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    Re: Triangle of velocities solver?
    From: Gary LaPook
    Date: 2017 Jun 29, 04:05 +0000
    My guess is that it is an "angle solver" for torpedo computations.

    gl



    From: David Pike <NoReply_DavidPike@fer3.com>
    To: garylapook---.net
    Sent: Wednesday, June 28, 2017 10:54 AM
    Subject: [NavList] Triangle of velocities solver?

    Any idea what these are?  ebay [...] MARINE-RELATED-ITEMS. There are two Capt Fields Pattern parallel rules.  The metal bit looks like it’s from a ‘Bigsworth Board’, but what about the celluloid item?  It looks like some complicated analogue device to solve the triangle of velocities, but how does it work, and why are the tide/wind arrows on a slant? DaveP


       
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