USCG Exam PracticeSingle-screw maneuvering and prop walk
Under 46 CFR §184.620, a propulsion engine control system, including pilothouse control, must be designed so that a loss of power to the control system results in which of the following?
- A. An automatic increase in shaft speed to maintain steerageway
- ✓ No increase in shaft speed or propeller pitchCorrect
- C. Automatic engagement of the emergency steering system
- D. Immediate shutdown of all propulsion engines
Why B is correct
46 CFR §184.620(c) states that a propulsion engine control system must be designed so that a loss of power to the control system does not result in an increase in shaft speed or propeller pitch. The regulation does not require automatic shutdown or automatic engagement of emergency steering upon control power loss.
Cited:46 CFR §184.620