Coxswain HQ — Boat Crew

Coxswain HQ — Three Maritime References, One Pocket-Sized Library

Built for USCG Auxiliarists, Coxswain candidates, recreational boaters, and anyone who studies for the helm. The three public-domain references mariners actually carry — bundled, searchable, and offline.

No ads. No subscription. No data sharing. No account required. The complete reference library — Nav Rules, Boat Crew Seamanship, and Signal Codes — plus bookmarks is FREE forever. One optional $0.99 Coxswain Pro purchase unlocks the interactive tools: the signal-flag decoder, knot guide, and PQS tracker. Pay once, yours forever.

WHAT'S INSIDE

USCG NAVIGATION RULES HANDBOOK (COLREGS + Inland)
The complete International Rules (72 COLREGS) and Inland Rules (33 CFR 83) — presented side-by-side rule by rule, exactly as the official USCG handbook does, with a quick toggle to show only International, only Inland, or both at once. Parts A–F plus Annexes I–V.

USCG BOAT CREW SEAMANSHIP MANUAL
The full Boat Crew Seamanship Manual — boat handling, towing, search & rescue, heavy weather, navigation, sound signals, anchoring. Every chapter, searchable.

NGA PUB 102 INTERNATIONAL CODE OF SIGNALS
All 40 signal flags (26 letters + 10 numerals + 3 substitutes + answering pennant) with their single-letter meanings, plus two-letter Distress/SAR/Maneuvering/Weather sections.

COXSWAIN PRO — THE INTERACTIVE TOOLS (one-time $0.99 unlock)

SIDE-BY-SIDE NAV RULES
International (72 COLREGS) and Inland (33 CFR 83) shown in parallel for every rule. Toggle: Both / International / Inland. The killer view for license candidates who need to know which jurisdiction says what.

KNOT LIBRARY
Bowline, Cleat Hitch, Clove Hitch, Square Knot, Sheet Bend, Round Turn & Two Half Hitches, Anchor Bend. Use case, verbatim Boat Crew procedure, and deep-link back to the manual section that mentions the knot.

SIGNAL FLAG DECODER
40-flag grid with phonetic name and SVG glyph for every flag. Plus a multi-flag hoist decoder — type the hoist, get the meaning. Works offline.

COXSWAIN PQS CHECKLIST
42 Personnel Qualification Standards tasks across 10 categories (Helmsmanship, Navigation, Engineering, Communications, Seamanship, First Aid, Damage Control, more). Check off as you complete each task; the app deep-links every task to the relevant Boat Crew Seamanship section so you can study right there.

OFFLINE BY DESIGN
• Fully offline — no signal needed underway
• Dark, low-light interface for the wheelhouse
• Fast search across all three references at once
• Bookmarks + recently viewed sections
• PQS progress saved on-device

WHO IT'S FOR
• USCG Auxiliarists studying for Boat Crew Member, Coxswain, or higher qualifications
• Power-boat and sailing captains preparing for USCG OUPV (6-pack) or Master licenses
• Recreational boaters who want the real Nav Rules at a glance
• Anyone responsible for safe operation of a small vessel

SAFETY DISCLAIMER
This app is a study and reference tool. NOT FOR PRIMARY NAVIGATION. Always consult current official USCG publications, Local Notices to Mariners, and current charts when actually underway. Maritime regulations are updated weekly — verify any operationally significant rule or procedure against the current source.

ATTRIBUTION
This app is an independent reference tool based on US Coast Guard and US National Geospatial-Intelligence Agency publications — works of the United States Government in the public domain. It is not affiliated with, endorsed by, or sponsored by the USCG, USCG Auxiliary, NGA, Department of Homeland Security, or Department of Defense.