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    Re: Longhand Sight Reduction
    From: Francis Upchurch
    Date: 2014 Jun 13, 05:08 -0700

    Thanks Hanno,

    your language is perfectly clear! Just my maths are not, likewise my technical drawing with design details. (see attached).

    I have attached 2 PDFs of the original Fuller scales done by Wayne Harrison some years ago. I'm sure he wont mind you using them.They will need to re-sized for whatever size tubes you use. I tried to send the miniFuller condensed scales, but these were huge 60mb files, having been heavily edited in Photoshop 7. If you want those, may have to send on disk when I get out of hopsital. (few weeks)

    I've never measured the length if the scales, but I think the original fuller scale is 41feet long.

    I have found the main accuracy issue is to get the height of the scales exactly the same otherwise you get mis-alignement.

    Hopefully, I'll be back in action soon and be able to help more.

    Best wishes to All

    Francis



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