HMS ColRegCards

Master the visual signals of the sea with HMS ColregsCards - your essential study companion for the International Regulations for Preventing Collisions at Sea (COLREGS/IRPCS).
WHAT YOU'LL LEARN
• Day Shapes - Identify vessels by their daytime signals
• Navigation Marks - Cardinal, lateral, and special buoys
• Lights on Vessels - Recognize vessels by their navigation lights at night
• Sound Signals - Learn manoeuvring and fog signals with synthesized audio playback
TWO LEARNING MODES
Reference Mode
Browse through beautifully illustrated flashcards. Each card builds your knowledge layer by layer - from the essential visual to real-world application. Swipe vertically through layers, horizontally between cards.
TEST MODE
Put your knowledge to the test with timed multiple-choice questions. Get instant feedback, retest on mistakes, and track your progress. Adaptive testing focuses on the cards you find hardest.
DESIGNED FOR MARINERS:
Perfect for recreational sailors, commercial seafarers, and anyone preparing for maritime navigation examinations. Whether you're new to the water or refreshing your knowledge, ColregsCards makes learning these crucial signals engaging and effective.
FEATURES
• Dark theme optimized for night study
• Works offline - study anywhere
• Progress tracking across devices (with free account)
• Interactive vessel light diagrams with 360° views
• Synthesized sound signals - hear real horn, bell, and gong sounds
Created by a team with over 100 years of combined Yachting and Teaching knowledge.
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