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True Wind Speed (TWS) & Angle (TWA) from Apparent Wind Calculator

Easily calculate and compute true wind speed (tws) & angle (twa) from apparent wind calculator with accurate equations, live formulas, and expert guidance.

Calculated Result
13.2 knots

True Wind Speed (TWS)

True Wind Speed (TWS)

13.2 knots

True Wind Speed Knots

13.2

True Wind Angle Degrees

61.5

Sailing Point Of Sail

Close Reach

13.2 — knots

Calculation Breakdown

  1. Applied FormulaResolves vector trigonometry between the masthead anemometer apparent wind and forward boat velocity to compute actual meteorological true wind.\text{TWS} = \sqrt{\text{AWS}^2 + V_b^2 - 2\,\text{AWS}\,V_b \cos(\text{AWA})}

True Wind Calculator Metric Output

Interactive visualization based on your current inputs

Calculated Value
0.03.36.69.913True Wind Speed (TWS)

What Is the True Wind Speed (TWS) & Angle (TWA) from Apparent Wind Calculator?

This tool computes true wind speed (tws) & angle (twa) from apparent wind calculator with high precision arithmetic.

How Does the True Wind Speed (TWS) & Angle (TWA) from Apparent Wind Calculator Work?

Resolves vector trigonometry between the masthead anemometer apparent wind and forward boat velocity to compute actual meteorological true wind.

True Wind Speed (TWS) & Angle (TWA) from Apparent Wind Calculator Formula & Variables

The core mathematical equation utilized by this calculator is expressed as:

TWS=AWS2+Vb2−2 AWS Vbcos⁡(AWA)\text{TWS} = \sqrt{\text{AWS}^2 + V_b^2 - 2\,\text{AWS}\,V_b \cos(\text{AWA})}

Resolves vector trigonometry between the masthead anemometer apparent wind and forward boat velocity to compute actual meteorological true wind.

How to Use the True Wind Speed (TWS) & Angle (TWA) from Apparent Wind Calculator

  1. Enter your parameters into the designated input fields to calculate the result immediately.

Step-by-Step Example Calculation

True Wind Speed (TWS) & Angle (TWA) from Apparent Wind Calculator Example

Input Values:

apparentWindSpeedAws:18
apparentWindAngleAwa:40
boatSpeedSog:7.5
Worked Steps: Sample evaluation based on standard reference conditions.

Understanding Your Result

The calculated primary figure indicates the optimal or required knots.

Factors That Affect the Result

  • Measurement tolerances, operational variance, and real-world conditions.

When Should You Use This Calculator?

  • Everyday budgeting, technical homework, professional estimation, and household projects.

Assumptions & Limitations

  • Assumes standard atmospheric or environmental parameters unless specified.

Frequently Asked Questions

Calculation Accuracy & Reference Note

Double-precision IEEE 754 arithmetic with validated empirical constants.

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