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    Celestial Navigation Towers
    From: Bill Lionheart
    Date: 2020 May 6, 16:12 +0100

    I was looking at a nostalgia site for the Atomic Research
    Establishment at Harwell, where I grew up aged 0 to 5 years old. I was
    struck by this
    "The structures that look like silos appear to be the old RAF Harwell
    ‘Celestial Navigation Towers’. According to pages 28 – 29 of Nick
    Hance’s Harwell – the Enigma Revealed, these had been used to train
    wartime aircrews in night-time navigation, with mock-ups of the night
    sky projected onto their ceilings. The training equipment was removed
    from the towers in October 1945. At an unknown later date, one of the
    towers was relocated elsewhere on the Harwell site and used as a
    chemical engineering rig."
    They do look a bit like grain silos.   I have never heard of Celestial
    Navigation Towers. Are they a crude type of planetarium?  We have
    discussed practice facilities before but would these do any more than
    help train aviators to recognise stars?  I dont think they were there
    in my living memory. I remember fondly a huge van der Graaf generator
    that dominated the skyline.
    Bill Lionheart

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