Free essential training materials, revision packs, and practical advice tailored for merchant navy deck cadets and future bridge officers.
DCOne brings together practical guidance, revision resources and career support for Deck Cadets — helping you navigate college, sea phases, exams and the journey towards your first CoC.
Driven by passion
Created and run by Deck Cadets who understand the challenges of cadetship first-hand. DCOne brings together practical resources, useful guidance and real experiences from people going through the same journey.
Learn and Prepare
Access clear, easy-to-use revision resources, maritime topics and Orals preparation. Whether you're working towards an exam or brushing up before joining ship, everything is designed to make studying simpler.
Navigate your Career
Get guidance on what comes next. From college and sea phases to completing your cadetship and gaining your first Certificate of Competency, DCOne helps you understand the options and plan your future at sea.
Introducing.....
SEAOne represents the next chapter in our journey as the parent brand uniting maritime training. Under SEAOne, we bring comprehensive cadet support together into one unified hub, continuing to empower merchant navy trainees with shared knowledge, foundational study material, and essential maritime guidance.
While DCOne remains dedicated exclusively to deck cadets and navigation officers, our ecosystem is expanding. Looking ahead, ECOne will introduce specialised resources designed specifically for engineering cadets, ensuring every department has dedicated, community-driven support throughout their cadetship.