Entirely unrelated, an email I just got you might find interesting:

Thank you for your feedback regarding Pub No. 9 – The American Practical Navigator (Bowditch).

NGA is presently working on a new 2017 edition.

The new edition will reintroduce the "entire" Mathematics chapter found in earlier editions (like the 1977 edition).

This includes the haversine tables (all 35 pages) and the four missing haversine formulae from Table 2115 in the 2002.