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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Historical math and astronomy tables, LOCOMAT,7-place cylindricalslide rule
From: Gary LaPook
Date: 2015 Jun 16, 08:21 +0000
From: Peter Monta <NoReply_PeterMonta@fer3.com>
To: garylapook@pacbell.net
Sent: Monday, June 15, 2015 4:41 PM
Subject: [NavList] Re: Historical math and astronomy tables, LOCOMAT,7-place cylindricalslide rule
From: Gary LaPook
Date: 2015 Jun 16, 08:21 +0000
There are some minor differences in the sextant altitude correction tables but the major difference is that the 5th edition only covers latitudes up to 65 degrees and the 6th edition has an additional table covering from 65 degrees to the pole. So, if you are planning on sailing the Northwest Passage then you need the 6th edition.
gl
From: Peter Monta <NoReply_PeterMonta@fer3.com>
To: garylapook@pacbell.net
Sent: Monday, June 15, 2015 4:41 PM
Subject: [NavList] Re: Historical math and astronomy tables, LOCOMAT,7-place cylindricalslide rule
Hi Bruce,
The NavList archive has this on H. O. 208:
http://fer3.com/arc/m2.aspx/Link-PDF-Dreisonstock-HO-208-Sandstr%C3%B6m-may-2012-g19544
Glancing at the black-and-white PDF, it looks fine, and with reasonable care in thresholding would print well on a laser printer. It's the fifth edition---is there much difference between fifth and sixth?The NavList archive has this on H. O. 208:
http://fer3.com/arc/m2.aspx/Link-PDF-Dreisonstock-HO-208-Sandstr%C3%B6m-may-2012-g19544
Cheers,
Peter