Seaman personal blog

Oleh Mas Edy

On Shore, 17 February 2010

Tulisan ini timbul setelah saya mendapat kesulitan untuk mencari jarak port to port dimana saya mendapat job mengantar atau delivery sebuah kapal.

Persoalan yg saya ingin mencari solusinya adalah saat saya mendapatkan tawaran tsbt tentu saya masih di darat dan bagaimana cara nya agar saya bisa mengetahui kira2 estimate time under way, ETA atau estimate kapan kapal berangkat dari pelabuhan dan kapan akan tiba tujuan??.. Wah belum join kapal uda pusing2 ngitung jarak di darat. Tentu ini bukan tanpa alasan, mengapa saya mencari solusi untuk hal ini ??. Alasan nya adalah karena saya sudah lebih dulu menunggu join kapal di sebuah perusahaan, Tapi karena masih stand by maka tak ada salahnya saya mengantar kpl lain untuk waktu beberapa hari, lumayan bisa buat tambahan uang saku.Jadi abis ngantar kapal kembali untuk memenuhi panggilan company lama hehe2.. Ok.

Pada tulisan saya terdahulu saya memberikan tips koreksi peta, tide predictions online Sakarang mencari jarak dgn cepat gaya mobile. Jadi cara ini bisa untuk panduang membuat garis haluan agar jarak tidak terlampau jauh dari distance table. Terutama untuk pelayaran ocean going, great circle dan juga membantu bagi anda yang tidak mau repot membuka Admiralty Distance Table.

Semua kepraktisan tentu butuh pengorbanan juga. yah butuh online. Barangkali ada software distance table yang bisa anda install di pc anda dan bekerja offline, tetapi tips ku ini bekerja secara online anda hanya perlu koneksi ke internet dimana pun anda berada lalu kunjingilah link ini.( haya untuk yang membutuhkan nya bisa comment dan aku berikan link nya). setelah terbuka anda di minta untuk memasukan beberapa data seperti :

- Leaving from (masukan pelabuhan keberangkatan)

- Going to (masukan pelabuhan tujuan)

- Time begin (masukan jam keberangkatan. Disini tidak ada pilihan untuk date karena di anggap tanggal nya adalah tanggal saat anda melakukan perhitungan)

- Speed (masukan speed rata-rata kapal anda)

continue reading…

Oleh mas Edy

On shore 15 February 2010

L.N.G Liquefied natural gas adalah gas alam yang telah diproses untuk menghilangkan ketidakmurnian dan hidrokarbon berat dan kemudian dikondensasi menjadi cairan pada tekan atmosfer dengan mendinginkannya sekitar -160° Celcius.

L.N.G Liquefied natural gas

N.G.L Natural gas liquids

Kebanyakan jenis tangki L.N.G adalah membran atau "moss".

LNG menawarkan kepadatan energi yang sebanding dengan bahan bakar petrol dan diesel dan menghasilkan polusi yang lebih sedikit.

LNG berasal dari gas alam yang merupakan campuran dari beberapa gas yang bereda sehingga tidak memililiki nilai panas yang spesifik.Nilai panasnya bergantung pada sumber gas yang digunakan dan proses yang digunakan untuk mencairkan bentuk gasnya. Nilai panas tertinggi LNG berkisar sekitar 24MJ/L pada suhu -164 derajat Celsius dan nilai terendahnya 21ML/L.

LPG adalah kependekan dari Liquefied Petroleum Gas, merupakan gas hasil produksi dari kilang minyak atau kilang gas, yang komponen utamanya adalah gas propane (C3H8) dan butane (C4H10) yang dicairkan.

Di rangkum oleh Mas Edy

On shore, 6 February 2010

Mates were in high demand during World War II.

The International Regulations for Preventing Collisions at Sea are a cornerstone of safe watchkeeping. Safety requires that one live these rules and follow the principles of safe watchkeeping. Maximizing bridge teamwork, including Bridge Resource Management is an emerging focus in watchkeeping.

The main purpose for Radar and Automatic Radar Plotting Aids (ARPA) on a ship’s bridge are to move safely among other vessels. These tools help to accurately judge information about prominent objects in the vicinity, such as:

• range, bearing, course and speed

• time and distance of closest point of approach

• course and speed changes

These factors help the officer apply the COLREGS to safely maneuver in the vicinity of obstructions and other ships.

Unfortunately, radar has a number of limitations, and ARPA inherits those limitations and adds a number of its own. Factors such as rain, high seas, and dense clouds can prevent radar from detecting other vessels. Conditions such as dense traffic and course and speed changes can confuse ARPA units. Finally, human errors such as inaccurate speed inputs and confusion between true and relative vectors add to the limitations of the radar/ARPA suite.

The radar operator must be able to optimize system settings and detect divergences between an ARPA system and reality. Information obtained from radar and ARPA has to be treated with scrutiny: over reliance on these systems has sunk ships. The officer must understand system performance. Examples include limitations and accuracy, tracking capabilities and limitations, and processing delays, and the use of operational warnings and system tests.

Di rangkum oleh Mas Edy

On shore, 5 February 2010

While a ship is underway, the officers navigate it, typically in three shifts or watches.

Celestial, terrestrial, electronic, and coastal navigation techniques are used to fix a ship’s position on a navigational chart. Accounting for effects of winds, tides, currents and estimated speed, the officer directs the helmsman to keep to track. The officer uses supplemental information from nautical publications, such as Sailing Directions, tide tables, Notices to Mariners, and radio navigational warnings to keep the ship clear of danger in transit.

Safety demands the mate be able to quickly solve steering control problems and to calibrate the system for optimum performance. Since magnetic and gyrocompasses show the course to steer, the officer must be able to determine and correct for compass errors.

Weather’s profound effect on ships requires the officer be able to interpret and apply meteorological information from all available sources. This requires expertise in weather systems, reporting procedures, and recording systems.

Di rangkum oleh Mas Edy

On shore, 05 February 2010

At sea, the mate on watch has three fundamental duties: to navigate the ship, to safely avoid traffic, and to respond to emergencies. Mates generally stand watch with able seamen who act as helmsman and lookout. The helmsman executes turns and the lookout reports dangers such as approaching ships. These roles are often combined to a single helmsman/lookout and, under some circumstances, can be eliminated completely. The ability to smartly handle a ship is key to safe watchstanding. A ship’s draught, trim, speed and under-keel clearance all affect its turning radius and stopping distance. Other factors include the effects of wind and current, squat, shallow water, and similar effects. Shiphandling is key when the need arises to rescue a man overboard, to anchor, or to moor the ship.

The officer must also be able to transmit and receive signals by Morse light and to use the International Code of Signals

Di rangkum oleh: Mas Edy

On shore, 4 February 2010

A second mate is almost always a watchstander. In port and at sea, the second mate is responsible to the captain for keeping the ship, its crew, and its cargo safe for eight hours each day. Traditionally, the second mate stands a "12-4" watch: from midnight until 4am and noon until 4pm. On watch, he must enforce all applicable regulations, such as safety of life at sea and pollution regulations. In port, the watch focuses on duties such as cargo operations, fire and security watches, monitoring communications, and the anchor or mooring lines.

IMO regulations require the officer be fluent in English. This is required for a number of reasons, such as to use charts and nautical publications, understand weather and safety messages, communicate with other ships and coast stations, and to be able to work with a multi-lingual crew

Rangkum oleh Mas Edy

On Shore, 03 February 2010

A second mate (2/M) or second officer is a licensed member of the deck department of a merchant ship. The second mate is the third in command and a watchkeeping officer, customarily the ship’s navigator. Other duties vary, but the second mate is often the medical officer and in charge of maintaining distress signaling equipment. On oil tankers, the second mate usually assists the chief mate with the tank-cleaning operations.

The navigator role focuses on creating the ship’s passage plans. A passage plan is a comprehensive, step by step description of how the voyage is to proceed from berth to berth. The plan includes undocking, departure, the en route portion of a voyage, approach, and mooring at the destination.

The GMDSS officer role consists of performing tests and maintenance, and ensuring the proper log-keeping on the ship’s Global Maritime Distress Safety System equipment. Safety equipment includes Emergency Position-Indicating Radio Beacons, a NAVTEX unit, INMARSAT consoles, various radios, Search and Rescue Transponders, and Digital Selective Calling systems.

Di rangkum oleh Mas Edy

On shore, 3 February 2010

Emergencies

Emergencies can happen at any time, and the officer must be equipped to safeguard passengers and crew. After a collision or a grounding, the officer must be able to take initial action, perform damage assessment and control, and understand the procedures for rescuing persons from the sea, assisting ships in distress, and responding to any emergency which may arise in port.

The officer must understand distress signals and know the IMO Merchant Ship Search and Rescue Manual.

Cargo handling

The ship’s officer must be able to oversee the loading, stowage, securing and unloading of cargoes. Requirements include understanding the care of cargo during the voyage.

Of particular importance is knowledge of the effect of cargo including heavy lifts on the seaworthiness and stability of the ship. The officer must also understand safe handling, stowage and securing of cargoes, including cargoes that are dangerous, hazardous or harmful.

Controlling ship operations

The officer has special responsibilities to keep the ship, the people on board and the environment safe. This includes keeping the ship seaworthy during fire and loss of stability, and providing aid and maintaining safety during man overboard, abandoning ship, and medical emergencies.

Understanding ship’s stability, trim, stress, and the basics of ship’s construction is a key to keeping a ship seaworthy. Competencies include knowing what to do in cases of flooding and loss of buoyancy. Fire is also a constant concern. Knowing the classes and chemistry of fire, fire-fighting appliances, and systems prepares the officer to act fast in case of fire.

An officer must be expert in the use of survival craft and rescue boats, their launching appliances and arrangements, and their equipment including radio life-saving appliances, satellite EPIRBs, SARTs, immersion suits and thermal protective aids. It’s important to be expert in the techniques for survival at sea techniques in case it’s necessary to abandon ship.

Officers are trained to perform medical tasks and to follow instructions given by radio or obtained from guides. This training includes what to do in case of common shipboard accidents and illnesses.

Di rangkum oleh Mas Edy

On shore, 02 February 2010

Anchor handling tug supply (AHTS) vessels are vessels which supply oil rigs, tow them to location, anchor them up and, in a few cases, serve as an Emergency Rescue and Recovery Vessel (ERRV).

AHTS differ from Platform Supply Vessels (PSV’s)in being fitted with winches for towing and anchor handling, having an open stern to allow the decking of anchors, and having more power to increase the bollard pull. The machinery is specifically designed for anchor handling operations. They also have arrangements for quick anchor release, which is operable from the bridge or other normally manned location in direct communication with the bridge. The reference load used in the design and testing of the towing winch is twice the static bollard pull.