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The Schooner Bertha L. Downs (Anatomy of the Ship) by Basil Greenhill

By Basil Greenhill

The North American schooner "Bertha L. Downs" used to be one of the huge four-, 5- and six-masted schooners which have been outfitted at the banks of the Kennebeck River on the finish of the nineteenth and the start of the twentieth centuries. those large wood vessels have been nearly universally hired within the coastal alternate and the imperative a part of this used to be coal from Virginia to New England. She was once introduced in 1908 and, after a few ten years within the lumber and coal exchange, used to be offered to Danish proprietors and renamed "Atlas". Like a few her contemporaries she used to be in a position to make a ecocnomic residing during the Nineteen Twenties and 30s. She was once ultimately damaged up in Germany after forty two years of labor lower than 5 flags. this is often the 1st quantity within the "Anatomy of the send" sequence to explain a wide coastal buying and selling vessel - a boat style which holds a selected romance for send modellers and people attracted to the final days of sail.

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Extra info for The Schooner Bertha L. Downs (Anatomy of the Ship)

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Indd 39 7/15/2010 10:48:22 AM 40 CELESTIAL NAVIGATION In east longitude, adjust the minutes of longitude so that when added to the minutes and seconds of the Sun’s GHA they add up to a whole number. It’s as simple as that. 7 271° AZIMUTH AND INTERCEPT A working page from Volume 3 of AP3270 will be found on page 35. Notice that the top right-hand corner gives the latitude 49°. There is a different set of pages for each latitude. Which page of the set you choose is decided by the top central legend, which in this case reads ‘Declination (15°–29°) SAME name as latitude’.

Indd 27 In coastal waters the scale may well allow a sight to be plotted directly onto the working chart. On an ocean chart, the width of the pencil line becomes a significant factor and accurate plotting is impossible. Instead, use a plotting sheet. These can be made up yourself, but they are so cheap to buy that I always kit up with a sheaf before I set sail. So long as a quality eraser and a sharp 2B pencil make up your plotting kit, they are recyclable, so don’t worry about having enough to last the voyage.

Grab what you can when you can. 7 Look up the star’s altitude for the current LHA of Aries and set your sextant to this figure. Then hang your handbearing compass round your neck and nip up on deck. Use the compass to look down the azimuth of the star (don’t forget to allow for magnetic variation: azimuths are in degrees True), then ‘fix’ the direction with a cloud, or star, or ship, or something. If there is nothing, you’ll just have to concentrate harder. Now look towards the horizon in that direction through your pre-set sextant.

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