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Planing Craft Hydrodynamic Lift & Drag (Savitsky Method) Calculator

Easily calculate and compute planing craft hydrodynamic lift & drag (savitsky method) calculator with accurate equations, live formulas, and expert guidance.

Total operational vessel mass.

Transverse beam measured at the chines.

Forward craft speed.

Transverse deadrise angle of V-hull at transom.

Calculated Result
1.1 kN

Hydrodynamic Drag

Hydrodynamic Drag

1.1 kN

Total Hydrodynamic Drag K N

1.1

Beam Froude Number Cv

3.32

Hydrodynamic Lift Coefficient Cl

4.253e-2

Equilibrium Trim Angle Deg

1.9

1.1 — kN

Calculation Breakdown

  1. Applied FormulaSolves the semi-empirical Savitsky method for prismatic deadrise planing hulls, predicting beam Froude number (Cv), running trim angle, and total hydrodynamic drag.C_{L0} = \tau^{1.1} (0.0120 \lambda^{1/2} + 0.0055 \frac{\lambda^{5/2}}{C_v^2}), \quad D = W \tan\tau + \frac{R_{Df}}{\cos\beta}

Savitsky Planing Hydrodynamics Metric Output

Interactive visualization based on your current inputs

Calculated Value
0.00.30.60.81.1Hydrodynamic Drag

What Is the Planing Craft Hydrodynamic Lift & Drag (Savitsky Method) Calculator?

This tool computes planing craft hydrodynamic lift & drag (savitsky method) calculator with high precision arithmetic.

How Does the Planing Craft Hydrodynamic Lift & Drag (Savitsky Method) Calculator Work?

Solves the semi-empirical Savitsky method for prismatic deadrise planing hulls, predicting beam Froude number (Cv), running trim angle, and total hydrodynamic drag.

Planing Craft Hydrodynamic Lift & Drag (Savitsky Method) Calculator Formula & Variables

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

CL0=τ1.1(0.0120λ1/2+0.0055λ5/2Cv2),D=Wtan⁡τ+RDfcos⁡βC_{L0} = \tau^{1.1} (0.0120 \lambda^{1/2} + 0.0055 \frac{\lambda^{5/2}}{C_v^2}), \quad D = W \tan\tau + \frac{R_{Df}}{\cos\beta}

Solves the semi-empirical Savitsky method for prismatic deadrise planing hulls, predicting beam Froude number (Cv), running trim angle, and total hydrodynamic drag.

How to Use the Planing Craft Hydrodynamic Lift & Drag (Savitsky Method) Calculator

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

Step-by-Step Example Calculation

Planing Craft Hydrodynamic Lift & Drag (Savitsky Method) Calculator Example

Input Values:

boatWeightKg:2500.0
chineBeamMeters:2.2
craftSpeedKnots:30.0
deadriseAngleDeg:18.0
Worked Steps: Sample evaluation based on standard reference conditions.

Understanding Your Result

The calculated primary figure indicates the optimal or required kN.

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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