Welcome everyone one more lesson to obtain the title of Skipper,
this time we will see the lines of position,
by radar distance at coast, line, opposition and delay.
Let us begin.
Let's see, how to draw a real delay in the nautical chart.
The delays are plotted just like the courses,
except that the mark to be made will remain on the opposite side to which we must trace the delay.
Exercise: Trace a true "Dv" delay of 130 ° to Cape Trafalgar.
Let's go to the nautical chart.
FIRST: We locate our protractor at the trafalgar rope.
SECOND: We mark the hundred and thirty degrees.
THIRD: We draw to the opposite line towards the Cape of trafalgar.
That is easy !; Let's move on to the next exercise.
In this exercise, we will learn to situate ourselves by two simultaneous delays.
EXERCISE: We take delay of needle "Da" at the end of trafalgar of one hundred and twenty-four degrees, and simultaneously to the roche end of sixty-four degrees, with a total correction of six degrees.
FIRST: We will obtain the real delays of Cape Trafalgar and Cabo Roche, by means of the following formula:
"Dv = Da + (± Ct)"
The true delay "Dv" after trafalgar is one hundred and thirty degrees.
With the cape roche we will do the same steps.
The true delay "Dv" at the roche end is seventy degrees.
Let's go to the nautical chart.
FIRST: We trace the true delay "Dv" of the Cape Trafalgar.
SECOND: We trace the true delay "Dv" of Cape Roche.
This crossing of straight lines is our "s" situation.
That is easy !; Let's move on to the next exercise.
In this exercise, we will learn to situate ourselves by two distances.
EXERCISE: We are located five miles from Cape Trafalgar and Cabo Roche.
Let's go, to the nautical chart.
FIRST: With the compass we mediated the distance of five miles on the scale.
SECOND: We mark a radius of five miles on both ends.
Where they are cut is our "s" situation.
That is easy !; Let's move on to the next exercise.
In this exercise, we will learn to situate ourselves by delay and opposition or leading.
EXERCISE: Our boat is in opposition to the end of trafalgar and tip of grace, is at a real delay "Dv" of a degree. Do you calculate the real delay "Dv" of Cabo Trafalgar and our situation?
Let's go, to the nautical chart.
FIRST: We draw the line of opposition, between the Cape Trafalgar and Punta Grace.
SECOND: We take the real delay "Dv" from the trafalgar line, from punta gracia.
We obtain a real delay "Dv" of Cape Trafalgar of two hundred and ninety-seven degrees.
Our real delay "Dv" of Cape Trafalgar is two hundred and ninety-seven degrees.
What situation do we have?
Let's go, to the nautical chart.
THIRD: We take the true delay "Dv" of a Barbate degree, and we trace it.
Where the straight lines intersect, it is our "s" situation.
That is easy !; Let's move on to the next exercise.
In this exercise, we will learn to position ourselves by opposition or radar heading and distance.
EXERCISE: We are in opposition of tip of thanks and corporal espartel, and at the minimum distance of malabata tip What is the situation?
Let's go, to the nautical chart.
FIRST: We draw the line of opposition between punta gracia and cabo espartel.
SECOND: With the protractor we draw a malabata line.
Where the two lines intersect is our "s" situation.
It's easy!
If you liked the video, leave me a liking, and your comments that are important.
I remind you, that the channel is completely free.
Until the next video.
Không có nhận xét nào:
Đăng nhận xét