Yes, that's exactly what I meant, but the Italian word "rilevamento" has been translated as "bearing."
Essentially, it means that the degrees don't change even though the distance decreases.

Answers as follows:-

1. To tell if you are on a collision course with another vessel in good visability - take bearings with the compass (the same one all the time) - if they are constant you are on a collision course.

2. To tell if you are on a collision course on radar - well this varies on how sophisticated the radar is and whether or not it is a gyro stabilised radar but basically the track of the ship in question will be in a straight line heading directly to you, tip, if you are using a old radar set with no bells and whistles - use a china graph pencil and mark the track of the ship on the screen every few minutes.

3. Here are some of the actions that should be taken in restricted visability - Post extra look outs, make the appropiate sound signals for your vessel, make sure the Captain/Master of your ship is aware of the situation, close and clip all watertight doors, keep a constant radar watch, send someone to check all the navigation lights, plot the ships position more often.
There may be many more depending on the shiping regulations of the company or the Captains standing orders. This may differ on military ships.

4. If you are on a collision course you should make a sound single of one short blast and make a bold turn to startboard, resuming you origional course when well clear of the vessel in question.

5. Even if you are not on a collision course if the CPA (closest point of approach) is within two miles(in open sea) you should inform the Captain/Master of your ship - one would assume if you are in a harbour the Captain/Master would be on the bridge anyway

These basic rules should be followed in principal even for model boaters.


Thanks you guys for all those that have participated in my QoD



Pat

1. How do you tell if you are on a collision course in good visibility.
I looka da Capitano da udda ship an he a looka me! An he getta bigga😮
2. How do you tell if you are on a collision course on radar.
Da due blipas a trasformarsi a onea bigga blipa!
3. Name two actions that should be taken on your ship in poor visibility.
Cleena da windascreena. Turna uppa da musica a maka bigga noise🙉
4. If you are on a collision course what action should you take.
Yella por da Mamma e jumpa overbordo🙊

😁😎

I get the impression that AI is watching my QoD !!

This is a very interesting topic.
I look forward to further comments for further insights and learning.
For now, I'll say that if the bearing doesn't change over time and the distance decreases, we're on a collision course.
Sound signals are provided for ships approaching a certain length, reducing speed, and turning to starboard to signal their intention.
In low-visibility situations, I'm reminded of the terrible Andrea Doria tragedy and everything that unfortunately wasn't done.

Hi Shippers

Now for something different:-

Situation - you are officer of the watch on a power vessel steering due North, at 5knots - there is a vessel 5 nautical miles steering due South, visability is poor, your ship is equiped with radar, according to the chart you are both in open water.

1. How do you tell if you are on a collision course in good visability.
2. How do you tell if you are on a collision course on radar.
3. Name two actions that should be taken on your ship in poor visability.
4. If you are on a collision course what action should you take.



Good Luck



Pat