From a MS belonging to Sir John Paston, transcribed for the Hakluyt Society. Date is sometime mid 15C, say 1450 ish. See 15C Hakluyt Sailing directions for the circumnavigation of England, and for a voyage to the straits of Gibraltar See original for better text. From Kirkleholmys to Orfordnesse and […]
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Sailing directions for the circumnavigation of England, and for a voyage to the straits of Gibraltar. (From a 15th century ms.) Mentions Waynes and Weirs at Orwell Haven (Fish wiers?)
15C Hakluyt Sailing directions for the circumnavigation of England, and ...
Off the Debensoundings site takes you here.
Deben entrance latest Sentinel image
https://babel.hathitrust.org/cgi/pt?id=mdp.39015081885843&view=1up&seq=40 google version Buoys are Black Cones R or R/W cans
1951/60 England East Coast USNO Directions
Google Books Has a good description of shoals. Shows SHMs such as Cutler being Red Cones. Some good Middle Ground Buoys at Gabbard. 19 feet into Harwich. Description of Deben. Submarine Bells
1915 USNO England East Coast Pilot Harwich extract
Thanks to https://thames.me.uk/sailing1817.htm and on Google \books THE SWIN AND KING’S CHANNEL Buoy on the Middle, No 3, black3 fathoms starboard. Whitaker Spit buoy, red, with staff and triangular vane3 fathoms larboard. South buoy of the Swin Spitway, blacklarboard. Gunfleet beaconlarboard. Gunfleet buoy, No. 9, black4 fathoms larboard. Middle hook […]
1817 Norie Sailing Directions Nore to Orfordness
Available as a book or on Google Books.
2004 The Essex Coastline then and now
On Google books Good description buoys and channels.
1844 The improved coaster’s guide, and Marine board examination, for ...
The Mariner’s Mirror podcast has now launched from the SNR. First episode is promising and this should be a good series. No annoying ads so far.
Mariner’s Mirror podcast
Chartlets from 2010 to 2019 no survey in 2020 due to COVID.
Deben Entrance year by year
French site with lots of material not yey explored.
Free Nautical Charts
Available on Hathitrust The Way of a ship
1937 The way of a ship; an essay on the ...
Here are the two Furled Sails podcasts where Marvin Creamer describes the techniques he used for his voyage. He estimated the altitude of stars at meridian passage to establish latitude. This means estimating the Zenith, position, Zenith angle and when the star is on the meridian. Sounds tough! There is […]
Circumnavigation with no instruments
Go to Orwell School and turn left, follow sign to Picnic Site. Parking at this site is good and free. Room for 20+ cars. There is a 2.4m height restriction if the barrier is in place (not locked last time). Not far to the shore. The shore is shallow so, […]
Nacton Shore
First British Navigation Manual. Full text. How to do navigation. Lost – try here
1574 “A regiment for the sea” William Bourne
Includes the Deben and some notes on distances. See here.
1635 Mercator Atlas of the World
History here and online maps here.
Soviet Maps
Extensive, need to pay.
L Brown Map Digital Collection
https://suffolkinlets.wordpress.com/
Suffolk Inlets
Here
1752 Thames Chart
By Captain Washington. 1852 A new chart of the River Thames. With its entrances
1852 A new chart of the River Thames. With its ...
The least depth is 1.9m between halfway point and Swin Spitway SWM. Really want 3m least which needs a Walton tide of 1.6m for comfort, 1.1m if calm. It seems to shelve gently, safer water to the east. Likely to be worst when going South so at Wallet Spitway we […]
Swin Spitway
Source: Survey Open Data
Survey Open Data Updated
For planning and reducing Stars the “249 vol 1 Air Tables Seven Stars all latitudes” is used, work out the LHA for the given time by adding the GHAaires to the Longitude and use that to enter the table for the appropriate latitude. This will tell you which stars to […]
Sight Reduction Tables for Celestial Navigation
Excellent sight reduction for Sun, Moon, Planets, Stars. Software. LONG-TERM ALMANAC FOR SUN, MOON, AND POLARIS via Almanac. Umland’s free ebook is superb, on the same site.
Online sight reduction utilities
For sorting out what the astronomical time is, delta T etc. IERS Rapid Service/Prediction Center for Earth Orientation.