Ballistics tables for spheres 7.5 to 25 mm (0.3 to 1 in.) in diameter
Abstract
A ballistic table was prepared based on modern sphere drag data. The table includes all four Siacci functions, S, T, I, and A. Methods for using the tables are summarized and examples given. Comparisons are made between this smallsphere table and the earlier 100yearold tables that were based on the drag of large spheres. Some historical background is given, construction of the table is described, and approximations for some ballistic quantities are discussed. Appendixes include summaries of the fundamental ballistic equations, the Siacci approximation, and Siacci formulas for various analytical drag functions.
 Publication:

Unknown
 Pub Date:
 January 1979
 Bibcode:
 1979btsm.rept.....M
 Keywords:

 Ballistics;
 Spheres;
 Tables (Data);
 Drag;
 Formulas (Mathematics);
 Functions (Mathematics);
 Physics (General)