From the bridge
RSSPractical maritime compliance.
Plain-English writing for commercial operators — USCG rules, Sub M, STCW, cyber, and the free tools we built along the way. No regulatory fog. No SEO filler.
8 min read
CPA and TCPA Explained: The Collision-Avoidance Math Behind Vessel Traffic
Closest Point of Approach and Time to Closest Point of Approach are the two numbers every ARPA radar and collision-alert system computes. Here's what they mean, how the vector math works, and how dispatch software uses them.
#cpa-tcpa#collision-avoidance#arpa#ais
11 min read
USCG Navigation General Study Guide: Master Every Topic
Navigation General is the broadest module on any USCG license exam. This study guide covers compass correction, current sailing, tides, celestial basics, and electronic nav — in the right order.
#exam-prep#study-tips#navigation#uscg