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Thanks, the first time I have understood the traveler system.

I paid FULL PRICE for what I "thought" was a "Real Sextant" from Davis. Imagine my shock, surprise and out right ANGER when I opened the box and found a cheap, crappie TOY !!!!! Yup, I was ready to just chuck the whole mess right into the nearest DUMPSTER. And chock up the SEVERAL HUNDRED DOLLARS 💸 as a loss on my Tax return! But......... I decided to keep it. And for the last 18 years, I've shown it to over a thousand of our first years students on our Schools class on Marine Navigation. Everyone is VERY GREATFULL TOO ! Thus no one has to repeat my experience of spending HARD CASH for what is essentially a WORTHLESS TOY .

Thank you so much I enjoyed your instructional videos. I sailed to Hawaii from New Port beach without GPS in my college days. I used LAN and sunrise sunset with a hp 41 and a printer only with my sextant. My degree was in math. One of the things I used was taking sights and Regressing the sights to a quadratic. I didn’t need many sights every half hour for 2 hrs. I would do more on a bad day. The r2 value would tell me how accurate. That’s the best way to get LAN. I bought your book. I am interested in teaching your ease of demonstration is excellent. Thank you Fraser Schwalley

Thank you!!!!

Hi Chris, I hope you're doing well.

Don't leave in the boot/trunk of your car over a rainy winter, it will warp hopelessly out of alignment.

I ordered Mk25 version, didn't know better. BUT with my >65 years old eyes I have no problem seeing bright stars (those navigation stars listed on nautical almanac); Formalhaut is one of them. Then I found articles about the difference between the split window and the whole window. Too late for me to even experiment. Anyway there is a split window/glass kit under MK15 if one wants to convert over. I wish the LED on Mk25 is red light that'll be really nice to use besides my red light headlamp.

Old school pointing a camera at the screen instead of just doing a screen capture

Good video. I have one complaint. I am 70. When I sailed when there wasn’t any GPS. You are right about the accuracy using plotting . I only used it to log my trip. All my fixes were based on direct calculation. I used spherical trig with accounting for eccentricity. It gave me about 1/2 mile. If the sea was rough we would take several sights at one time. The noon sight I would use a parabolic regression. I have a lot of training with Math and controlled data error. The worst I got was 5 miles. The main thing today calculate it directly don’t interpolate. They have TI 36 pro. Solar it has power enough with its own battery to last 10 years. PS with today’s gnomic vector mapping you can draw Loops that is accurate to 0.2 of a mile. I wish I had that back then. Fraser Schwalley

Something I've always wondered about. Thank you.

Alguém saberia dizer porque as velas chinesas dispensam todo aquele estaiamento das velas convencionais? Os mastros chineses são limpos, sem cordas ao redor, dá pra utlizá-los em velas ocidentais?

Respectfully, those of us that are slip holders pay to have exclusive use of clubhouse facilities. If you spent an evening in a transient slip then you would have been afforded use of the facilities as we were years ago when we spent a night in a transient slip prior to berthing our new vessel there. The port-a-john is for the convenience of those stopping briefly to purchase fuel. Sorry you feel as you do, but this marina is a wonderful place to spend the season and visit. Prices are fair and and we have had a great experience each time we visited as transient and now as slip holders.

Thanks for this video! I'm learning CelNav now and, am going for all the cheats I can (though understanding is critical. In the 90* to azimuth, I bought a square protractor that has the zillions of squares grid which I find really helpful.

I am no expert but my Beneteau 331 PELIKAN is a GREAT boat! Do see how close to the wind we are pinching? Gads! Slow, for sure, but getting there. Only on the jib and in 7kts of wind we are still sailing, tight into the wind…(I wanted to get close to the buoy)….I did not even have the jib in as tight as it could have gone. My old Cape Dory 30 could never have done that (although it was a great boat in rough seas)….anyway, for upwind tight sailing PELIKAN is nice.

Hello Chris. Thank you for your excellent video. This might not be important or an issue, but does the type of keel affect the how the traveler is used and the results of moving the traveler? Thanks

Probably the most beautiful sailboat i have ever seen. Thanks.

Its time for the Professor to go back to school.

Thanks for the info !

Love it ! The Moment of Completion! Total Motivation 😀👍👍

Its all work out fine in protected flat waters. I am sailing in Caribbean with 5-10 foot seas and winds 15-25. Getting a stress free balance is nearly impossible due to wind gusts/wave action. I use traveler actively all the time. Next step is shorting the main. Final step de powering with mainsheet..

Beautiful Vessel!

Thank you, I never knew how to use the travelor. But you were very good at conveying the theory and I will now be able to implement it the next time I do a bare boat charter.

They're basic, and work. My biggest complaint is that the box is too small, you have to move the arm to fit it in the box. The 15 is great for a beginner.

The test performed on the magnetron only tests for continuity of the filament. The only other test you can do is a visual but even that is subjective.

I found this video searching for tutorials for my two students who are taking a Nautical Skills course for high school credit through AVTEC here in Alaska. This is just what they need. I'll be watching it as well to brush up on my skills since I've not used a calculator for navigation before.

Thank you 🙏

I don't like corn

I had a bad experience with DAVIS. I bought a new M15 sextant (on eBay) and the lens came loose from the 3X telescope. There was no way to fix it. I sent an email to Davis, including photos, and got no response. I sent it again and was told that customer service would respond. The answer came after I insisted, once again, and was "we don't have stock of this part. I asked for more information and no answer. They totally ignored me. So, a serious company is one that cares about the customer and this was not the Davis case with me.

thank you chris, well done, helps a lot...❤🎉

As a chinese ,I was very shocked to see this sailboat.very beautiful. it like real fu chuan （福船）。

Thank you. Well done!

Thanks

Hi Chris. Living my dream 👍

Can the Mark 15 also be used to shoot the Sun at noon, or is it more difficult than with the Mark 25?

@5:15..6:00 If you have two mainsheets, they serve the function of your traveler.

I want to add that the only way you would use radii is if you were either ignorant of the fact that the earth is flat or stupid enough to endorse it. There may be some Neanderthals around that have not gotten out of their cave.

I understand that the measurements of radii can only be used in a two dimensional or three dimensional space. Since celestial navigation is measured on the surface of a sphere, the radius is not relative. Good video!

One always has the option to temporarily change heading in order to reduce the load when making any kind of adjustment including the traveler. I just had to do so the other day to adjust the car for the jib sheet to better suite the conditions. Don't be stuck in the mindset that all adjustment must be done at the current point of sail.

Question the distance between the observer and the Celestial GP point, is that the radius line for a circle of equal altitude, and if it’s not then how is the radius measured ?

Caught nothing☹️

Needed to reach the channel at slack water to incoming tide…still got there a bit early…

I was way off…picked the first top of a hotel at 11.8 Miles…

Thank you. Never understood this before. Going to try it next time I take to the sea!

Great video. Thanks for sharing. Posted it to my community tab.

Incredibly knowledgeable on navigation . Thnx Much

Thank you for your clarification and your encouraging words!! I'm new to celestial navigation. So, as a newbie, I tried to get a sextant on a budget. I got myself a Davis Mark 3 and got started. Watching other videos of guys that are bragging how close they get to an actual GPS position. You can imagine, how disappointed I got, when my first fix was 9' off on Latitude and 11' in Longitude compared to GPS. Of course, I plotted it on a universal plotting sheet......😊I'm a landlubber, using an artificial horizon, who is eager to learn the art of celestial navigation. Your words encouraged me to carry on practicing.... Maybe one day I will get a chance to test my skills at sea..... Thanks again!

So right. Now I'm just an 'arm-chair' amateur that has always been fascinated by celestial navigation, and haven't been to sea since I left the Navy about... ahem... mumble-mumble years ago (okay, I'm old!). But I have a Davies mk 25 sextant and on a nice day when I get the urge, I'll take a noon sight just to see if I remember how. (using my UTC app on my phone for a chronometer) But sitting on my back deck, with an artificial horizon and a current copy of the Nautical Almanac, the BEST I've ever gotten is about 3.5 miles from my GPS location. Often I'm off by quite a bit more. And that's already knowing what the answer should be. lol Watching this, it makes me feel better, knowing I can even get that. :)

I agree with David Bowie, the best and easiest way to ease weather helm temporarily is to de-power the mainsail via the traverler. It will keep the shape that you have set so you can quickly adjust it back when the wind puff/pressure returns to its original strength. But if the wind doesn't ease, reducing sail area is the next option. As the mainsail trimmer for 12 years, I learned to watch the skipper as he helmed the boat and if he had to steer harder into the wind, I would let the traveler go leeward and then return it quickly when he started to helm the opposite way. If I didn't, he would quickly let me know.

You can compensate for weather helm or lee ward helm just buy adjusting your jib and your main sail. The jib is always wanting to take you down wind where as the main sail is always wanting to take you up wind . If your boat is pulling one way or the other. Then adjust one of these sales accordingly. To either Depower or increase their effects on the boat. What the traveler allows you to do is to maintain sail shape while depowering the main !! This is useful if you want to fine-tune an up wind course. And yes, that should be your first option if you feel that the main sail is being overpowered. But don’t sleep on this. You probably should be reefing fairly soon after, especially if the wind is maintaining or getting stronger.

No travel a car that exists can move such a wide distance to get to the infinity setting in your graph