CaptainsGround
Ground school for the helm.
Pass your USCG Captain’s exam — OUPV (Six-Pack) or Master 100 GT — without the fluff. Every fact is drilled against 33/46 CFR, COLREGs, and Bowditch, with citations you can verify. Free during early access.
Cited, not invented
Every lesson and drill question links to the rule it tests — 33 CFR §83.06, COLREGs Rule 5, Bowditch Ch. 7. No mystery facts.
Mock exams that match the NMC
70 questions × 90 minutes, weighted by module. Practice on the form your REC actually uses.
Plan that fits your weeks
Tell us your exam date and weekly hours. We sequence Rules of the Road first and reserve the final week for full mocks.
Spaced flashcards (FSRS)
The hardest topic this week becomes the lightest by exam day.
Free during early access. We’ll introduce paid tiers later; early users get grandfathered terms.