Construction

SPACECRAFT BOATS
Manufactured by Belpray Pty Ltd
All models constructed to the highest standards ensuring inherent safety and sea-going ability

Ph : 61 2 4950 4083
Fax : 61 2 4950 4124
Excerpt as published in F&B Magazine #175, March 2011

Q: Water Ballast compared to Reverse Chine as asked to Peter Webster (Editor of F&B)

A: The flooded keel system beats the deep vee and reverse chine(s)  design hands down, as far as stability at rest is concerned. No question. A royal flush to a pair of fours.
It is a very old design technique that suits ally construction, and is seriously hard to do in fibreglass.

Spacecraft were the first to introduce the water ballast / flooded tunnel system into plate aluminium  vessels in Australia.
Almost a decade before others had even thought about it.