ferrocement

  1. A

    British WW1 concrete build sailing merchant ships

    Dear Readers, I am well aware this ship isn't naval.. anyway I hope you don't mind me posting it here. Doing research and checking around some stuff over at the internet I accidentally across this vessel in some PDF file. Does anyone know more about this vessel or this project in general...
  2. cluttonfred

    Concrete submarines

    I am sure that many remember this Popular Mechanics article or one of the many like it back then on a rumoured type of Russian concrete sub with 200 mph Shkval rocket torpedoes: Concrete Submarines Cheap and deadly, these stealthy boats could shift the balance of naval power. December 1998...
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