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Planing Hull Dynamic Lift, Trim Angle & Resistance (Savitsky Method) Calculator

Easily calculate and compute planing hull dynamic lift, trim angle & resistance (savitsky method) calculator with accurate equations, live formulas, and expert guidance.

Total fully-loaded vessel weight.

Beam between port and starboard chines at transom.

Hull deadrise angle (typical deep-V is 15° to 24°).

Vessel forward speed in knots.

Center of gravity location forward of transom.

Calculated Result
8.5 °

Equilibrium Trim Angle

Equilibrium Trim Angle

8.5 °

Equilibrium Trim Angle Deg

8.5

Beam Froude Number Cv

3.18

Total Planing Resistance K N

7.11

Induced Drag Force K N

5.13

8.5 — °

Calculation Breakdown

  1. Applied FormulaComputes planing hull dynamic lift, equilibrium running trim angle (τ), wetted length, induced hydrodynamic drag, and required power via Savitsky equations.C_v = \frac{V}{\sqrt{g b}}, \quad C_{L\beta} = \frac{\Delta}{\frac{1}{2}\rho V^2 b^2}, \quad R_T = \Delta \tan\tau + \frac{1}{2}\rho V^2 S C_f

Savitsky Planing Lift & Trim Metric Output

Interactive visualization based on your current inputs

Calculated Value
0.02.14.36.48.5Equilibrium Trim Angle

What Is the Planing Hull Dynamic Lift, Trim Angle & Resistance (Savitsky Method) Calculator?

This tool computes planing hull dynamic lift, trim angle & resistance (savitsky method) calculator with high precision arithmetic.

How Does the Planing Hull Dynamic Lift, Trim Angle & Resistance (Savitsky Method) Calculator Work?

Computes planing hull dynamic lift, equilibrium running trim angle (τ), wetted length, induced hydrodynamic drag, and required power via Savitsky equations.

Planing Hull Dynamic Lift, Trim Angle & Resistance (Savitsky Method) Calculator Formula & Variables

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

Cv=Vgb,CLβ=Δ12ρV2b2,RT=Δtan⁡τ+12ρV2SCfC_v = \frac{V}{\sqrt{g b}}, \quad C_{L\beta} = \frac{\Delta}{\frac{1}{2}\rho V^2 b^2}, \quad R_T = \Delta \tan\tau + \frac{1}{2}\rho V^2 S C_f

Computes planing hull dynamic lift, equilibrium running trim angle (τ), wetted length, induced hydrodynamic drag, and required power via Savitsky equations.

How to Use the Planing Hull Dynamic Lift, Trim Angle & Resistance (Savitsky Method) Calculator

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

Step-by-Step Example Calculation

Planing Hull Dynamic Lift, Trim Angle & Resistance (Savitsky Method) Calculator Example

Input Values:

boatDisplacementKg:3500
chineBeamM:2.4
deadriseAngleDeg:18
runningSpeedKnots:30
longitudinalCgMetersFromTransom:2.6
Worked Steps: Sample evaluation based on standard reference conditions.

Understanding Your Result

The calculated primary figure indicates the optimal or required °.

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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