Page 49 - Practical Ship Design

20 Chapter I

- Taylor
- Series 60
- BSRA methodical series
- Guldhammer and Harvald
- Holtrop and Mennen

For small displacement ships, tugs, etc.:
- Van Oortmerssen

For stern trawlers:
- Dankwardt

For fast craft NPL round bilge craft analysis:
- Davidson Regression for round bilge and hard chine craft
- Savitsky Planing prediction for planing craft.
Some of the programs have limits on hull parameters and Froude number.
In general, the ITTC’78 performance prediction method is used, but the user has
the option of modifying the hull factor if he wishes. A number of these methods are
discussed in Chapter 6.

(1 6) Propulsion factors and propeller characteristics
Again most programs allow a choice of the data and methods used for these
calculations.
Propulsion characteristics:
- Series60
- BSRA Methodical series
- Van Oortmerssen
- Holtrop and Mennen
Propeller characteristics:
- Wageningen B-series
- Gawn-Burrill series.

1.3 SHIP DESIGN DATA

1.3.1 Collecting data and making use of it

A task to which all naval architects should devote a lot of time and attention
throughout their career is the accumulation of data of all sorts relevant to their
work. From the start they should set wide bounds to their interests. Even a naval
architect who plans to spend his life designing one type of ship should collect data