| Excel File |
Description |
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Example 1 |
Immingham to New York |
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Example 2 |
Immingham to Panama 13.5 Kts. |
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Example 3 |
Noon Position to Saldhana Bay 13 Kts. |
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Example 4 |
Panama to Ko Sichang 12.5 Kts -
Typical route for a slow speed vessel. LTT at 20kts would apex at a much
higher latitude. |
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Example 5 |
Tees to Philadelphia 14 Kts - Three routing
options evaluated. |
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Example 6 |
Dodging Super Typhoon Ioke 13Kts - Head for
South Equatorial Current then east. |
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Example 7 |
Sunda Strait to Botany Bay 5 Kts - Tug and Tow. |
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Example 8 |
Vitoria to Port kembla 14.5 Kts - Several
Options (Caution: Large file) |
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Example 9 |
Fremantle to Cape town 13.5 Kts |
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Example 10 |
Tees to Brownsville 14kts - ETD 07/26/06 - Route
Differential = 1.0 Day. |
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Example 11 |
Tees to Brownsville 14kts - ETD 07/25/06 - Route
Differential = 0.9 Day. Significant beam swells South about at
T+96hrs and high GM = heavy rolling. |
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Example 12 |
Tees to Brownsville 14kts - ETD 07/18/06 - Route
Differential = 1.0 Day. |
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Example 13 |
SAD = (Simulator Assisted Deviation)- On
passage to Rotterdam |
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Example 14 |
Recalada Light to Pohang 13Kts - Surfing (East)
or Pounding (West)...Take your pick. |
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Example 15 |
Arendal to Maracaibo 8 kts - North and South
about Route Options for a tug and tow. |
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Example 16 |
Skaw to NOLA 12 Kts - 3 Passage options for a
slow vessel. |
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Example 17 |
Lazaro cardenas to Guangzhou- 14.0 Kts. South
about is both easier on the vessel and slightly quicker. |
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Example 18 |
Immingham to Montreal- 13.5 Kts. South about
saves time. |
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Example 19 |
Adelaide to Capetown- 13.5 Kts. - Additional
steaming on a southerly route saves 0.75 day. |
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Example 20 |
Auckland to Capetown- 13.0 Kts. |
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Example 21 |
Manila to Durban- 13.0 Kts. - An easy way to save
0.3 day. |
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Example 22 |
Durban to Kawasaki Ko- 13.5 Kts. - Minimal saving
on LTT plus the chance of meeting pirates. |
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Example 23 |
Shanghai to Seattle - 13.0 Kts. |
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Example 24 |
San Francisco to Ko Sichang - 13.5 Kts. - Save
more than a day over the LDT. |
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Example 25 |
Rotterdam to Panama - 13.5 Kts. -
Exploiting a window of opportunity. |
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Miscellaneous Files: |
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03/14/06 |
Gibraltar to Panama - 14 Kts. - You can't save on
every passage. |
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03/11/06 |
Antwerp to Brownsville - A nice passage almost
coincident with the Least Distance Track. |
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03/07/06 |
Los Angeles to Singapore - 14.0 Kts. A
significant deviation from the Least Distance Track saves over a day. |
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03/04/06 |
Gibraltar to Delaware Pilots - 14.0 Kts.
North about saves half a day. |
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03/02/06 |
Santos to Savannah - 13.5 Kts. A
simple deviation saves 0.25 day. |
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02/28/06 |
Philadelphia to Ijmuiden - 13 Kts - Least Time
Track is coincident with Least Distance Track. |
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02/27/06 |
Immingham to New Orleans - 14.0 Kts -
COST/BENEFIT ANALYSIS. - This is a good example of where the Optimum
Track for a vessel is most likely NOT the Least Time Track.
Of the three routes considered, OPTION 1 will save 0.6 Day. However,
that saving comes at the cost of much greater wave heights. |
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02/25/06 |
Vancouver to Kaohsiung - 14.0 Kts -
Rhumb Line - Takes almost 3 days longer. Also note the higher wave
heights encountered. |
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02/24/06 |
Vancouver to Kaohsiung - 14.0 Kts - North
about. Cost /Benefit of south about tomorrow. |
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02/23/06 |
Gibraltar to Newark - 13.0 Kts - Well planned
maneuver will save almost half a day in what will be a rough passage.
Stay clear of contrary currents and avoid the really heavy seas. |
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02/22/06 |
Norfolk to Antwerp - 12.0 Kts - Avoiding 10 mtr
waves. |
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02/21/06 |
Port Hueneme to Mizushima 13.5 Kts |
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02/20/06 |
Wellington to Capetown 12.5 Kts - Another simple
maneuver saves half a day. |
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02/19/06 |
Santander to Panama 13.5 Kts - An easy way to
save half a day. |
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02/16/06 |
San Francisco to Singapore 14kts - Drift a little
North to avoid the Japan Current and mid pacific wave action. |
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02/15/06 |
Vancouver to Fremantle 14 Kts - Stay South and
gain a little time. |
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02/14/06 |
Kolkata to Capetown 14 Kts - Frequently the Least
Distance Track cannot be improved on significantly. |
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02/12/06 |
UK to Azores - A user avoiding the worst of a North Atlantic storm with
12 m. wave heights. |
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02/10/06 |
Panama to Kaohsiung 21 Kts - Same passage
as yesterday at a much faster speed. Routing changes significantly. |
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02/09/06 |
Panama to Kaohsiung 13.5 Kts - Change the voyage
profile and save $100,000 with the help of near real time current data
from (OSCAR - Ocean Surface Current
Analyses - Real time) |
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02/08/06 |
Immingham to Panama - A good example of the Least
Time Track (LTT) also being the Master's preferred route. |
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02/07/06 |
Coos Bay to Inchon - Typical strategy for
a Westbound passage in the Pacific. For an example of how NOT to do
a Westbound passage see Whistler v Kawasaki -
Hill Harmony |
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02/06/06 |
Hong kong to Los Angeles - Using the North Pacific
current to save a half day. |
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02/05/06 |
Stavanger to Panama - A good example
of what might be considered an "Optimum Track" route. The predicted
saving of half a day will often go unrealized. |
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