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posted: 4 May 2009 18:11 from: Martin Wynne
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Here's an unusual use for a couple of lengths of bullhead track: defford.gif © linked from: http://www.merlin.ac.uk/about/layman/merlin.html The 25-metre MERLIN radio telescope at Defford in Worcestershire, formerly part of the Royal Signals and Radar Establishment. "The equipment comprises two mobile and steerable radio telescopes with parabolic reflectors of 25 metres aperture designed to be capable of operating at high efficiency at any wavelength from several metres down to 10 centimetres. The radio telescopes can be moved along double sets of railway tracks placed on two of the runways of the former Defford airfield. The tracks extend to 750 metres from the intersection, and the baseline joining the radio telescopes can be set along any azimuth and have any length up to the maximum separation of about 1000 metres." © extract from 'Royal Radar Establishment, Malvern (Reports of Observatories)' in Quarterly Journal of the Royal Astronomical Society, Vol. 7, p.232. More informationhttp://www.merlin.ac.uk/about/layman/merlin.html Thanks to Chris Higley on the OS Maps email group. regards, Martin. |
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posted: 5 May 2009 09:59 from: Andy G click the date to link to this post click member name to view archived images |
I wonder what the large telescope at Jodrell Bank runs on as it utilises ex-Castle class bogies apparently. Andy |
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