Addendum 3 to Volume I
This addendum addresses a number of inconsistencies between sidings shown on frame patterns and sidings specified on the List of Dimensions. As a general rule, the List of Dimensions should be considered the governing source for dimensional data and should be consulted before sizing any pieces. For convenience, siding dimensions were shown on the patterns. Placing dimensional data in more than one place is bad practice and usually results in inconsistencies, as it did with a number frame patterns. These inconsistencies and a few other minor issues have been corrected and revised patterns are attached. Patterns not included in the attached need no correction.
The sidings for cant and half frames given in the List of Dimensions are generalized. The specific sizes for each of these frames can be taken correctly from the patterns.
In virtually all cases, the corrected sidings differ from those on the original patterns by 1 or sometimes 2 inches (.014” to .028” actual). In most cases the pattern differences resulted from transitions to the reduced sizes at the ends of the hull, being taken at different stations than specified on the List of Dimensions. Since decisions on where to place these transitions was somewhat arbitrary, since size differences are small, and considering that most of the upper futtocks will be covered by outer planking, some may consider these corrections somewhat academic. However, this should not be license for inconsistencies in the information. I for one, consider precision to be important and regret these errors in the original package. All the addenda will be included on the CD in the next volume.
An updated pattern sheet for the bow timbers is also attached. The original labeled both sides stbd.