Can someone help explain this to me? Cel Nav question

Dude I don’t know what sport you’re playing. Must be soccer.

I don’t know why you’re commenting on this if you don’t know how to do it.

You’re the one that posted a link with a detailed description of the problem and still don’t appear to understand it. :man_shrugging:

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Am I missing something obvious here? In 24 hour time that I always use there is no AM or PM?
I’ll admit this place didn’t exist last time I needed to use a sextant, but I think I remember that much.

Chronometer time is on a 12-hour basis while GMT is 24-hour. The problem might be considered to be a “trick question”.

Knowing how to solve it requires having done a lot of studying similar problems as opposed to simply memorizing the answers.

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That IS a trick question! They are using a literal hour and minute hand chronometer. Even way back then we had a digital watch and WWV.
That one would have caught me out for sure!

I prefer to think of them as ‘detail-oriented training’.

JDCavo posted a good thought on the USCG and ‘trick questions’ once but I can’t remember it exactly.

If you start each question by writing down what you need to solve the question on your scratch paper then reviewing it these are pretty easy. If you just dive into solving it you will get caught, which happens in everyday navigation too.

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At school the nav professor was doing stuff like adding double negatives or some convoluted scenario about landing lights causing compass errors and then having the actual question way down the paragraph being unrelated.
He said details matter, read the whole question and take your time or you will get bit in the ass.

Probably that often what is often considered a “trick” is was noted above, that common errors (e.g. applying compass error in the wrong direction) were identified and a “distractor” (wrong answer) included that corresponds to the common error.

Yes, that’s not a trick question, that’s just smart multiple choice test writing.

I’m not sure I’d consider these chronometer questions trick questions either but they’re pointlessly complex. No one taking a sight wouldn’t know which time to use in reality. I mean, seriously…

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Thank you all for the amount of replies. The link provided by MAK was very helpful. The authoer of the article details the exact problem I posted. Pretty cool! Let’s not get into bickering matches about it…but yes I concur the industry is full of ball busting :sweat_smile:

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Anyone having trouble accessing Lapware? Seems to have been down all day. Can’t seem to get ahold of Richard Plant.

Yeah seems to have been down all day. I talked to him a couple days ago because I wasent able to log in

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I agree with @Capt_Phoenix that’s it’s not a trick question but it is unnecessarily difficult. Back in the day the approach would be to skip it and hopefully run into an easier version, for example sunrise / sunset with the 12-hr / 24 hr ambiguity.

Now the quickest way is to search for something like: “On 16 June in DR position LAT 50° 57.0’ S, LONG 53° 03.9’ W (ZD+4), you take an ex-meridian observation of Acrux”

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How to Solve it by G. Polya. It’s from 1945 but it’s considered a classic

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How do you recommend I contact him? I tried contacting him 3 times over the last few weeks with some other issues with no reply. Now this. Taking exams a week from Monday. :dizzy_face:

I just got off the phone with Ed and it’s a sever issue with the host it’s not their fault . Hopefully you have some shit printed out

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Thanks for looking into it, I appreciate it. Richard seems to be ignoring emails as usual. Unfortunately nothing printed out, so I’m making do with Upgrade for the time being. I really like the solution pdfs explaining how to do stuff with Lapware though. Hopefully they get it up soon. Thanks again.

Howdy, I sent a DM with a passcode to this online prep course in case it is helpful at all, no worries if not: Navigation Problems for USCG Exams | Practical Navigator Training It has video solutions to all the cel nav types of problems. Good luck with your exams!

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Thank you so much I will give that a try!!!

I can recommend USCG Cuttermans stuff very highly

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