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Beschrijving
Master the IALA Maritime Buoyage System with DatumMark, a comprehensive reference and revision tool for mariners, sailing students, and anyone preparing for RYA, ISA, or coastal navigation examinations.
COMPLETE IALA MARK REFERENCE
All 12 mark types of the IALA Maritime Buoyage System, covering lateral, cardinal, isolated danger, safe water, special, and emergency wreck marking buoys. Each mark includes full specifications: hull colours, shapes, topmark configurations, light characteristics, and their navigational meaning.
BOTH IALA REGIONS
Switch between Region A (Europe, Africa, Asia, Australasia) and Region B (Americas, Japan, Korea, Philippines). Lateral marks update automatically to reflect the correct colour conventions for your region. Cardinal and all other mark types are displayed identically, as per the international standard.
ANIMATED LIGHT CHARACTERISTICS
Every light rhythm is animated to IALA specification — flashing, quick, very quick, ultra quick, isophase, occulting, Morse code, long flashing, and alternating sequences. See exactly how each light behaves at night, with correct flash rates and group patterns including composite sequences like Fl(2+1) and VQ(6)+LFl.
INTERACTIVE BUOY DIAGRAMS
Rendered buoy illustrations showing accurate hull colours, horizontal and vertical banding, topmark shapes and orientations, and animated navigation lights — all drawn to IALA standard against a sky and sea background for clarity.
QUICK REFERENCE CARD
A single-screen summary of every mark — colour, topmark, and light character at a glance. Like the laminated reference card on your chart table, always in your pocket.
EXAM QUIZ MODE
Three quiz modes to test your knowledge:
Identify the Mark — recognise a buoy from its visual appearance
What Does It Mean? — match marks to their navigational meaning
Light Character — identify light rhythms from animated sequences
Ten questions per session with immediate feedback, explanations, and a pass/fail score against the RYA threshold of 7/10.
REFERENCE SECTIONS
Browse all light rhythms with descriptions and abbreviations, buoy shapes with their usage, and topmark types with the marks they belong to.
NIGHT VISION MODE
Three display themes: Amber, Green, and Red. The red theme preserves scotopic (night-adapted) vision, suitable for use on the bridge during hours of darkness.
DESIGNED FOR MARINERS
DatumMark is part of the Datum series of informational apps. Built for clarity, accuracy, and quick reference — whether you are revising for an exam, refreshing your knowledge before a passage, or settling a debate in the cockpit.
This application is provided for educational and revision purposes only. Always consult official charts, publications, and up-to-date notices to mariners.
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- Platforms: iOS Apps (15)
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Aanvullende informatie
- Versie: 1.0
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iOS Apps›Naslagwerken - Besturingssystemen:
iPad,iPhone,iOS 26.2 en hoger - Grootte:
3 Mb - Ondersteunde talen:
English - Beoordeling van content:
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«DatumMark». Platform: iOS. Categorie: Naslagwerken. Ontwikkelaar: «Stuart Woolley». Eerste uitgave: . Laatste update: . Huidige prijs: $0.99. Laagste geregistreerde prijs: $0.99. Hoogst geregistreerde prijs: $0.99. Deze titel heeft nog geen beoordelingen of recensies ontvangen op AppAgg. Beschikbare talen: English. AppAgg houdt de prijsgeschiedenis, beoordelingen en gebruikersfeedback bij «DatumMark». Volg toekomstige kortingen en updates via RSS. AppAgg host geen applicaties en distribueert geen software. Alle handelsmerken, logo's en screenshots zijn eigendom van hun respectievelijke eigenaren.
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