أدنى سرعة توجيه
The lowest speed at which the vessel maintains effective steering control, typically specified by the vessel’s maneuvering data.
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أدنى سرعة لانتشال المرساة
The lowest speed required to break the anchor free from the seabed and commence recovery.
View termأوقف المحركات الرئيسية
Engine telegraph order to cease all propulsion; used when vessel is to remain stationary or fully secured at berth.
View termإجراء نقل الدفة
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 termإدارة موارد الجسر
The effective use and coordination of all available bridge resources—personnel, equipment, and information—to ensure safe navigation and vessel operation.
View termإزاحة صدى الرادار
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 termإنذار بدء الدوران
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.
View termإنذار تسلسل نقاط الطريق
An alarm on navigation systems indicating failure to automatically advance to the next waypoint as programmed in the voyage plan.
View termإنذار مراقبة السلامة
An alarm signaling a failure or inconsistency detected in the position integrity monitoring system, requiring immediate action.
View termإنزال المرشد البحري بالميناء
The controlled process by which the harbour pilot safely leaves the vessel after completing the inbound or outbound passage.
View termاتجاه وانجراف التيار
The direction (set) and speed (drift) of water current affecting the ship’s course and position.
View termاتصال زورق السحب المرافق
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 termاجعل الحبال واحدة
Order to reduce the number of mooring lines on each bollard to one, preparing the vessel for departure.
View termاختلاف البوصلة المغناطيسية
The angular difference between true north and magnetic north, affecting compass readings on board ships.
View termاستعد المحركات الرئيسية
Order for main engines to be ready for immediate use, typically before departure, arrival, or manoeuvring.
View termافلت الجميع
Final order to release all mooring lines, allowing the vessel to depart from berth.
View termافلت يمين
Mooring command to release or cast off the starboard (right) mooring line or cable.
View termالتحكم في سحب المرساة للخلف
The controlled paying out of anchor chain in reverse (walkback) under power, used for precise anchor positioning or retrieval.
View termالتخطيط الراداري الآلي
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 termالخلوص الرأسي
The vertical distance from the waterline to the highest point of the vessel, used to determine safe passage under bridges or overhead obstacles.
View termالخلوص تحت الجسر
The vertical distance between the lowest part of the bridge span and the highest point of the vessel, ensuring safe passage.
View termالدفة وسط
Helm order to bring the rudder to the midships (zero angle) position, aligning with the vessel’s centerline.
View termالمسار الفعلي المتبع
The actual path a vessel follows over the ground, as recorded by position fixes, often used interchangeably with course made good.
View termالمسار الفعلي المنجز
The actual path of a vessel over the ground, as determined by position fixes, regardless of set or drift.
View termالمسافة الخالية خلف السفينة
The available unobstructed distance behind the vessel, critical for manoeuvring astern.
View termببطء شديد للأمام
Engine telegraph order instructing propulsion at the lowest possible speed ahead, used for delicate manoeuvring or congested areas.
View termببطء شديد للخلف
Engine telegraph order instructing propulsion at the lowest possible speed astern, used for delicate reversing or while manoeuvring in tight spaces.
View termتأثير الشفط البنكي
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 termتأثير منطقة مقاومة الرياح
The influence of the ship’s exposed surface area above the waterline, causing increased drift or leeway under wind pressure.
View termتأثير وسادة البنكي
Hydrodynamic phenomenon where water pressure between a vessel and a nearby bank creates a cushion, pushing the bow away from the bank.
View termتأكيد أمر الدفة
The required verbal response by the helmsman to confirm receipt and understanding of a helm order from the officer of the watch.
View termتأكيد رفع المرساة
The formal notification to the bridge or engine room that the anchor is clear of the seabed and ship is free to maneuver.
View termتبادل القبطان والمرشد
A formal communication process between the ship’s master and the pilot to share essential navigation information, plans, and local hazards before pilotage.
View termتبديل معدات القيادة
The act of switching from one steering gear system or power unit to another, often for redundancy or in case of equipment failure.
View termتحديد الموقع الأرضي
A position established by bearings or distances to known land features or aids to navigation, not using satellites.
View termتحديد موقع بالأقمار الصناعية
A position determined using satellite navigation signals, typically from systems like GPS or GLONASS, used for precise ship positioning.
View termتخطيط عرض القيادة
The arrangement of navigation and maneuvering information shown on the conning display for optimal bridge decision-making and situational awareness.
View termتسجيل صوتي للجسر
Continuous audio recording of all conversations and alarms on the bridge as mandated by SOLAS for investigation and safety compliance.
View termتصحيح الدفع الجانبي
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 termتقدير زاوية الانحراف
The calculated or visually assessed angle between a vessel’s heading and actual course over ground, caused by wind or current.
View termجدول التقدم والتحويل
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 termجرس التقدم البطيء للأمام
The engine telegraph order for slow speed ahead, typically used during precise manoeuvring, docking, or when entering confined waters.
View termجرس السرعة الأمامية القصوى
Engine telegraph order instructing propulsion at full engine speed ahead, typically used in open sea or to quickly gain speed.
View termجرس نصف سرعة أمامية
Engine telegraph order instructing propulsion at half engine speed ahead, used for moderate manoeuvring or departure from berth.
View termحبل قطر الطوارئ
A strong wire or rope rigged at bow or stern, readily accessible for emergency towing if the vessel becomes disabled.
View termحد السرعة في الميناء
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 termحساب نافذة المد والجزر
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 termحوض دوران الممر
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 termخط الاتجاه الإلكتروني
A digital navigational tool on ECDIS or radar for plotting and monitoring bearings to fixed or moving targets, improving situational awareness.
View termخط المسافة الإلكتروني
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 termخط دوران الدفة
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 termخط مؤشر متوازٍ
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 termخطأ البوصلة الجيروسكوبية
An inaccuracy or malfunction of the ship’s gyro compass, resulting in incorrect heading information displayed to bridge equipment.
View termخطأ انحراف المسار
The perpendicular distance between a vessel's actual position and the planned track line, used for navigation accuracy.
View termخطة تخصيص القاطرات
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 termخطة مرور الإرشاد
A detailed route plan, prepared jointly by the master and pilot, outlining intended track, waypoints, speed, and manoeuvres for the pilotage operation.
View termدفتر مناورات الجسر
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 termدليل تخطيط الرادار
A publication or onboard manual containing standardized instructions, techniques, and worksheets for manually plotting radar targets to assess collision risk and avoidance actions.
View termراقب الميلان
Helm or mooring order to observe and, if necessary, limit or arrest the vessel's swinging motion, especially when turning or anchoring.
View termسلم المرشد مثبت
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 termصعود المرشد البحري بالميناء
The procedure for safely boarding the harbour pilot at sea or at the entrance of the port using a pilot ladder or launch.
View termطريقة المؤشر المتوازي
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 termعرض تراكب الرادار
The presentation of radar information directly on the electronic chart display, enabling visual correlation of radar targets with charted features.
View termعرض خريطة متجهة
An electronic navigational chart presented in vector format, enabling interactive layers and detailed, scalable map features for navigation and route planning.
View termعلامة المياه الآمنة
IALA buoyage mark indicating there is navigable water all around the mark.
View termعمق التصميم للقناة
The minimum depth of a navigational channel as determined and maintained by authorities for safe passage of vessels, referenced to chart datum.
View termفحص سرعة المناورة
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 termفشل مرجع الاتجاه
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 termقابلها
Helm order given to check the vessel’s swing and prevent further turning, typically after a large rudder movement.
View termقطر دائرة الدوران
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 termقلل حتى خمسة
Helm order instructing the helmsman to reduce rudder angle to five degrees while maintaining course adjustment.
View termمحاذاة أضواء الإرشاد
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 termمحاذاة أضواء النطاق
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 termمحاذاة خط وسط الممر
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 termمراقبة الملاحة على الجسر
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 termمراقبة سلامة الموقع
Continuous verification of the reliability and accuracy of the ship’s position as provided by navigation systems.
View termمسار المياه العميقة
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 termمسار حركة المرور الموصى به
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 termمسافة أسفل العارضة
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 termمعدل الدوران
The speed at which a vessel changes its heading, typically measured in degrees per minute and displayed on the bridge instrument panel.
View termمعدل سحب المرساة
The speed at which the anchor cable is hauled in, usually measured in meters per minute, to control anchor recovery.
View termمنطقة احترازية
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 termمنطقة الحركة البحرية الساحلية
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 termمنطقة حظر التجاوز
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 termمنطقة صعود المرشد
A designated area, marked on charts, where the pilot boards or disembarks from a vessel, usually at port approaches or fairway entrances.
View termموضع زورق السحب الأمامي
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 termموضع زورق السحب الخلفي
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 termموقع القيادة الطارئة
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 termنظام الإبلاغ الإلزامي
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 termنظام الملاحة العالمي
A satellite-based navigation system such as GPS, GLONASS, Galileo, or BeiDou, providing worldwide position, navigation, and timing services to vessels.
View termنظام فصل الحركة البحرية
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 termنقطة تغيير المسار
A precisely charted position where a ship is required to change its course, usually as part of a passage plan.
View termنقطة تقرير 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 termنقطة دوران الدفة
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 termهامش تأثير السكوات
The additional draught margin applied to account for the increased draught of a vessel due to the squat effect in shallow water.
View termهامش غاطس ديناميكي
An additional draught margin included to account for dynamic effects such as squat, trim, and vessel movement in shallow waters.
View termوصلة الطيار الحية
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 termيسار كامل
Helm order instructing the rudder to be put fully to port (left) for maximum turning effect.
View termيمين كامل
Helm order instructing the rudder to be put fully to starboard (right) for maximum turning effect.
View term