Defence and security

The designs of our niche range of coastguard and naval vessels are based on our vast expertise in high-speed vessels, providing significantly reduced motions in high seas while maintaining excellent performance and operational capability.

Contact Us

Key contact

Noel Tomlinson - SSD

Head of Business Development

Southampton, UK

+44 (0)23 8022 6655

Defence and security

As well as main platform designs, we also deliver a turnkey, integrated service to meet other defence contract requirements such as C4i, ILS, Technical Manuals, Safety Case and Human Factors.

Our designs combine speed with excellent seakeeping and crew comfort. With speeds from 25 to 50 knots, our proven designs for high-speed patrol boats and theatre support vessels range from 10 to 80m. The hullforms used for our Seafighter hybrid Semi-SWATH and Hercules 150 designs provide exceptional seakeeping to provide improved motions and crew comfort.

Speed, seakeeping and crew comfort also define our advanced high-speed landing craft designs. Our MSV(L) design and recently contracted US Army MSV(L) are based on our innovative Caimen hullform.

We offer a comprehensive platform design service, have a rich heritage of naval architecture and have been involved in the design of numerous types of naval vessel including the new RN Queen Elizabeth class aircraft carriers, the Type 26 Frigate (through the Naval Design Partnering arrangement) and the Aegir® family of replenishment vessels including the UK MARS tankers. We are also involved in the design of both conventional and nuclear-powered submarines.


We have an ever-expanding range of proven vessel designs in our portfolio, including vessels ranging from 9m to 220m in length and speeds of up to 70 knots.


Technical Papers