I recently had the good fortune to be allowed to view an archive of Swimmer Delivery Vehicles documents. It is held by the Historical Diving Society (Check them out! HDS website ) and covered several Cold War SDVs developed for the Special Boat Service (SBS) and Royal Navy Clearance Divers. Among the materiel were photocopies of old magazine articles collected by one of the leading engineers in the field, K.R. Tuson. I came face to face with an evolutionary missing link in the development of SDVs on both sides of the Atlantic. Read More >....
All articles
EMT Barracuda SDV
Revealed: FWS-1 to FWS-5 SDVs Read More >....
Covert Shores Book - progress update
The book is on time, currently undergoing final editing and proofing. I have yet to receive security Disclosure confirmation from the UK Gov but I am not expecting any surprises there. Read More >....

x-post - the-plucky-perch-hardy-frogman-steed
I came across this fantastic article n USS Perch, one of the first dedicated transport submarines for US Navy's elite UDT and SEALs Read More >....
Iconic Cold War artwork of Edward L Cooper
I miss the fantastic artworks which accompanied DIA (Defense Intelligence Agency) reports on Soviet developments in the 1980s. Artists such as Edward L. Cooper and Brian W. McMullin really brought the new equipment to life ... Read More >....

Nautilus - homage to Jules Verne
There are very few fictional submarines which have a place in Naval architecture history. The Nautilus, an electric powered submarine conceived in the 1860s by author and visionary Jules Verne stands out. It was a window into the future and possibly an influence on subsequent real world designs. This is my interpretation of the design... Read More >....
Spy Sub - USS Seawolf (SSN-575)
During the Cold War US Navy submarines conducted numerous spying missions off the Soviet coast. Few were as audacious as Operation IVY BELLS where underwater wire taps were placed on Soviet military communication cables deep within Russia's own back yard. Several specially modified US Navy nuclear submarines were employed, including the USS Seawolf. Read More >....
US Navy SEALs next generation SDV Mk.XI (SWCS)

Shallow Water Combat Submersible (SWCS) - US Navy's and USSOCOM's next generation SEAL Delivery Vehicle. Read More >....

Book Review - Operation Ivy Bells
Historical 'fiction' allows the author, former US Master Diver Robert G. Williscroft, to share the story of the most famous spy submarine mission of the Cold War. Read More >....
SDV news round-up
Latest Swimmer Delivery Vehicle (SDV) news from around the world.... Read more ->.....