Passage Planning Route on ECDIS #ONBOARD #SHIP #PKO

We have come a long way since ECDIS was brought into our lives.

In the initial days we were just struggling to keep the ENCs updated on ECDIS.

But that is the thing of the past. Most of us know this drill at the back of hands now.

Route

The first element that you all may have guessed is the route.

And when it comes to choosing the route, there is nothing different from what we do even when were using paper charts.

We need to find the information from all the publications availabl
And once we have all the information, we need to use that to decide the route.

The route that we decide must follow all the company requirements and must be in accordance with the industry guidelines.

Let us see how to go about creating the route on ECDIS.
Route check.

We now need to make sure that the route that we have drawn is not passing through any dangers.

But before we do that, we need to set the safety settings on ECDIS according to our draft for the next voyage.

Parallel Indexing

Parallel index distances must be marked from the fixed objects on the route.

In the open sea, it is wise to choose any fixed object up to a range of 24 miles or less for marking the parallel index lines.

As your radar will be in the range of less than 12 miles in coastal waters, you can choose to mark parallel index lines from any fixed objects in that range.

And as we all know, the parallel indexing must not be done with floating objects like buoys.

NO GO Areas

We are required to mark the no-go areas along our route.

These are the areas that are the danger to navigation and we must not navigate into.
Wheel over position

Whenever there is a large alteration of the course, we need to mark a wheel over position.

This is the position on our initial course at which we need to start altering the course at a pre-planned rate of turn to arrive at the next desired course without running into the danger.

Marking of wheel over position is part of the passage planning.

Wheel over range and Bearing

If there is a fixed object near the wheel over position from which radar bearing/range or visual bearing can be taken, we need to define the wheel over position with respect to bearing/range from this object.
Other information

Then there is other information that we need to write on the ECDIS. These include

Watch levels

Contingency anchorages

Security levels and hardening measures

Reporting requirements

Calling the master

The point at which notice to be given to Engine room
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