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    PIM: Precision Indication of the Meridian
    From: Douglas Denny
    Date: 2009 Aug 25, 12:34 -0700

    I mentioned a paper published in 1965 by Dr. T.L. Thomas regarding the gyro 
    theodolite: PIM  produced by BAC - British Aircraft Corporation.
    
    Mr. Peter Hakel  asked for reference to this paper so I have scanned it for 
    perusal here. It might be of interest,  though I hesitate to re-ignite the 
    debate on Coriolis and rotating (Earth) inertial space frames and forces 
    involved.
    
    It will be useful to have it stored here too for posterity as I expect the 
    original paper is difficult to obtain now.
    
    Douglas Denny.
    Chichester. England.
    
    File:

      
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