Exam frequency
50%
Difficulty
4/5
Drill questions
82
Source excerpts
Bowditch Ch. 13 §1303
Bowditch Ch. 13 §1303 — Radar Navigation ARPA (Automatic Radar Plotting Aid) computes target tracks automatically and displays predicted CPA and TCPA. ARPA does not replace bridge watchkeeping; it supplements visual look-out.
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A self-propelled vessel of 12,000 gross tons, not a tank vessel and not carrying hazardous materials, was constructed in 1990 and operates on the navigable waters of the United States. Under 33 CFR §164.38, is this vessel required to carry an ARPA?
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