In my quest to develop a practical and pragmatic approach to celestial navigation, I have been exploring the use of a calculator to perform sight reductions. This doesn't eliminate the need for worksheets yet but does open further opportunities to get into the mathematical background of celestial navigation. I don't intend to become a mathematician but to understand as much as I can the workings and solutions of the navigational triangle. So far two formulas form the basis of sight reductions by calculator. They are...
sin Hc = (sin d x sin L) + (cos L x cos d x cos LHA)
and
cos A = (sin d - (sin L x sin Hc)) / (cos L x cos Hc)
where...
Hc = Computed Altitude
d = declination
L = Latitude
LHA = Local Hour Angle
A programmable scientific calculator is needed to store programs and retrieve the variables. Not too expensive - if you end up going this way on a long ocean passage, a backup or two would be wanted.
These two formulas are just the tip of the spherical trigonometry ice berg. I will explore others that are at least as approachable - remember I'm not a mathematician, or an astrophysicist - yet.
The results have been interested and add another dimension to all of this. In my wish to be able to take real sights and perform real navigation on the water during a passage, the following benefits are observations come to bear:
- Need only the Nautical Almanac
- No need to carry Pub 249 (Vol 2 and 3) Tables
- Vol 1 is needed for preplanning of star sights
- No need to carry Pub 229 Tables
- No need to apply Precession and Nutation corrections
- Assumed position can be the exact DR for Lat and Long - which allows for an increased level of accuracy because whole numbers for Lat and LHA are no longer required
- Azimuth correction is achieved
- Must use a stars SHA to determine the stars LHA for Hc
- Accuracy of fixes can be better by calculator - but by tables could sometimes be more accurate than calculator - I will need to do a bunch to see how this holds up and possibly to determine why
Sight reduction by calculator doesn't dismiss the paperwork done by worksheet but it does allow you to be a bit quicker in performing the work to arrive at a fix - without having to leaf through multiple pages of tables and entries. There are lots of opportunities to make a mistake and the calculator takes away a few of these opportunities.
The worksheets are still key to arriving at Ho, LHA and dec - which are the entry points to the Pub 249 and 229 tables.
I accept the use of a calculator as part of the 'acoustic' environment because the calculator doesn't rely totally on battery power but is also solar powered. Exposure to salt water spray or being dropped overboard will negate any attempt to be entirely self reliant in the goal of navigating through human and natural power.
...looking for that vagabond wind... sailing adventures, observations, conversations and prognostications...
Monday, 18 January 2016
Monday, 28 December 2015
Dip Short in Celestial Navigation
For those that practice Celestial Navigation in Coastal, Inland or locations where a proper sea horizon can't be obtained - a correction can be made to compensate for that shortfall - it is call Dip Short, for when the distance to a natural sea horizon is shorter. Of course this won't be of much use other than to practice obtaining your sights because in those locations you really ought to know where you are anyway through other means.
My source for this is John Karl's Celestial Navigation in the GPS Age.
The simple formula is...
DipShort = 0.415767 x d + 0.565786 x h / d, where d is distance in nm and h is height in feet
Or the following Table...
My source for this is John Karl's Celestial Navigation in the GPS Age.
The simple formula is...
DipShort = 0.415767 x d + 0.565786 x h / d, where d is distance in nm and h is height in feet
Or the following Table...
Thursday, 17 December 2015
Celestial Navigation Videos by Navigation Training...
I came across the YouTube channel just recently. A terrific primer on CelNav filmed on location off a sailboat and beaches of the West Indies - I will go there for this course anytime!
The YouTube channel for all videos can be found here...
https://www.youtube.com/playlist?list=PLah9ocjQNN0Zr7-oKE58wTzXE4XaQU64E
The intro here...
A number of resources - books, sites, etc. can also be found on this related web site...
http://www.practicalnavigator.org/
Well done Chris Nolan.
Have fun!
The YouTube channel for all videos can be found here...
https://www.youtube.com/playlist?list=PLah9ocjQNN0Zr7-oKE58wTzXE4XaQU64E
The intro here...
A number of resources - books, sites, etc. can also be found on this related web site...
http://www.practicalnavigator.org/
Well done Chris Nolan.
Have fun!
Saturday, 12 December 2015
Artificial Horizons...
Boats are out of the water, no horizon anywhere to be found - what is a guy to do to get a sight around here?
It is called an Artificial Horizon and it looks like this...it is an indoor and outdoor solution complete with shaded panels for sun shots...
Fill it with water or some other viscous fluid and off you go.
Don't forget to halve the altitude when you do the sight reduction.
This one you can use in your backyard, it is contained and helps to keep the wind from stirring up the reflection and the sight. The principle is that you get a double angle of sight through the reflection and the object when no horizon is visible, ie. many miles ashore and on land. It allows you to practice taking sights during the long. cold winters ashore - as long as you have a celestial body available and it doesn't remain hidden in cloudy skies, backyard trees and other house's rooflines.
Here is how and why it works...
If you can see it - you can shoot it.
Here is my indoor solution - minus comfy chair and coffee cup...
All you need is a bowl of water - filled to the brim to catch low angle bodies - sitting or standing still so that the vibration through the floor keeps the water still. I have read that the use of molasis or maple syrup can be used as a more viscous liquid to keep the things from getting stirred up.
I have a small aperture of sky available to me but have successfully been able to shoot the sun, moon, planets and stars from the warm and cozy confines of my nook overlooking the backyard deck and southern, southwestern sky. The indoor approach is limited by the amount of visible sky you have while the outdoor approach is limited by the same - although more sky may be visible but impacted by wind on the water or other reflective liquid, and possible vibrations through deck or ground vibrations, ie. a train , truck or bus rumbling through nearby.
Through this approach, you don't need to do running fixes as the old 'Stone Frigate' never moves. You can practice taking sights and plotting continuously to see how you do under various conditions.
Some of the conditions that I have dealt with are as follows...
- taking quick sights before an oncoming cloud obscures the sun
- waiting for a body to get past the roof eave of a neighbouring house to get a clear sight
- estimating where the sun's lower limb is - as it is partially obscured by tree branches in the foreground
- raising or lowering the artificial horizon in order to obtain a higher or lower angle body
- leaning around various hanging indoor objects to get a shot to the outdoors
- windy days that cause ripples inside the house
Planets and stars are caught as pinpricks and overlayed over each other to take a sight - wear your glasses as distortions cause errors. Sun and moon sights are index mirror images kissing reflected horizon mirror below as lower limb sights - and vice versa as upper limb sights. Or you can overlay both objects directly over top of each other and applying the main correction for stars, not LL or UL for the Sun. Take multiple sights and average them out.
A modification must be made to shoot stars and planets as their reflections won't be seen in the water. I have been successful in floating a small mirror on a piece of wood, and gotten some very accurate sights. Don't let the wood float in the water bath too long as it will get waterlogged and possibly not remain level. Make sure mirror and any windows you are sighting through are clean so that maximum light can be captured.
The modification to allow planet and star shots...
My goal in all this is to be dealing with all manner of weather conditions in order to be able to be quicker and more accurate in taking sights. It is also a lot of fun to wake up early - not to deal with the twilight observation period - to shoot stars and planets whenever you want - at any time of a clear night.
You have to be sure that the wood has not become waterlogged and therefore not level. If a star sight does not compare favourably with the altitude on Stellarium, I know that I need to replace the wood. I may need to consider sealing the wood or finding something else that will float at level in order to get accurate sights.
If only there was a way to create an artificial horizon that would allow you to shoot stars and planets at night on a heaving boat.
You could even imagine setting things up so that you can be taking sights from your easy chair, coffee nearby, you are nice and warm - listening to your favourite music. How bad can that be?
It is called an Artificial Horizon and it looks like this...it is an indoor and outdoor solution complete with shaded panels for sun shots...
![]() |
from Davis Instruments |
Fill it with water or some other viscous fluid and off you go.
Don't forget to halve the altitude when you do the sight reduction.
This one you can use in your backyard, it is contained and helps to keep the wind from stirring up the reflection and the sight. The principle is that you get a double angle of sight through the reflection and the object when no horizon is visible, ie. many miles ashore and on land. It allows you to practice taking sights during the long. cold winters ashore - as long as you have a celestial body available and it doesn't remain hidden in cloudy skies, backyard trees and other house's rooflines.
Here is how and why it works...
If you can see it - you can shoot it.
Here is my indoor solution - minus comfy chair and coffee cup...
![]() |
A Tub of Water is All You Need! |
All you need is a bowl of water - filled to the brim to catch low angle bodies - sitting or standing still so that the vibration through the floor keeps the water still. I have read that the use of molasis or maple syrup can be used as a more viscous liquid to keep the things from getting stirred up.
I have a small aperture of sky available to me but have successfully been able to shoot the sun, moon, planets and stars from the warm and cozy confines of my nook overlooking the backyard deck and southern, southwestern sky. The indoor approach is limited by the amount of visible sky you have while the outdoor approach is limited by the same - although more sky may be visible but impacted by wind on the water or other reflective liquid, and possible vibrations through deck or ground vibrations, ie. a train , truck or bus rumbling through nearby.
Through this approach, you don't need to do running fixes as the old 'Stone Frigate' never moves. You can practice taking sights and plotting continuously to see how you do under various conditions.
Some of the conditions that I have dealt with are as follows...
- taking quick sights before an oncoming cloud obscures the sun
- waiting for a body to get past the roof eave of a neighbouring house to get a clear sight
- estimating where the sun's lower limb is - as it is partially obscured by tree branches in the foreground
- raising or lowering the artificial horizon in order to obtain a higher or lower angle body
- leaning around various hanging indoor objects to get a shot to the outdoors
- windy days that cause ripples inside the house
Planets and stars are caught as pinpricks and overlayed over each other to take a sight - wear your glasses as distortions cause errors. Sun and moon sights are index mirror images kissing reflected horizon mirror below as lower limb sights - and vice versa as upper limb sights. Or you can overlay both objects directly over top of each other and applying the main correction for stars, not LL or UL for the Sun. Take multiple sights and average them out.
A modification must be made to shoot stars and planets as their reflections won't be seen in the water. I have been successful in floating a small mirror on a piece of wood, and gotten some very accurate sights. Don't let the wood float in the water bath too long as it will get waterlogged and possibly not remain level. Make sure mirror and any windows you are sighting through are clean so that maximum light can be captured.
The modification to allow planet and star shots...
![]() |
A Small Makeup Mirror on a Piece of Wood Floating on Water |
My goal in all this is to be dealing with all manner of weather conditions in order to be able to be quicker and more accurate in taking sights. It is also a lot of fun to wake up early - not to deal with the twilight observation period - to shoot stars and planets whenever you want - at any time of a clear night.
You have to be sure that the wood has not become waterlogged and therefore not level. If a star sight does not compare favourably with the altitude on Stellarium, I know that I need to replace the wood. I may need to consider sealing the wood or finding something else that will float at level in order to get accurate sights.
If only there was a way to create an artificial horizon that would allow you to shoot stars and planets at night on a heaving boat.
You could even imagine setting things up so that you can be taking sights from your easy chair, coffee nearby, you are nice and warm - listening to your favourite music. How bad can that be?
Saturday, 28 November 2015
Back Sight in Celestial Navigation
Running through some practice questions I encountered the following...
From Leonard Gray's 100 Problems in Celestial Navigation...
Problem 4-8
From our 0719 July 8, 1993 fix at 40deg 00'N, 42deg58'W, we continue on course 090deg at 6.0 knots. Our height of eye is still 9 feet, but we check the sextant and find that its I.C. is now -2'.0. We'd like another fix when the haze clears. The moon and sun are nearly opposite in the sky, so we won't get a sun-moon fix. We will rely on a running fix of the sun.
When the sun rises, the horizon under it is still obscured, and stays that way all morning, although it is clear in the opposite direction. We decide to get a backsight - point the sextant toward the horizon opposite the sun, and measure the angle from there past the zenith to the sun. Therefore, the body we are backsighting must be high enough so that 180deg - Hs is not beyond the range of our sextant (120deg or so). We get three backsights of the sun, and three hours later, when the sun has moved to the southwest, get three regular lower-limb sights.
BODY/GMT/Hs
Sun (backsight*)/14-10-05/109deg31'.6
Sun (backsight*)/14-11-46/109deg19'.5
Sun (backsight*)/14-13-23/109deg13'.6
Sun/17-01-39/57deg07'.3
Sun/17-03-20/56deg46'.9
Sun/17-04-55/56deg30'.0
*-Appears in the horizon glass to be a lower-limb sight.
There are two ways to work a backsight. We will use the easier, more logical one: apply the normal I.C. and dip corrections to Hs. subtract the result from 180deg, then apply the S.D. correction, but in reverse. If the sight appeared to be on the lower limb (as in this case), use the UL correction. If it looked like an upper-limb sight, use the LL correction. (For a star or a planet, apply the normal refraction correction in this third step.) What is our July 8 1413-1705 R.fix?
This appeared to make some interesting kind of sense but I couldn't get my head around visualizing how this sight could be taken to catch the sun while looking the opposite way. Was there something tricky in holding the sextant sideways or upside down to take this sight? Anyway that I held the sextant and imagining looking away to the opposite horizon couldn't resolve the sight in my mind. Time to google it in search of a diagram...
Nothing came up except the following...
From David Burch's Starpath School of Navigation, a forum conversation...
http://www.starpath.com/cgi-bin/ubb/ultimatebb.cgi?ubb=get_topic;f=16;t=000155
An excerpt from Bowditch's American Practical Navigator, on page 246...
http://msi.nga.mil/MSISiteContent/StaticFiles/NAV_PUBS/APN/Chapt-16.pdf
And another excerpt from the following - halfway down under heading of TAKING A SIGHT - this is also a very good primer on Celestial Navigation...
http://oceannavigation.blogspot.ca/2009/02/celestial-navigation-notes.html
And finally from Dutton's Nautical Navigation (15th Edition) by Thomas J. Cutler...
When the horizon is poorly defined and a star at high altitude is visible, it may be desirable to take both direct and back (over the shoulder) sights. In this latter technique, the observer faces away from the body and measures the supplement of the altitude (180deg - sextant reading = observed altitude). The arc that appears when "rocking" the sextant is inverted, with the highest point on the arc the position of perpendicularity; practice is required for accuracy in taking back sights. The results of the direct and back sights are compared and usually averaged.
This all represented a good amount of consistent explanation and background, but I was hoping to find a diagram so that I could 'see' how this sight was to be taken. A few emails out to some Celestial Navigation instructors that I knew with the following responses...
From Dominique Prinet of Vancouver Marine Courses - (http://www.vancouvermarinecourses.com/) - who also has an excellent book on Celestial Navigation...
Now I get it. Cool, never thought of doing this. Yes, the catch is the sun has to be high enough so that you don't go past 120 degrees to get it. Then, as the author points out, your sight will be upside down because you have gone past your Zenith, the upper limb will look like the lower limb and you will have to apply the upper limb correction., etc. Very clever. I like it. Just for the hell of it, I will try this one of these days. Maybe on the Celestial Cruise next summer.
From Barrie Hudson of International Navigation School (www.learntonavigate.com) - who runs a great program on navigation...
Yes I know them. Make sure you are sitting in a chair because it is convenient for a backwards lean. See explanation by Cotter and calculation. I’ve used it when coasting in my keener days. Note recco. Stay away from angles smaller than 60 degrees for obvious reasons.
Barrie's explanation and calculation as follows...
From Leonard Gray's 100 Problems in Celestial Navigation...
Problem 4-8
From our 0719 July 8, 1993 fix at 40deg 00'N, 42deg58'W, we continue on course 090deg at 6.0 knots. Our height of eye is still 9 feet, but we check the sextant and find that its I.C. is now -2'.0. We'd like another fix when the haze clears. The moon and sun are nearly opposite in the sky, so we won't get a sun-moon fix. We will rely on a running fix of the sun.
When the sun rises, the horizon under it is still obscured, and stays that way all morning, although it is clear in the opposite direction. We decide to get a backsight - point the sextant toward the horizon opposite the sun, and measure the angle from there past the zenith to the sun. Therefore, the body we are backsighting must be high enough so that 180deg - Hs is not beyond the range of our sextant (120deg or so). We get three backsights of the sun, and three hours later, when the sun has moved to the southwest, get three regular lower-limb sights.
BODY/GMT/Hs
Sun (backsight*)/14-10-05/109deg31'.6
Sun (backsight*)/14-11-46/109deg19'.5
Sun (backsight*)/14-13-23/109deg13'.6
Sun/17-01-39/57deg07'.3
Sun/17-03-20/56deg46'.9
Sun/17-04-55/56deg30'.0
*-Appears in the horizon glass to be a lower-limb sight.
There are two ways to work a backsight. We will use the easier, more logical one: apply the normal I.C. and dip corrections to Hs. subtract the result from 180deg, then apply the S.D. correction, but in reverse. If the sight appeared to be on the lower limb (as in this case), use the UL correction. If it looked like an upper-limb sight, use the LL correction. (For a star or a planet, apply the normal refraction correction in this third step.) What is our July 8 1413-1705 R.fix?
This appeared to make some interesting kind of sense but I couldn't get my head around visualizing how this sight could be taken to catch the sun while looking the opposite way. Was there something tricky in holding the sextant sideways or upside down to take this sight? Anyway that I held the sextant and imagining looking away to the opposite horizon couldn't resolve the sight in my mind. Time to google it in search of a diagram...
Nothing came up except the following...
From David Burch's Starpath School of Navigation, a forum conversation...
http://www.starpath.com/cgi-bin/ubb/ultimatebb.cgi?ubb=get_topic;f=16;t=000155
An excerpt from Bowditch's American Practical Navigator, on page 246...
http://msi.nga.mil/MSISiteContent/StaticFiles/NAV_PUBS/APN/Chapt-16.pdf
And another excerpt from the following - halfway down under heading of TAKING A SIGHT - this is also a very good primer on Celestial Navigation...
http://oceannavigation.blogspot.ca/2009/02/celestial-navigation-notes.html
And finally from Dutton's Nautical Navigation (15th Edition) by Thomas J. Cutler...
When the horizon is poorly defined and a star at high altitude is visible, it may be desirable to take both direct and back (over the shoulder) sights. In this latter technique, the observer faces away from the body and measures the supplement of the altitude (180deg - sextant reading = observed altitude). The arc that appears when "rocking" the sextant is inverted, with the highest point on the arc the position of perpendicularity; practice is required for accuracy in taking back sights. The results of the direct and back sights are compared and usually averaged.
This all represented a good amount of consistent explanation and background, but I was hoping to find a diagram so that I could 'see' how this sight was to be taken. A few emails out to some Celestial Navigation instructors that I knew with the following responses...
From Dominique Prinet of Vancouver Marine Courses - (http://www.vancouvermarinecourses.com/) - who also has an excellent book on Celestial Navigation...
I had never heard of a back-sight. It
seems that, when the sun is quite high up above the horizon, you can take the
sight by looking the other way around, over your shoulder with the sextant, and
see the sun just behind you and above your head. The sextant allows taking
sights of up to 120˚ (2 x 60˚ because angles double after reflexion on a
mirror, a “sextant” covering one sixth of a circle, or 60 ˚). So, if the sun is
70 ˚ above the horizon on one side, it’s 110 ˚ above the horizon from the other
side. And the upper limb becomes the lower limb. Funny. It can be useful close
to the equator, when the ocean horizon is on the side away from the sun, i.e.
you are taking a sight with an island close by in the direction of the sun but
a clear ocean-horizon away from the sun. I hadn’t thought of it.
From Clive Smith of Harbourfront Centre Sail and Power - (www.harbourfrontcentre.com/boating/) ...
Now I get it. Cool, never thought of doing this. Yes, the catch is the sun has to be high enough so that you don't go past 120 degrees to get it. Then, as the author points out, your sight will be upside down because you have gone past your Zenith, the upper limb will look like the lower limb and you will have to apply the upper limb correction., etc. Very clever. I like it. Just for the hell of it, I will try this one of these days. Maybe on the Celestial Cruise next summer.
From Barrie Hudson of International Navigation School (www.learntonavigate.com) - who runs a great program on navigation...
Yes I know them. Make sure you are sitting in a chair because it is convenient for a backwards lean. See explanation by Cotter and calculation. I’ve used it when coasting in my keener days. Note recco. Stay away from angles smaller than 60 degrees for obvious reasons.
Barrie's explanation and calculation as follows...
![]() |
The Explanation and Visual... |
![]() |
...and the Calculation. |
Friday, 30 October 2015
Celestial Navigation Practice Passage (No. 3)
![]() |
Cape Verde to St. Lucia via Celestial Navigation |
I found a blog that put forward a hypothetical passage from Cape Verde to the Caribbean, that had a complete toolkit of sights - Sun/Run/Sun, Noon Sun, Planets, Moon and Stars. They also had a few errors that had to be dealt with. A point of interest was to maintain an ongoing log of DR's for the entire passage - this was the trickiest part - would be a lot easier if plotted on a chart.
A reference log of accurate GPS positions was available for comparison and for the most part, the majority of fixes were close to very close, with a handful still to be reconciled (perhaps more built in mistakes to be solved).
Anyway it was a fun exercise to do.
Next task - Practice Passages No. 1 and 2.
The blog site is here...
https://celestialnavproblems.wordpress.com/
Wednesday, 14 October 2015
Vancouver Island Circumnavigation...
![]() |
The 14 Day Route Counterclockwise... |
Pre Trip and Preboard - Thursday, 24 September - Toronto to Nanaimo
Today I travelled from Toronto to Nanaimo by air - an uneventful trip that I seem to have done now many times.
The limo driver in Nanaimo knew that NYC had moved and drove me down to the front of the laundry building. There I met with Ian, Shari, Lorraine and Paul - it seemed as if everyone knew me without the prolonged absence that had been the case since last fall. I had to sign some papers for Lorraine and made the final payment to the course.
Ian then outlined the program for the rest of the day - receive and store all the provisions, checkout and inspection of the boat and high level briefing of what was in store for the next 2 weeks.
Day 1 - Friday, 25 September 2015 - Nanaimo to Tribune Bay (Hornby Island) - 40.0 nm
After a morning of further preparations, crew member introductions and briefings, we gathered in front of the office computer to review weather models and forecasts for the purpose of determining the route to take around Vancouver Island - either clockwise or counterclockwise. It was a toss of the dice decision as the decision was not to be an obvious one. The goal was to ensure a following wind along the west side which at this time of the year is usually the prevailing condition - a northwest wind. To make a call as to what would be in the forecast a week ahead is always an inaccurate scenario. Given that going north (counterclockwise route) represented new territory for most - this appeared to be the direction of choice.
The crew of Belle Serena would consist of Tracy and Tyler from Victoria, Andy from Calgary and Ian our instructor from NYC. Hartaro with Paul as instructor would be our buddy vessel for the trip.
Hoisting the dinghy onto the foredeck and checking that we had all required charts - all was ready to go.
Departure came about shortly after noon with the evening targeted destination to be Tribune Bay on the south side of Hornby Island. I was delighted to finally be able to go there by sailboat given the many times that I had been there on family vacations up on the bluff.
Tracy at the Helm |
We arrived and dropped anchor about 7:30pm after checking depth and tidal range for the night, prepared dinner, had a beer and wound down the evening for an early sack time.
Day 2 - Saturday, 26 September 2015 - Tribune Bay to Campbell River - 64.0 nm
With an early wakeup and breakfast we managed an 8:00am departure. Given the northwest wind in the forecast down the Strait of Georgia we decided to head out Southeast via St. John Point and Flora Islet before turning northwards. Winds were fresh once around the corner and we had a great sail beating northwards. We made fairly good progress to our planned destination of Campbell River but early in the afternoon we dropped the sails and motored the rest of the way to Campbell River to ensure an arrival in daylight.
The early day's sail was well received by all as we were tacking across nearly the full width of the Strait between Texada and Denman Islands. With more freshening of the wind we had put in the first reef for better flatness. I was on HELM duty that day and asked for a second reef because of the increased weather helm - but the crew wouldn't obey! More on that later.
Looking Back on Hornby and Denman Islands |
We started our Celestial Navigation work today and the lesson gained for me was that one didn't need to have a shoreless horizon to get a sight - a few miles off shore and no significant breaks in the shoreline was all that was needed - thanks Ian!
A Quick Review of Sextant Details |
Approach to Campbell River |
A terrific dinner and beer were had at the local pub before an early bed time as we had already decided to get up super early the next day so that we could catch the beginning of the ebb through Seymour Narrows. We felt that getting the early part of the ebb would give us a nice ride through and into Johnstone Strait.
Day 3 - Sunday, 27 September 2015 - Campbell River to Burial Cove - 64.1 nm
We got up at 4:30 am, had a quick breakfast (I was on GALLEY duty today) and quickly got underway towards Seymour Narrows. The ebb was starting to build and once inside the narrows saw the whirlpools starting to form. Before we knew it Tracy was having fun helming us through a few twists and turns with our boat SOG being seen to be 16 Knots!!! Yeehaah!
When you are on GALLEY duty - you have first rights on music - so it was a good day to indoctrinate the crew with my favourite music choice, namely Mark Knopfler.
A Calm Day on Johnstone Strait |
Hartaro Up Ahead... |
Another day of taking sights when we had a good distance from shore and another new lesson for taking sights - you don't need to have a cloudless sky to be able to get a sun sight - if the sun is visible within the clouds, you can get a sun sight. Once again, thank you Ian!
It was a small cove, we had a plotting lesson in the cockpit, and once Hartaro arrived had them raft up to us given that Belle Serena had fairly solid ground tackle.
Day 4 - Monday, 28 September 2015 - Burial Cove to Port Hardy - 56.2 nm
I was on NAV duty today - plotted out a fairly easy run up Johnstone Strait after leaving Burial Cove via Havannah Channel and after getting past Malcolm Island had our first open view of Queen Charlotte Strait and the Pacific Ocean beyond.
The wildlife sighting of the day, near Malcolm Island, was a small pod of Dall's Porpoises that decided to have some fun and swam with us crisscrossing our bow for about 10 minutes. Ian caught it all while standing up at the bow.
Rafted Up with Hartaro at Burial Cove |
We arrived in Port Hardy around 5:40pm - took the opportunity to get some provisions (including beer and wine), got some milk that should have been good until the end of October but ended up being bad when we had some a couple of days later.
Day 5 - Tuesday, 29 September 2015 - Port Hardy to Winter Cove - 80.8 nm
One of the many tasks to manage on a boat are engine hours. Ian like to refuel every 30 hours even though the tank holds much more. This is to keep one from getting to the bottom of the tank and stirring up the sludge that may have settled. So on departure we all refueled at the fuel dock.
Port Hardy in the Morning Fog |
Heading Up Goletas Channel with Hartaro |
As we approached the bar, one could see the Pacific swell coming in, building up over the bar as the bottom depth decreased. It was quite visible from a distance and I felt that this could be very interesting as the crossing approached.
Well - it did get bumpy and we definitely knew when we were over the bar. There was no preferred course to take as the mounding swell was everywhere. The bumps and thrashing increased and in about 30 minutes as the bottom depth increased, it was over.
As came about a number of times - the security of relying on electronic navigation was not guaranteed of correctness - the same could be said now of paper charts. To our chagrin a 1.2 metre cover on the bar was NOT shown on the paper chart but was clearly visible on the Navionics digital chart. Which was right?
After a bit we were soon to be approaching another infamous navigation mark - namely Cape Scott and Scott Channel. Night was falling on us and we had already implemented our watch system that would take us through the night and our planned Winter Harbour destination sometime mid morning.
It was a clear night and after rounding Cape Scott had a great view of the moon and stars. It would end being the best night available to get moon and star sights. As the night progressed and a land breeze developed, we had a great downwind sail - most of it being wing on wing - that everyone thoroughly enjoyed. One of Ian's many mantra's was that if the sailing ever gets below 3 Kts., we would turn on the iron spinnaker.
As is the case with land breezes, it changed direction and then diminished to barely anything as we continued down the coast to Quatsino Sound. The entry into Quatsino Sound was well laid out by our NAV team but was nonetheless an interesting experience. There were few opportunities for 2 way fixes and most of the turns were made with a 1 way fix on Kains Island Light while backed up with a GPS fix. The final legs up Forward Inlet and Winter Harbour were made entirely by the Navionics navigation package as there was absolutely nothing that one could take a fix on due to the darkness. Even Ian on his complete reliance on paper charts and fixes as his principal vehicle for navigating had to rely on the electronics.
At 3:00am we finally arrived at the Public Dock and after snugging down quickly turned into our beds. It had been a long and tiring day.
Day 6 - Wednesday, 30 September 2015 - Winter Cove
It was deemed that today would be a day of rest with a stayover in Winter Harbour given that we had made good progress over the last few days. Today would also be Day 1 of Paul's Weather lecture series.
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Boardwalk in Winter Harbour |
While everyone went via Hartaro to tour the Kains Island Lighthouse, I elected to catch up on some Celestial Navigation reading and a walk around the very sleepy and not too much happening village of Winter Harbour. There is a local store here but its hours was only 2:00 to 6:00pm with all of its provisions coming from Port Hardy some 2 hours away by road.
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Belle Serena on the Government Dock |
After the weather lecture, plans were made to make for Queen Cove the next day which would also entail rounding Brooks Peninsula and a night time arrival.
Day 7 - Thursday, 1 October 2015 - Winter Cove to Queen Cove - 74.0 nm
I was on GALLEY duty but had lots of help from Tracy. We left Winter Harbour at a comfortable 9:30 am. Sailing was again downwind and wing on wing. We had rigged a gybe preventer to keep the headsail filled as we were sailing by the lee with the main. Later in the day we had a brief sail with the cruising chute up to give us a double upfront.
Leaving Kains Island Lighthouse Behind |
Tracy, Tyler and Ian Looking Ahead to Brooks Peninsula |
Brooks Peninsula with Solander Island |
Below Brooks Peninsula with Kyuquot Sound Beyond |
As we approached Gillam Channel in the dark - the helm work became a challenge as the swell moved the boat around a lot and it was hard to keep the boat moving straight with the long intervals between light flashes. The lights were constantly moving from left to right as the boat was being oversteered and corrected.
The Navionics package did not show the light on Double Island - which was our principal navigation light on entering Gillam Channel. Once past the light, it was once again total reliance on GPS as there was nothing visible the rest of the way in to Queen Cove.
Finally arriving at 10:30pm, we anchored and watched as Hartaro came in slowly through the dark and fog. With the help of our searchlight they made their way in and rafted up to Belle Serena.
Day 8 - Friday, 2 October 2015 - Queen Cove to Bodega Cove - 24.7 nm
After arriving in the night before through light fog, it was amazing to see where we had ended up in the bright sunshine of the morning. Of course nothing looked the same - what appeared to be perilously close the night before was expansive and what was the concern in the light of day.
Queen Cove in the Morning |
Hartaro Preparing to Leave |
Esperanza Inlet |
Our destination for the night was a small anchorage in Bodega Cove. We had to navigate a narrow pass through Princesca Channel to get there. The cove was pristine in its natural beauty. A great spot to park for the night.
Day 9 - Saturday, 3 October 2015 - Bodega Cove to Hot Springs Cove - 38.8 nm
Got up to a sparkling, clear blue sky day for my HELMing duties to Hot Springs Cove destination. The air was cool and crisp and every moment spotted in the sunshine helped to get things warmed up. It was an uneventful passage southwards past Critter Cove and Friendly Cove until out past Estevan Light. As the sea bottom shallowed out a bit the swells increased. The inshore scenery was rugged and fantastic. Not a lot of inhabitation out here.
Nootka Lighthouse |
There wasn't enough wind to get the sails up today so we continued southwards by motor until Hot Springs Cove where we tied up to the Park dock fro the night.
After our Diesel Engine lecture from Ian and a verbal altercation from an incoming float plane pilot - we headed ashore for a beautiful hike through the forest along a well maintained boardwalk to the Hot Springs.
On The Boardwalk to the Hot Springs |
Looking Out from the Hot Springs |
Day 10 - Sunday, 4 October 2015 - Hot Springs Cove to Ucluelet - 45.3 nm
At first it was thought to get to Bamfield for tonight but on consideration due to a better Grocery Store scenario in Ucluelet - this would be our destination. We got a bit of downwind sailing in but it was quite light and the sails were not up that long.
With clear skies and the Reuben Lasker still offshore on our beam - we did get in a few more sights along the way. For me this leg represented an offshore glimpse onto the Etowista Peninsula of Tofino, Chesterman Beach and Long Beach - all places that we have visited on various occasions landside over the years.
A splendid drive down the coast it was.
Lone Cone on Meares Island |
After shopping we settled down to review our ISPA Yachtmaster Workbooks to confirm our answers that had been completed previously.
Fishing Vessels at Ucluelet |
Day 11 - Monday, 5 October 2015 - Ucluelet to Grappler Inlet (Bamfield) - 22.5 nm
We were deemed to be a bit ahead of schedule and could afford to take a detour through the Broken Islands Group - an archipelago of sorts with clusters of islands dotted throughout Barkley Sound. I remember passing through on an overcast day in 1995 on board the MV Lady Rose enroute from Bamfield to Port Alberni. The ship was picking up and dropping off kayakers at various locations. It was certainly a sleepy, island time excursion.
Other than avoiding a shallow rock, my NAV duties went off without issues. There was a plan afoot to have some of Tyler's CG training folks meet up with us. It was a lot less of a surprise as Ian had a different destination in mind due to anchorage issues so the plot was sprung.
Mid afternoon after a casual lunch in the cockpit - we headed towards Bamfield as our destination for the night. It ended up that we anchored in Grappler Inlet instead, which was just around the corner from the entrance into Bamfield.
Grappler Inlet Anchorage |
Day 12 - Tuesday, 6 October 2015 - Grappler Inlet to Victoria - 97.9 nm
The weather forecast had predicted a 20 Knot Southwest wind for the day and that is what we headed into once around Cape Beale. After a few tacks and with little progress made on a day where our goal was 100 nm - we dropped the sails and ended up motoring most of the way. Other than some downwind sailing later in the night, it was an easy jaunt down the coast towards Victoria.
The best part of the passage was again being able to see parts of the coast that Margot and I had hiked on the Westcoast Trail back in 1995. Places like Pachena Light, Nitinat Narrows (where there was a well populated by fish boats in full swing), Carmanah Light and Port San Juan.
Night sailing is a lot fun, the navigation needs to be precise and a bit of reliance on GPS as back up is usually the way things are.
As HELM duty for the day I took us in to Victoria Harbour for a 12 midnight arrival. This was Tracy and Tyler's home port so the piloting into the harbour was expertly done. Docking was fine expect instead of a burst of reverse on completion, I decided to use a burst of forward instead. Fortunately I was quick to correct my mistake without causing any grief to the docking line team. It had been a long day afterall.
Day 13 - Wednesday, 7 October 2015 - Victoria to Winter Cove - 39.5 nm
Today was the first day of rain experienced on the entire trip so far. Can't say that it diminished any part of the trip at all - it was quite pleasant actually. The task for the morning was to get to Government Street for some shopping - to get some goodies for the folks back home. Stop #1 would be Rogers Chocolates as I knew this would be well received by the ladies. I sent Margot a photo of the store being closed as a spoof - it was not well received - that I was unable to get anything.
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On Shopping Duty in Victoria |
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Belle Serena on the Far Outside Dock |
Leaving Victoria Harbour in the Rain |
S/V Pacific Grace Underway from Winter Cove |
On arrival and parked in the cove was the training vessel S/V Pacific Grace - a beautiful remake of an older sailing ship.
A quiet night at anchor - Hartaro was rumoured to have gone to Ganges.
Day 14 - Thursday, 8 October 2015 - Winter Cove to Nanaimo - 44.1 nm
I was on NAV duty passing through one of my favourite parts of the world - the Southern Gulf Islands. Our first destination was Montague Harbour to practice picking up some mooring buoys in the park. Along the way we were radioed by the BC Ferry M/V Mayne Queen that there were some Orca in Satellite Channel and low and behold just west of Active Pass we encountered about 15 Orca casually swimming along Eastwards into the pass.
It was magical - again - to see them in their natural habitat. What was even more amazing was they we had them all to ourselves - not a whale watching boat in sight on this misty morning.
Boat Passage in the Rain and Mist |
Dock at Pirate's Cove |
We made good time and got to Dodd Narrows while the last of the ebb was coming through - it was about 2 Knots - and we continued on without any fuss. It was well dark in Northumberland and other than being challenged by a Tug and barge tow of sawdust, we made a late night docking in Nanaimo again - 2 weeks after having left initially.
Post Completion - Friday, 9 October 2015 - Nanaimo
Not in any hurry to get moving today after our late arrival the evening before. There was nowhere that we were going other than our separate ways as conclusion to the passage.
Breakfast, tidying up and packing were the order of the day. Next came sign-off by Ian on Logbooks. After a few goodbyes it was off to the Buccaneer for a much needed shower, to the mall for dinner and just catching up on things until the flight home next morning.
Ian was thrilled that we had all done a lot of good work on our sights and sight reductions - even to be able to have shot the Moon which has not been done before on any of his previous passages. The signed and sealed Celestial Navigation worksheets for my very tight and accurate fixes of that day...
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Moon Sight Reduction |
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Sun and Noon Sun Sight Reduction |
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and the Plot |
Post Completion 2 - Saturday, 10 October 2015 - Nanaimo to Toronto
Some observations and highlights of the trip...
- - the on boat shots for Celestial Navigation was a terrific experience - including the reductions
- - wing on wing downwind sailing past Cape Scott was great
- - night sail entries to Winter Harbour, Queen Cove, Victoria Harbour and Nanaimo Harbour were truly interesting
- - orca and whales in their natural habitat
- - seeing the amazing west coast from offshore
- - spending 14 days on a sailboat with a great crew
- - Seymour Narrows, Johnstone Strait, Nahwitti Bar, Cape Scott and Brooks Peninsula - what was the fuss all about? Just kidding. We had great weather and had a pretty easy go of it all, and weather forecasts were never correct. Next time may be a completely different story.
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