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Identifying and Responding to an approaching TRS.
Warning signs of an approaching TRS Swell The very violent winds of the eye-wall send swell out in a radial direction. Swell can be experienced as much as a thousand…
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Off Heading alarm, Off Course alarm & Gyro Wandering: Definitions.
Gyro Wandering The undesired movement of one of the spin axis of the gyro from its original position. Gyro wandering can be apparent or real. Apparent gyro wandering is the…
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Tropical Revolving Storm (TRS): The 9 important terms.
Terms related to a Tropical Revolving Storm (TRS) In this article we take a look at the important terms related to a Tropical Revolving Storm (TRS). The following are the…
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TRS and the weather associated with it.
Weather associated with TRS Atmospheric pressure In the outer storm area of a TRS, the fall of pressure ahead of the trough, and the rise of pressure behind it, is…
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Explain about TRS, its movement and Structure.
TROPICAL REVOLVING STORMS A tropical revolving storm aka TRS, is a small area of very low pressure, around which winds of gale force (34 knots or force 8) or more…
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Define Turning Circle, Advance, Transfer, Tactical Diameter, Stopping Distance, Inertia Stop, Crash Stop, Head Reach, Track Reach and Drift Angle.
Turning Circle: The path described by a ship's pivot point as it executes a 360° turn.Advance: When a ship is turning the distance travelled by centre of gravity along the…
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What is the difference between Abort Point & Point of No Return?
Abort Point The Abort Point is a position on the marked course where the ship may abandon her passage and be able to return (or hold position safely). You May…
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What is SCAMIN? When to keep SCAMIN ON or OFF?
What is SCAMIN? Scale Minimum (SCAMIN) is an attribute allocated to features within an ENC. It defines the minimum (smallest) scale at which the feature will be displayed in an…
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What are the 2 chart symbol display modes in ECDIS? Which one is preferred & Why?
The ECDIS has 2 categories of chart symbols; Traditional and Simplified symbols. ECDIS can display chart symbols in either traditional or simplified form. Traditional symbols are very much like those…
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What factors affect the number of shackles to be used while anchoring?
Number of Shackles to Use The number of shackles to veer depends upon a number of factors: (a) Holding characteristics of the anchor. (b) Length of stay. (c) Strength of…