS formats.

Lat1
Lon1
Course 1-2
Distance 1-2
Input data

Lat2
Lon2
Output

Distance Units: Earth model:

Spheroid

Enter "user defined" spheroid parameters here:

Major radius a (km): Inverse flattening 1/f:

Other Nautical Formulas

  • Hull speed (knots) = 1.34 x square root of waterline length (in feet)
  • Distance to Horizon (nm) = 1.17 x square root of height of eye (in feet above sea level) deck at about 5' above water on Creative Touch, assume 5' eye (10’ total height of eye), then 3.7 nm to horizon

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