Seacad 5.1 [updated] Here

In 5.0, the initial connection between two nodes (ships) broadcast a distinct digital signature that was easily identifiable by electronic warfare (EW) suites.

Should you hunt down a copy of SeaCad 5.1 in 2026? seacad 5.1

: SeaCAD is typically "portable," meaning it runs from an executable file (SeaCAD.exe) within its folder rather than a traditional Windows installation. seacad 5.1