Required Parameters for Resistance Calculation Methods

Resistance Method

Data

Defaults (metric)

Holtrop & Mennen

Guldhammer and Harvald

Dankwardt

van Oortmerssen

BSRA Methodical Series

Series 60

Takashiro

Taylor-Gertler

Radojcic (Series 62 Hull Form)

Radojcic (Series 65 Hull Form)

Savitsky

Round Bilge - Monohull

Round Bilge - Catamaran

ZIPS - Hard CHine Catamaran

Pham - Hard Chine Catamaran

Draft Aft

Design Draft

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

Draft Forward

Design Draft

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

Transom Area

0.0

4

Length WL aft of AP

0.0

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

Bulb length fwd of FP

0.0

4

4

Bulb section height

0.0

4

4

4

4

Bulb centroid height

0.0

4

CB

0.7

4

4

4

4

4

4

4

4

4

4

4

4

4

LCB from midships

0.0

4

4

4

4

4

4

4

4

4

4

4

4

CM

0.985

4

4

4

4

4

4

4

4

4

Chine length (Lp)

85% LPP

4

4

Mean beam over chines

80% Beam

4

4

Deadrise angle at 50% Lp

20.0

4

4

Wetted surface area

Calculate

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

CWP

Calculate

4

4

4

1/2 entrance angle

Calculate

4

4

Demi-hull breadth

3.0

4

4

4

Angle of transom wedge

12.0

4

Viscous resistance form factor

0.4

4

Deadrise angle

15.0

4

4

4