I am familiar with running fixes, but this video is a very easy and simplified explanation of how to to a running fix. I recommend it to all navigators.
The second fix does not necessarily have to be on the first object (lighthouse). It may become obscured by mist or an island or headland. You can take the second bearing on another landmark and tranfer the first as normal.
Correction - running fixes simply mean that previous bearings are brought forward to current bearings. The bearings can be off the same or different chart identifiable objects. It is a common misconception that the bearings must be off the same object. In celestial navigation bearings off stars are brought forward to daylight bearings off the Sun to establish a RFix.
I wish you actually animated the.step of advancing the line of position. I don’t actually understand how the line is moved in the appropriate direction. (You just show it popped to the new position.) Thanks.
You want to use a bearing compass (handheld) for taking a magnetic bearing, very rarely it can be done with the boat's steering compass. In big ships, a pelorus is used to obtain a relative bearing that you convert to magnetic bearing by adding the boat's heading. After you have your number, remember to convert to true bearing so you can plot it in the chart
The parallel move of the first bearing even though it is correct, has no logical explanation. Instead We can move our estimated COG line parallel to fit the Gap between the two bearings. That makes more sense to me...
Same thing really..., but yes ,good point about what you said here , but I think it makes sense on the video when you are using the proper instruments to do chart plotting.
I might be wrong, but even though it seems weird, you'd be sliding over along that same angle, as if you're sliding that line down a rail until it meets the second bearing line. Since the rail you're moving down is the angle of the first bearing, you might as well parallel that measurement up to the top and imagine it as a second track like a top and bottom of a sliding glass door.
@@aaronbivins1953 Geometrically is the exact same process but as a logical explanation I think is better to fit the lenght in the gap. It just makes more sense for a student...
I am familiar with running fixes, but this video is a very easy and simplified explanation of how to to a running fix. I recommend it to all navigators.
Many thanks, well clear unlike several books I'm reading!
Thanks for explaining this in a clear, straightforward way. And I like the E6B in your title still! Nice.
Probably the single best vid on navigation I've seen!❤
This is the first explanation I found that made sense. I passed the 1600gt master chart plot exam because of this video.
Thank you for sharing this ! You're a good teacher mate.
Thank you, Sir! Its very simple and easy to digest. Just don't delete the video, Sir!
Very clear and understood, Thanks for the lecturer👍
Good video, thanks. Will recommend to ORCV navigation training participants to watch if thats OK
The second fix does not necessarily have to be on the first object (lighthouse). It may become obscured by mist or an island or headland. You can take the second bearing on another landmark and tranfer the first as normal.
Yes right
Correction - running fixes simply mean that previous bearings are brought forward to current bearings. The bearings can be off the same or different chart identifiable objects. It is a common misconception that the bearings must be off the same object. In celestial navigation bearings off stars are brought forward to daylight bearings off the Sun to establish a RFix.
very clear and uncomplicated. Thank you
Excellent explanation.
its awesome ............ how about demonstrating about raising and dipping or first seen last seen (lights)
Thanks, now I can do my homework.
Very clearly taught... thanks Greg!
Very nice. I've added you to my bookmarks.
Thanks Greg, well explained as always.
Thank you for the excellent explanations!
G'day cobber. Nice and clear. Thanks for that.
Perfectly explained. Thank you!
Love it! Thank you kindly-Fair winds.
this is very well explained. thank you.
Very helpful...thanks for ur efforts
great video. well delivered
well understood thanks
I am studying this, Can u help me with this question:
What factors affect the reliability and accuracy of fixes? List four.
thanks. It's awesome.
You saved me. Your a god!
Fantastic 👌
Thank you for this!
You meant to say you placed the set and drift mark 1/2 NM, not 1 NM. You said it right the first time, not the 2nd time. But =you may be right.
Very nice video, thank you so much
but what if the current information was not enough. I mean i have the rate only, what to do in this situation ?
if we apply set and drift then it already EStimated position.
Thank you 🙏
I wish you actually animated the.step of advancing the line of position. I don’t actually understand how the line is moved in the appropriate direction. (You just show it popped to the new position.) Thanks.
Muchas Gracias mate.
Make a video on double angle of bow
set and drift based on lat long right? so how come the actual boat position so far away from the lat long ? i didnt get it
kindly tell us about 2 point bearing.
is gyro compass use to take a bearing of the object?
You want to use a bearing compass (handheld) for taking a magnetic bearing, very rarely it can be done with the boat's steering compass. In big ships, a pelorus is used to obtain a relative bearing that you convert to magnetic bearing by adding the boat's heading. After you have your number, remember to convert to true bearing so you can plot it in the chart
I would like a detailed step-by-step height of tide at a given time
Vin Lucante Thanks for the feedback Vin. I should be able to put something together about that. It is an interesting topic.
if you are manoeuvering a ship at sea, how do you identify wether you are drifting or not? got any indicator to show your drifting speed and course?
Set and drift is indicative by a larger error in the ESTIMATED POSITION in comparison to a mich lesser error in the E.P...
Idk why this is like learning a foreign language for me arrrrrggghhhhhh
The parallel move of the first bearing even though it is correct, has no logical explanation. Instead We can move our estimated COG line parallel to fit the Gap between the two bearings. That makes more sense to me...
Same thing really..., but yes ,good point about what you said here , but I think it makes sense on the video when you are using the proper instruments to do chart plotting.
I might be wrong, but even though it seems weird, you'd be sliding over along that same angle, as if you're sliding that line down a rail until it meets the second bearing line. Since the rail you're moving down is the angle of the first bearing, you might as well parallel that measurement up to the top and imagine it as a second track like a top and bottom of a sliding glass door.
@@aaronbivins1953 Geometrically is the exact same process but as a logical explanation I think is better to fit the lenght in the gap. It just makes more sense for a student...
thanks .....
does the time need to be converted to true? i still don't quite understand how to do it
no
Not clear to me why the magnetic must be converted to true.
because we use true on a chart
you ignored leeway
AMERIKA SERIKAT DAN INGGRIS BAGAIMANAKAH MEMISAHKAN ATURAN IMO 15 SEPTEMBER 1973 PADA MASING MASING KE TIGA DUNIA ITU SENDIRI ?????
It's obvious you don't really know what you're doing