If an amateur wanted to ask a pro a few stupid questions about navigation, where would I do so?
yup they are the experts!
Think I found a new forum to post in & piss people off.
[QUOTE=“Jammer Six;111226”]If an amateur wanted to ask a pro a few stupid questions about navigation, where would I do so?[/QUOTE]
Ask away junior! Most of the old salts on here love answering newby “amateur” questions about anything involving the maritime industry. I’m sure you will find them warm and welcoming in acquainting you with the trade. They especially enjoy the redundant questions that have already been discussed in the depths of the ancient archives. This gives them the opportunity to revisit the question, and provide insight on any new information pertaining to the subject, lessons learned, etc. What ever you do, don’t use the search function to find your answer, that will really piss them off. Best of luck!
You got the stupid question part down!!!
Don’t worry about what these guys say, brow beating on people gives them their much needed daily ego boost.
What is your question about navigation?
Why do Timid Virgins Make Dull Companions a+ Weddings ?
Timid at first, but after they enjoy a few beverages on the house it is certainly expected that the “timid” and “dull” will change the progression of your initial observation.
I always heard that True Virgins Make Dull Companions(at weddings)
Of corse it also reminds me of another great mystery: Can Dead Men Vote Twice (at elections)?
Actually, I came here from there. My questions confused them.
I want to know about professional methods for updating charts.
Are there any formal methods for putting the LMNs on charts? If there are, where can I read about them?
And then there’s this:
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In District 13, in LMN 45/12, the Cathlamet Bay South Channel Light #2 was marked “TRLB”-- temporarily replaced with a lighted bouy.
In LMN 16/13, the Cathlamet Bay South Channel Light #2 was destroyed. That is, it was marked “Struct Dest” in the LMN.
In LMN 19/13, it was replaced with a temporary bouy with the same characteristics and number, some distance south.
In LMN 20/13, it was marked extinguished.
Which light was extinguished, the destroyed light or the temporary bouy?
Which light was destroyed in week 16?
It doesn’t make any sense to mark a light that has been destroyed as extinguished, but there isn’t anything in the LMN that differentiates between the destroyed light and the temporary replacement bouy.
Futhermore, it doesn’t make any sense to extinguish the temporary bouy until and unless the original light has been replaced and is functioning, but there isn’t anything that says that’s so, either.
I came from construction. You guys are sort of weak when it comes to hazing.
“Go out there!”
“Jump up and down!”
“Okay, it’s safe, come back in here and let me out there.”
ECDIS and satcom
First you need to understand the difference between a “discrepancy” and a “correction”. Dont confuse the two. Every NTM and LNM differentiate the two and list them in seperate parts. Only correct your charts as per the “Chart Corrections” section. An aid being “destroyed” or “extinguished” are types of discrepancies, usually reaported to us by mariners such as your self. In some instances we are able to fix them very quickly before the public even realizes there was an issue. If we cant, we will issue a BNM and include the discrepancy in the next LNM.
As far as temporary buoys, we establish them when there is a specific reason we CANT fix the buoy (ie parts, weather, new hull, etc) and leaving the channel/shoal unmarked poses a serious threat to safe vessel traffic. Temporary buoys can be added to your chart at your own discretion but will need to be removed when we remove them and fix the original.
Refer to the NAVCEN website for all notices and keep an eye out for BNM’s, as we release them quicker than LNM’s.
By the way I service Aids to Navigation in the USCG. Take it for what its worth…
After that answer, I can see ur gonna be a lifer, just me.
[QUOTE=BMCSRetired;112237]After that answer, I can see ur gonna be a lifer, just me.[/QUOTE]
Hey, theres only so many ways I can contribute around here!
And Im still on the fence about it…
[QUOTE=commtuna;112252]Hey, theres only so many ways I can contribute around here!
And Im still on the fence about it…[/QUOTE]
Just do it. I was in the same boat as you and I thank my lucky stars for the opportunities and most importantly, the retirement package. Just stay operational or teaching and u will be fine.
What about formal methodology for correcting charts?
Personally, I use the NTM from NGIA. You can set up a custom download of just the Charts and Pubs u need. They r usually ready Tuesday or Wednesday. I glance at the locals to see if there is anything exciting that may affect us.
We have cards for all our required charts and pubs as designated by the Master. We also do the same for our electronic charts. Once they are charged we make the corrections as we can on watch. The chart is initialled by the person making the correction and the card is initialed with the date corrected.
This is a lot simpler than when I was in the USCG and we did almost every chart from Maine to Florida and a lot of Caribbean charts EVERY week for corrections.
I have cards for every chart and publication.
[QUOTE=BMCSRetired;112332]We have cards for all our required charts and pubs as designated by the Master. We also do the same for our electronic charts. Once they are charged we make the corrections as we can on watch. The chart is initialled by the person making the correction and the card is initialed with the date corrected.[/QUOTE]
Okay, what’s on the cards?
What is “charged”?
Where do folks learn to do this? (Is there a class in a tech school or an academy?)
Is it done the same on every ship throughout the world? Throughout the U.S.?
I had figured out that there were some corrections that I make in pen and others in pencil-- but it didn’t occur to me that that difference was the difference between a correction and a discrepancy.