Báo Động Đổi Lái
An electronic or mechanical alarm that notifies the bridge team when it is time to initiate the wheel-over manoeuvre, usually at a pre-set waypoint or heading.
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Bảng tiến và chuyển hướng
A manoeuvring aid providing predicted advance (distance along original track) and transfer (lateral distance) for specific speeds and rudder angles to plan safe turns.
View termBể Quay Đầu Luồng Hàng Hải
A designated widened section of a navigational fairway, specifically constructed to allow vessels to safely turn or change direction under pilotage or tug assistance.
View termBố trí màn hình điều khiển
The arrangement of navigation and maneuvering information shown on the conning display for optimal bridge decision-making and situational awareness.
View termCa trực hành trình trên buồng lái
A continuous period during which designated officers and crew maintain vigilance and operational control on the bridge to ensure the vessel’s safe navigation.
View termChuyển đổi thiết bị lái
The act of switching from one steering gear system or power unit to another, often for redundancy or in case of equipment failure.
View termChuông tiến chậm
The engine telegraph order for slow speed ahead, typically used during precise manoeuvring, docking, or when entering confined waters.
View termChuông tiến nửa tốc độ
Engine telegraph order instructing propulsion at half engine speed ahead, used for moderate manoeuvring or departure from berth.
View termChuông tiến toàn tốc
Engine telegraph order instructing propulsion at full engine speed ahead, typically used in open sea or to quickly gain speed.
View termChuẩn bị máy chính
Order for main engines to be ready for immediate use, typically before departure, arrival, or manoeuvring.
View termChặn lại hướng
Helm order given to check the vessel’s swing and prevent further turning, typically after a large rudder movement.
View termChế Độ Báo Cáo Bắt Buộc
A regulatory system requiring vessels to provide voyage information at specified locations or intervals, typically enforced by local or international authorities for traffic monitoring and safety.
View termChỉ để lại một dây
Order to reduce the number of mooring lines on each bollard to one, preparing the vessel for departure.
View termCăn Chỉnh Trục Giữa Luồng
The practice of steering a vessel so that its longitudinal axis remains aligned with the designated navigational centreline of a fairway, as marked by buoys, lights, or electronic aids.
View termCăn Chỉnh Đèn Dẫn Hướng
The process of navigating a vessel by visually aligning two or more fixed leading lights (range lights), ensuring the vessel remains on the recommended channel course.
View termCăn Chỉnh Đèn Dẫn Đường
The navigation technique of steering a vessel so that two range lights, one behind the other, appear vertically aligned, indicating the vessel is on the safe channel axis.
View termCảnh báo giám sát toàn vẹn
An alarm signaling a failure or inconsistency detected in the position integrity monitoring system, requiring immediate action.
View termCảnh báo tuần tự waypoint
An alarm on navigation systems indicating failure to automatically advance to the next waypoint as programmed in the voyage plan.
View termCầu thang hoa tiêu đã lắp
A pilot ladder correctly secured and deployed over the ship’s side, ready for safe boarding or disembarkation of the pilot as per SOLAS standards.
View termCổng dữ liệu pilot trực tiếp
An active data connection port on the bridge that provides real-time navigational data from the ship's ECDIS or AIS system for the pilot’s portable unit.
View termDây kéo khẩn cấp
A strong wire or rope rigged at bow or stern, readily accessible for emergency towing if the vessel becomes disabled.
View termDấu hiệu vùng nước an toàn
IALA buoyage mark indicating there is navigable water all around the mark.
View termDừng máy chính
Engine telegraph order to cease all propulsion; used when vessel is to remain stationary or fully secured at berth.
View termDự phòng hiệu ứng squat
The additional draught margin applied to account for the increased draught of a vessel due to the squat effect in shallow water.
View termDự phòng mớn nước động
An additional draught margin included to account for dynamic effects such as squat, trim, and vessel movement in shallow waters.
View termGhi âm cầu tàu
Continuous audio recording of all conversations and alarms on the bridge as mandated by SOLAS for investigation and safety compliance.
View termGiám sát toàn vẹn vị trí
Continuous verification of the reliability and accuracy of the ship’s position as provided by navigation systems.
View termGiảm về năm độ
Helm order instructing the helmsman to reduce rudder angle to five degrees while maintaining course adjustment.
View termGiới Hạn Tốc Độ Cảng
The officially published maximum speed permitted for vessels within a designated harbour or port area, set by local authorities to ensure safety of navigation and infrastructure.
View termHiển thị bản đồ vector
An electronic navigational chart presented in vector format, enabling interactive layers and detailed, scalable map features for navigation and route planning.
View termHiển thị chồng radar
The presentation of radar information directly on the electronic chart display, enabling visual correlation of radar targets with charted features.
View termHiệu chỉnh lực đẩy ngang
The adjustment applied to helm or engine orders to compensate for the sideways force exerted by a propeller, especially during astern or ahead movements.
View termHiệu ứng diện tích cản gió
The influence of the ship’s exposed surface area above the waterline, causing increased drift or leeway under wind pressure.
View termHiệu ứng hút bờ
Hydrodynamic phenomenon where a vessel navigating close to a bank experiences a suction force pulling the vessel toward the bank due to water velocity difference.
View termHiệu ứng đệm bờ
Hydrodynamic phenomenon where water pressure between a vessel and a nearby bank creates a cushion, pushing the bow away from the bank.
View termHoa tiêu cảng lên tàu
The procedure for safely boarding the harbour pilot at sea or at the entrance of the port using a pilot ladder or launch.
View termHướng và tốc độ dòng chảy
The direction (set) and speed (drift) of water current affecting the ship’s course and position.
View termHải trình thực tế
The actual path of a vessel over the ground, as determined by position fixes, regardless of set or drift.
View termHệ Thống Phân Luồng Giao Thông
An internationally recognized routing measure that separates opposing streams of vessel traffic by defined lanes and rules to reduce collision risk in busy or restricted waters.
View termHệ thống định vị toàn cầu
A satellite-based navigation system such as GPS, GLONASS, Galileo, or BeiDou, providing worldwide position, navigation, and timing services to vessels.
View termKhoảng cách trống phía sau
The available unobstructed distance behind the vessel, critical for manoeuvring astern.
View termKhoảng không dưới cầu
The vertical distance between the lowest part of the bridge span and the highest point of the vessel, ensuring safe passage.
View termKhoảng không phía trên
The vertical distance from the waterline to the highest point of the vessel, used to determine safe passage under bridges or overhead obstacles.
View termKhoảng trống dưới sống
Vertical distance between the lowest point of a vessel’s keel and the seabed referenced to chart datum; the key safety margin preventing grounding.
View termKhu Vực Cảnh Báo
A defined area where vessels must navigate with particular caution, often due to traffic convergence, hazards, or complex navigation conditions. Special rules or recommendations may apply.
View termKhu Vực Cấm Vượt
A defined sector of a channel or waterway where overtaking by vessels is prohibited for safety reasons, often due to restricted width or high traffic density.
View termKhu vực đón hoa tiêu
A designated area, marked on charts, where the pilot boards or disembarks from a vessel, usually at port approaches or fairway entrances.
View termKiểm tra sự quay
Helm or mooring order to observe and, if necessary, limit or arrest the vessel's swinging motion, especially when turning or anchoring.
View termKiểm tra tốc độ thao diễn
The process of verifying and confirming the vessel’s speed through the water is suitable for safe manoeuvring during berthing, departure, or restricted navigation.
View termKế hoạch luồng hoa tiêu
A detailed route plan, prepared jointly by the master and pilot, outlining intended track, waypoints, speed, and manoeuvres for the pilotage operation.
View termKế hoạch phân bổ tàu lai
A detailed arrangement indicating the number, type, and position of tugs assigned to assist a vessel during berthing, unberthing, or transit in restricted waters.
View termKết Nối Tàu Kéo Hộ Tống
The established secured line or method by which an escort tug is physically connected to a vessel, typically for controlling or assisting the ship during harbour or restricted water navigation.
View termLàn Giao Thông Đề Xuất
A charted route within a traffic separation scheme or recommended track designed for the safe passage of vessels, but not compulsory. Usage reduces collision risk.
View termLái giữa
Helm order to bring the rudder to the midships (zero angle) position, aligning with the vessel’s centerline.
View termLái hết phải
Helm order instructing the rudder to be put fully to starboard (right) for maximum turning effect.
View termLái hết trái
Helm order instructing the rudder to be put fully to port (left) for maximum turning effect.
View termLùi rất chậm
Engine telegraph order instructing propulsion at the lowest possible speed astern, used for delicate reversing or while manoeuvring in tight spaces.
View termLỗi la bàn con quay
An inaccuracy or malfunction of the ship’s gyro compass, resulting in incorrect heading information displayed to bridge equipment.
View termLỗi tham chiếu hướng
A malfunction or loss of accuracy in the ship’s heading reference system, such as gyro or magnetic compass, affecting navigation and safe maneuvering.
View termLộ trình thực tế
The actual path a vessel follows over the ground, as recorded by position fixes, often used interchangeably with course made good.
View termPhương pháp chỉ số song song
A radar navigation technique in which fixed radar echoes are kept on predetermined parallel lines to verify the vessel remains on its planned track without constant position fixing.
View termQuản lý nguồn lực cầu tàu
The effective use and coordination of all available bridge resources—personnel, equipment, and information—to ensure safe navigation and vessel operation.
View termSai số lệch luồng
The perpendicular distance between a vessel's actual position and the planned track line, used for navigation accuracy.
View termSổ nhật ký điều động buồng lái
A logbook kept on the bridge for recording all manoeuvring orders, engine telegraph movements, helm commands, and critical events during a vessel's navigation and docking.
View termSổ Tay Đánh Dấu Radar
A publication or onboard manual containing standardized instructions, techniques, and worksheets for manually plotting radar targets to assess collision risk and avoidance actions.
View termThả dây mạn phải
Mooring command to release or cast off the starboard (right) mooring line or cable.
View termThả tất cả dây
Final order to release all mooring lines, allowing the vessel to depart from berth.
View termThủ tục chuyển giao bánh lái
The standardised method for transferring control of the ship’s steering from one helm station or operator to another, ensuring continuous and safe steering.
View termTiến rất chậm
Engine telegraph order instructing propulsion at the lowest possible speed ahead, used for delicate manoeuvring or congested areas.
View termTrao đổi thuyền trưởng-hoa tiêu
A formal communication process between the ship’s master and the pilot to share essential navigation information, plans, and local hazards before pilotage.
View termTuyến Nước Sâu
A route within defined limits in deep water that is charted and designated for the passage of vessels requiring deep draught, providing safe clearance from underwater hazards.
View termTính toán cửa sổ thủy triều
The process of determining the optimal period based on tidal height during which a vessel can safely transit shallow waters or cross a bar.
View termTốc độ kéo neo
The speed at which the anchor cable is hauled in, usually measured in meters per minute, to control anchor recovery.
View termTốc Độ Quay
The speed at which a vessel changes its heading, typically measured in degrees per minute and displayed on the bridge instrument panel.
View termTốc độ tối thiểu để nhổ neo
The lowest speed required to break the anchor free from the seabed and commence recovery.
View termTốc độ tối thiểu để điều khiển
The lowest speed at which the vessel maintains effective steering control, typically specified by the vessel’s maneuvering data.
View termVùng Giao Thông Ven Bờ
A coastal area, adjacent to the landward side of a traffic separation scheme, intended for use by vessels not using the main traffic lanes, such as local or smaller craft.
View termVạch chỉ số song song
A radar-derived reference line drawn parallel to the vessel's intended track, used to monitor cross-track error by keeping a chosen land echo or seamark at a constant offset.
View termVị trí lái khẩn cấp
A dedicated station—usually aft in the steering gear room—used to control the ship’s steering in the event of bridge steering failure.
View termVị Trí Tàu Kéo Mũi
The assigned and maintained location of a tug at the bow of a vessel to provide pushing, pulling, or steering assistance during berthing, unberthing, or manoeuvring in confined waters.
View termVị Trí Tàu Kéo Đuôi
The designated location of a tug at the stern of a vessel, used to provide pulling or braking force during manoeuvring, berthing, or unberthing operations.
View termXuống tàu của hoa tiêu cảng
The controlled process by which the harbour pilot safely leaves the vessel after completing the inbound or outbound passage.
View termXác nhận lệnh bánh lái
The required verbal response by the helmsman to confirm receipt and understanding of a helm order from the officer of the watch.
View termXác nhận neo đã nhổ lên
The formal notification to the bridge or engine room that the anchor is clear of the seabed and ship is free to maneuver.
View termĐiều khiển kéo neo ngược
The controlled paying out of anchor chain in reverse (walkback) under power, used for precise anchor positioning or retrieval.
View termĐiểm Báo Cáo VTS
A specifically designated geographical position where a vessel is required to contact and report to the Vessel Traffic Service (VTS) with position, status, and intentions.
View termĐiểm bẻ lái
The charted position at which the rudder is first applied to initiate a planned course alteration so that the vessel follows the intended turning track.
View termĐiểm đổi hướng
A precisely charted position where a ship is required to change its course, usually as part of a passage plan.
View termĐánh Dấu Radar Tự Động
The process by which radar targets are tracked and collision risk assessed automatically by ARPA systems, displaying real-time information on target movements and CPA/TCPA.
View termĐường bẻ lái
A track line shown on chart or radar which, when crossed, indicates the precise moment to start the wheel-over so that the intended new course is met accurately.
View termĐường khoảng cách điện tử
A digital tool on radar/ECDIS allowing navigators to set and measure a precise distance from own ship to a selected point or target.
View termĐường kính vòng quay
The distance perpendicular to the original track between tangents of the vessel’s path when executing a steady-turn at a given rudder angle and speed, usually expressed in ship lengths or cables.
View termĐường phương vị điện tử
A digital navigational tool on ECDIS or radar for plotting and monitoring bearings to fixed or moving targets, improving situational awareness.
View termĐịnh vị vệ tinh
A position determined using satellite navigation signals, typically from systems like GPS or GLONASS, used for precise ship positioning.
View termĐịnh vị vị trí bằng phương pháp mặt đất
A position established by bearings or distances to known land features or aids to navigation, not using satellites.
View termĐộ lệch la bàn từ
The angular difference between true north and magnetic north, affecting compass readings on board ships.
View termĐộ Lệch Vang Radar
The adjustment of the radar image to compensate for systematic error or offset, ensuring true target positions correspond to their charted locations and improving navigation accuracy.
View termĐộ sâu thiết kế luồng
The minimum depth of a navigational channel as determined and maintained by authorities for safe passage of vessels, referenced to chart datum.
View termƯớc tính góc trôi
The calculated or visually assessed angle between a vessel’s heading and actual course over ground, caused by wind or current.
View term