The combat/weapons systems smooth log is simi-
lar to the former battery smooth log. and fire-control
smooth log, among others. Thus, the combat/weapons
systems smooth log is the title that maybe applied to
all smooth logs that are required to be kept.
Most often, the combat/weapons systems log con-
tains sections devoted to alignment, erosion, rounds
fired, radar, and exercises and rounds fired.
Alignment: Includes summaries of alignment
data for fire-control systems, train checks, bench-
marks established and recorded, roller-path com-
pensator settings, horizon checks, radar antenna align-
ment records, etc.
Erosion: Includes star gage data, erosion gage
data, equivalent service rounds (ESRs), pseudo-equiv-
alent service rounds (PESRs), and records of bore
Rounds Fired: Includes entries in tabular form
for gun barrels by serial numbers, which show rounds
fired, types of projectiles, powder charges, powder
indexes, and ESRs.
Radar: Includes dates and results of radar
adjustments, collimations, calibrations, double-echo
checks, and any corrective measures taken, such as the
negative range zero set from the results of the double-
Exercises and Rounds Fired: Includes dates
and types of exercises or action firings, overall results,
complete summaries for unsatisfactory firings, correc-
tive measures taken, and listing of the arbitrary
corrections to hit (ACTH) or any other initial spots
that were used.
Alignment data must be documented on comple-
tion to provide information for future checks and to
inform responsible personnel of equipment and sub-
system alignment status. A complete and accurate
alignment data package is essential for effective com-
bat systems alignment.