CBDR
Radar & Rules of the Road
About
This app trains junior deck officers and watchstanders in essential radar watch skills, including contact evaluation, COLREGS classification, and generating contact reports. It features a live radar scope, generated scenarios for various navigation situations, and drills for recognition and maneuvering.
What's New in CBDR
2.2
September 23, 2026
• Weather explainers: seventeen lessons from Bowditch on why the air moves, the major wind belts with the three circulation cells and the jet streams, air masses, isobars and pressure systems, fronts and the wave cyclone, ocean cyclone evolution, local winds, land and sea breezes, waterspouts and deck ice, fog, tropical cyclones and their hazards, a tropical cyclone encounter, Buys Ballot's law and the dangerous semicircle, maneuvering to avoid the storm center, and the general rules for a steamer. • Waves explainers: seven lessons on how wind makes waves, wave characteristics, the journey from the generating area to the coast, shallow water and breakers, measuring waves aboard ship, waves and ships, and tsunamis, storm tides, seiches and bores. • A ninth subject, Weather, on the home screen, with a rotating globe for the global winds and a three-dimensional sea for the waves.
MoreFAQ
What is CBDR?
CBDR is an educational application designed to train junior deck officers and watchstanders in core radar watch skills. It covers contact evaluation, COLREGS classification, and contact reporting through interactive simulations and drills.
What learning methodology does CBDR use?
CBDR employs a hands-on approach with a live radar scope, generated scenarios simulating various navigation situations, and specific drills for maneuvering and recognition. It also includes a comprehensive test bank for the USCG Rules of the Road.
How does CBDR track progress?
The app scores spoken or typed contact reports against correct formats, and provides results for offline group testing. This allows users and instructors to assess understanding and identify areas for improvement.
Does CBDR offer certifications?
While CBDR provides a 958-question USCG Rules of the Road test bank and offline group testing with exportable records, it does not explicitly mention offering formal certifications within the app.
Is CBDR suitable for offline use?
Yes, CBDR works entirely offline, making it ideal for training in environments with limited or no internet access. It does not require an account or collect any user data.
What devices does CBDR support?
CBDR is available on iPhone and iPad, indicated by its support for these platforms. It was last updated on August 1, 2026, with version 1.2.
Does CBDR have ads?
No, CBDR is ad-free. The application explicitly states that it contains no ads and collects no user data, ensuring an uninterrupted learning experience.
What is the user sentiment for CBDR?
Based on the available data, CBDR has a perfect 5.0-star rating from 2 reviews, suggesting a highly positive user sentiment among its current users.
