Holtrop–Mennen Resistance (lite)

Transparent breakdown + exportable report. This version focuses on viscous terms & allowances; wave-making is heuristic.

Geometry (moulded, m)

Lpp (m)

B (m)

T (m)

S wetted (m²) ⓘ

C_B

C_P

C_M

C_WP

Transom area A_TR (m²)

Form factor k ⓘ

Appendages (Cd·A sum, m²) ⓘ

Air resistance (ρ_air·CdA, kg/m) ⓘ

Speed V (kn)

ρ water (t/m³)

ν kinematic (×10⁻⁶ m²/s)

~1.19 at 15°C seawater

Results at V = — m/s

Key numbers

Fn = —
Re = —
CF (ITTC-57) = —
1+k = — (k=—)
Wetted S = — m²

Resistance breakdown

Friction RF = — kN
Viscous (1+k)RF = — kN
Appendages RAPP = — kN
Correlation RA = — kN
Air Rair = — kN
Wave RW (heuristic) = — kN

Totals

R_T = — kN
P_E = — kW

Report: Holtrop–Mennen (lite) — single speed

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Detailed Calculation Trace

Fill inputs and hit “Run calculation”.

Exportable Report

Method: ITTC-57 friction, simplified Holtrop-style k & S, mild length-trend correlation allowance, heuristic wave term.