1. Welcome to 28DaysLater.co.uk - 28DL - The UK Urban Exploring / Urban Exploration / Urbex Forums.

    Asylums and Hospitals, High Stuff, Industrial, Leisure Sites, Residential Sites, Military Sites, Mines and Quarries, ROC Posts, Theatres and Cinemas, Draining, Underground Sites, European and International Sites, Leads, Rumours and News, Kit, Clothing, Equipment, Photography and Video sections plus a lot more.

    Please feel free to browse this website as a guest. Creating an account removes some ads, allows you to post replies, start new topics and threads, and gives you access to more features including bookmarking, live chat, messaging and notification systems.

    Create an account | Login | Request new password

Report - Sound Mirrors, Denge - August 2010

Discussion in 'Military Sites' started by agk, Aug 21, 2010.

  1. agk

    agk 28DL Regular User
    Regular User

    Joined:
    Nov 19, 2007
    Messages:
    45
    Likes Received:
    12
    In constrast to the existing reports on here in bright sunshine, here are some pictures taken in driving rain:(

    [​IMG]

    The remains of an experiment to detect the sound of aircraft approaching over the Channel before the invention of RADAR, the concrete sound mirrors are now Scheduled Ancient Monuments and slowly falling apart. The experiment was not very successful, struggling to distinguish aircraft from ships, and given the increasing speeds of aircraft the amount of advance warning was of little use.

    [​IMG]

    20 foot mirror, 1928

    [​IMG]

    [​IMG]

    30 foot mirror, April 1930

    [​IMG]

    [​IMG]

    200 foot wall, June 1930.

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    Bridge access to the island was arranged by SubBrit so no pole vaulting pictures today, sorry;)
     

    Remove this ad by donating or subscribing.

Draft saved Draft deleted
Loading...

Users Who Have Read This Thread (Total: 0)

Share This Page

Remove this ad by creating an account and logging in