Rules of the Road · Sail
Right-of-way rules on the water shouldn't be a guessing game. Calling Starboard drills you with real-world scenarios until the calls become second nature. No manuals, no rereading the same diagram for the tenth time - just quick, practical practice you can do anywhere.
iOS & iPadOS · one-time purchase · no subscription
Learn it by doing
This is exactly what you'll see in the app. Tap in and make the call.
Tap the screen to see the answer and the rule behind it.
There are only three rules that decide who gives way under sail - but they're not the kind of thing you can look up in the half-second before two boats close the gap.
I couldn't reliably remember them, so I built a way to drill them until I could. No account, no clutter - open it, get a scenario, answer it, see why.
Two boats, different tacks, courses cutting through each other. Port always gives way to starboard.
Same tack, closing in from behind or alongside. Whoever's further upwind gives way.
Coming up from clear astern. The overtaking boat gives way - tack doesn't matter.
Know the rules. Nail the calls.
One time. No subscription. Yours for good.
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