U.S. Inland Navigational Rules vs True

Essential Information for All Boat Users. Now includes Search function, Quick Get Location (your current latitude and longitude) with save and export, and Text Size/Reading mode. Complete Inland Navigation Rules for all U.S. inland waters and the Great Lakes. With 100+ specially produced explanatory illustrations and captions. For all boaters. Plus FREE bonus emergency procedures section. ************ FEATURES and BENEFITS ******************* - For reference, learning & revision - Over 100 custom made graphics for quick reference and easy learning - Researched and produced by nautical and marine experts for accuracy - Positively evaluated by professionals for reliability The complete Inland Navigation Rules for the United States including Parts A, B, C, D and E, plus Annexes, Interpretative Rules and other associated Navigation Regulations are all included in this app. See details below. A bonus illustrated section includes emergency procedures for boaters to follow when in difficulty. Anyone who is responsible for a vessel, from the smallest dinghy to an ocean going freighter, must be able to recognize other vessels around them by day or night, whatever the visibility. They need to be able to quickly interpret what other vessels are doing, who has right of way and what action they should take to prevent a possible collision. This is not always easy, especially along crowded rivers, narrow channels, in harbors or in poor visibility. NAVIGATION RULES INLAND includes the fully illustrated Rules of the Road - great for quick reference and easy learning. • Steering & Sailing Rules [ILLUSTRATED] • Lights & Shapes [ILLUSTRATED] • Sound & Light Signals [ILLUSTRATED] NAVIGATION RULES INLAND also includes the complete detailed rules as follows: * Exemptions * Annex I - Positioning and Technical Details of Lights and Shapes * Annex II - Additional Signals for Fishing Vessels Fishing in Close Proximity * Annex III - Technical Details of Sound Appliances * Annex IV - Distress Signals [ILLUSTRATED] * Annex V - Pilot Signals * Interpretive Rules * COLREGS DEMARCATION LINES - detailed information of the lines of jurisdiction that separate the Inland and International Rules, as indicated on National Ocean Service navigation charts * Alternative Compliance * Waters upon which Inland Rules apply * Vessel Bridge to Bridge Radiotelephone Regulations * Vessel Traffic Services (VTS) Call Signs, Designated Frequencies, and Monitoring Areas * Penalty Provisions ************* FREE Bonus Content from "Safe Skipper" ***************************** Safety Afloat Tips & Advice on Emergency Procedures for all Sailors and Leisure Boaters. * Safety information & practical tips * Specially created custom graphics: illustrations, photos & diagrams * Advice on emergency procedures * Stay safe and prevent accidents happening * Written & illustrated by a qualified & experienced yachtsman Includes information on: * Abandoning ship * Dismasting * Distress signals * Engine failure * Fire fighting * Getting a tow * Helicopter rescue * Holed hull * MAYDAY procedures * Medical emergency * SAR signals ***************************************** Customer feedback for Safe Skipper: "Highly recommend this App, get it on your Phone or Tablet today" "This app is full of really useful info for anyone going to sea (or inland waterways...). It's presented really well, and has some good graphics. Can't believe just how much they've packed in. Recommended." "A well written and detailed app for yachts & inland craft also quite useful for ocean going vessels - well done." ***************************************** Special thanks to Captain Richard J. Rodriguez, U.S. Coast Guard licensed Master and Director of Operations at Zenith Maritime for his helpful advice and recommendations.

The wind you feel on a moving boat isn't the real wind. True-Wind Calculator turns the apparent wind you measure into the true wind you need — in two taps, no wind instruments required. In use since 2013, completely rebuilt in 2026. HOW IT WORKS Enter boat speed, apparent wind speed, apparent wind angle and heading. The app does exact vector math — no lookup tables, no approximations — and gives you true wind speed and true wind direction instantly. Boat speed and heading can be filled automatically from GPS and compass with one tap. FREE • True wind speed, direction and angle — unlimited calculations • One-tap GPS fill for boat speed and heading • The formula explained, so you can trust the numbers • Works completely offline — no account, no ads, no tracking PRO (one-time purchase, no subscription) • Performance — live VMG, target boat speed, % of target VMG and point of sail, driven by your boat's polar • Tactics — tack preview, windward-mark laylines, and whether you can lay the mark • Boat polars — pick a preset or build your own in the editor • Compass rose view — heading, apparent and true wind on one dial • Calculation history — every result logged with its inputs • All speed units — knots, m/s, km/h, mph Bought the app back when it was paid? Pro is already yours — it unlocks automatically. PRIVACY Everything stays on your device. Location is read only to fill the input fields and never leaves your phone. No analytics, no third-party SDKs.