Design a battleship's armour scheme in cross-section, then fire real WWII guns and shells at it.
Click any armour plate in the drawing to change its thickness or material. Dashed outlines are empty positions you can armour.
Click the profile (or use ← → and Enter) to choose where to cut and fire: bow end, magazines, machinery or stern end. Heights are exaggerated.
Fire a round to see what happens. Each plate the shell meets is logged with its obliquity, the effective thickness at that angle and the velocity before and after.
Run the range sweep to plot curves.
Choose a design under “Compare two immunity zones” and press “Overlay the two zones”.
Run the gun matrix to compare every gun against this design.