Simple Colregs vs RadarPlot

Stay prepared at sea with the Simple Colregs app – your reliable, offline companion for the International Regulations for Preventing Collisions at Sea (COLREGs), including the latest 2016 supplement (Rules 39, 40, 41). 1. Offline Access — No internet needed 2. Audio Guide for Rules 1–19 — Learn by listening 3. Lateral and Maritime Cards Whether you're studying for exams or navigating, this app keeps the COLREGs within easy reach. Clear and simple explanations with audio learning from 1-19. Your on-board reference when every second matters.

Master radar plotting through practical, interactive exercises. RadarPlot is a professional training tool for maritime cadets, deck officers and navigators learning the 6-minute plotting method, relative motion, CPA calculations and collision-avoidance maneuvers. PRACTICE RADAR PLOTTING • Record target range and bearing observations • Plot multiple radar targets • Use a North-Up stabilized radar display • Adjust plotting intervals and range scales • Zoom and pan without affecting calculations CALCULATE CPA AND TARGET MOTION • Automatically construct the Relative Motion Line • Calculate CPA, TCPA and relative speed • Determine the target’s true course and speed • Visualize own-ship and target-motion vectors • Practice the standard 6-minute plotting method PLAN COLLISION-AVOIDANCE MANEUVERS • Set a required minimum passing distance • Calculate course-only and speed-only solutions • Select the maneuver execution point • Display the Advanced Relative Motion Line • Compare alternative maneuvering decisions BUILT FOR MARITIME TRAINING Use built-in scenarios and answer-reveal tools to learn step by step or practise independently. Ideal for maritime academy students, deck officers preparing for examinations, navigators refreshing manual plotting skills and instructors demonstrating relative-motion geometry. Train smarter. Understand the plot. Make safer decisions.