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Paradise Cay Publications

SIGHT REDUCTION TABLES FOR AIR NAVIGATION Pub. No. 249 (HO-249)

SIGHT REDUCTION TABLES FOR AIR NAVIGATION Pub. No. 249 (HO-249)

Regular price $29.95 USD
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These tables were originally designed for air navigation, but they have become popular with sailors. Vol 2 and Vol 3 provide conventional sight reduction data, but Vol. 1 offers a faster more direct way to sight reduce stars. Many choose to have Vol 1 for star sight prediction, even if they user other methods for the reduction, because it shows the best 3 stars to use in any setting. Unlike Vol 2 and 3, which are permanent publications, Vol 1 is published every 5 years, labeled by the Epoch year, with the data being valid for the 2 years before and after the Epoch year.

Vol 2 and Vol 3 presented here are commercial reproductions of the official government files. Vol 1 is no longer produced by the US government, but commercial companies have taken on this production on their own. The page sizes are 10% smaller than the government editions, but notably less expensive. They have soft instead of hard covers; they are 8.5" x 11", about 1" thick. Shipping weight is 2.1 lbs. $29.95 per volume.

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