USCG Exam Prep
Interactive trainers
The calc- and recognition-heavy modules a written test can't teach — practiced hands-on, with exam-accurate math and a fresh problem every time. Each guide explains the skill and opens a free, interactive trainer.
Celestial Navigation & Sight Reduction
Sight reduction is the skill most candidates dread, because a written question can't show you the procedure. This walks the whole chain on a fresh sight every time.
Learn & practice →Radar Plotting & the Maneuvering Board
Two timed radar contacts give you everything: where the other vessel is really going, how close it will pass, and when. The board makes it geometry you can see.
Learn & practice →Vessel Stability — GM, GZ & Free Surface
Stability is easier to feel than to memorize. Heel a vessel with a slider and watch G, B, M and the righting arm move — then the numbers make sense.
Learn & practice →Tides & Currents — Height and Clearance
Will you clear the bar, or fit under the bridge? Tide work is just interpolation — once you can read the curve, the table problems fall out.
Learn & practice →Rules of the Road — Give-Way & Stand-On
Rules of the Road needs 90% to pass. Seeing the encounter develop — and watching a wrong turn cause a close-quarters situation — sticks far better than memorizing.
Learn & practice →Marlinspike Seamanship — Knots & Their Uses
The exam doesn't ask you to tie a knot — it asks which knot, and why. Watch each one tie itself step by step, then test the use.
Learn & practice →