Coastal multipath without the travel budget

Coastal clutter is emotionally loud in real data and analytically quiet in bad simulations. We bias toward documented assumptions: sea state, ducting toggles, and guard bands on small RCS families. Instructors can still stress trainees; they cannot smuggle undocumented physics.

Quarterly drops keep libraries fresh without forcing reinstall weekends. Customers diff checksums, not giant binaries.

Finally, pair EchoDrift with a live range plan—even a reduced one—so operators know which cues are modeled versus measured.