Quick Guide to SPOS Weather to ECO Voyage Rev 1

8/13/2019 Quick Guide to SPOS Weather to ECO Voyage Rev 1

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Weather from SPOS to ECO Voyage

ECO Voyage can read weather data from SPOS, but this requires some preparation in SPOS.

Unfortunately will SPOS not automatically update weather file. This will describe how to

make data both for first plan and as voyage is progressing.

If you experience an Error, Blocked by land this can be corrected by changing the waypoint

track from Rhumb Line or Great Circle to Canal Passage (see next page).


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SPOS input

2. Press the Input tab

4. Choose the ECO

Voyage route, you

have exported

Can be changed to Canal

Passage to avoid problems

with Blocked by land

1. Start SPOS. Under Weather tab

update the forecast

3. Set Time to the Pilot departuretime and set the speed to

Required bottom speed

Recommended to set

Time between

waypoint to 6 hours


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SPOS route optimization1. Press the Route tab

2. Press the All buttonto make the calculation

of different alternatives

to optimize the planned

track.

Note: SPOS usually calculates four

alternatives: A great circle track, a

rhumb line track, a combined GC-

RL (composite) track and the

optimum track, which is distorted

according to the weather

prediction. The weather induced

speed loss usually makes all

alternatives appear slower than

the ECO Voyage figures, and can

be corrected by increasing the

Speed in calm weather under

the Input tab.


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SPOS Create Voyage

1. Choose the

Voyage tab

2. Press Create

Voyage button and

the dialogue box

appears

3. Choose the track,

you wish to follow,

provide a name and

click Next button

Note: You do not need

to fill in the remaining

textboxes. Press Next

and Finish

Note: This step is

necessary in order to

create weather

information to ECO

Voyage.


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The Weather Info tab

1. Choose the source of current

you want to use for calculation

and press the

button. The Mean (SPOS and

VESCOS) calculation method

will in most cases be optimal.

Info: The import of weather predictions will

allow the program to take the speed loss from

wind and wave encounters into consideration.

This will reduce unwanted oscillations in speed or

engine setting arising from varying conditions

during the voyage.

Info: Under this tab data for each leg may be corrected.

2. You might change

weather or current if data

seem unreasonable.

These may be corrected

for each leg from own

experience.

3. You might enter a max/min Speed from own

experience or from calculation by the Shallow water

tool. Or you might want a specific arrival time at a

certain WP

Note: Only rows where an Auto Fill checkbox is

shown can be edited.


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SPOS Update Voyage

1. Choose the

Voyage tab

2. Press Start

Voyage Update

button and the

dialogue box appears

3. Insert position and

time and click OK

button

Note: This step is

necessary in order to

update the weather

information into ECO

Voyage.

4. SPOS will calculate

remaining route with

latest weather

information. Press

Close


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SPOS Update Voyage

1. Press Finish

Voyage Update

button and the

dialogue box appears

2. Choose the track,

you wish to follow, and

click Next button

Note: You do not need

to fill in the remaining

textboxes.

Do NOT use Original

route for update.Sometimes a

waypoint is missing


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The Weather Info tab

1. Choose the source of current

you want to use for calculation

and press the

button. The Mean (SPOS and

VESCOS) calculation method

will in most cases be optimal.

Info: The import of weather predictions will

allow the program to take the speed loss fromwind and wave encounters into consideration.

This will reduce unwanted oscillations in speed or

engine setting arising from varying conditions

during the voyage.

Info: Under this tab data for each leg may be corrected.

2. You might change

weather or current if data

seem unreasonable.

These may be corrected

for each leg from own

experience.

3. You might enter a max/min Speed from own

experience or from calculation by the Shallow water

tool. Or you might want a specific arrival time at a

certain WP

Note: Only rows where an Auto Fill checkbox is

shown can be edited.

Documents

Quick Guide to SPOS Weather to ECO Voyage Rev 1