hello world – 3, part 22

aving made some more thorough testing, I’m now feeling very pleased with the new boat and its build quality. After several 20 ~ 25 km paddling trips, I think I can average out at 7 kmph for extended time (5, 6 hours) and probably longer with more endurance exercising. That’s still not up to my expectation yet, but about speed, on the internet, you can hardly find trustable reporting on kayak and its paddler’s abilities, some boating information is purely… bloating!

At some points, due to the lack of correct information, I did have some illusions on paddling speed. But now I definitely know that a typical good sea kayak has the average, sustainable speed in the 7 ~ 7.5 kmph range. Beyond that would be the domain of racing kayak or surfski, which could step into the 8 ~ 9 kmph range, the best of which could not reach too far beyond 9 kmph. And that probably would be the target of my next build, though currently I have no plan for it yet.

Unlike HW – 2, I feel very comfortable to paddle HW – 3 into the wind. The hull pierces waves nicely, and I think the boat would surf well also. Haven’t had the chance to trial the kayak in big standing waves, but in some lesser situations, I’d noticed that the boat rides waves in style, with very little drifting, shaking. That’s a characteristic very much needed when I would leave the relatively – calm rivers to go into the much more choppy areas of coastal sea and large estuaries.

It’s approaching year end and I’ve got lots of other stuffs to do, so there won’t be any big updates to the kayak until next year. It’s a real pleasure when on rivers, people was asking where I bought the boat from, and when I told them that I built it myself, none believes it 😀! This season, day temperature is dropping below 25°C (that’s already called “cool” for a tropical Saigon), good for going paddling indeed. Some video shots to show the boat, captured with my GoPro mounted at bow.

vũng tàu, june 2014

his has been in my TODO list for quite some time, but for various reasons, couldn’t get it done till now. To the present day, I’ve accumulated more than 1,000 nmi under my belt with Hello World – 1 & 2 (nearly 1,900 km, as logged by my Garmin), but that’s only the 20 ~ 25 km paddling around my home. I need something longer to testify my endurance; and for the last 2 months, I’ve been preparing for this 60 km paddling trip to Vũng Tàu: physical exercising, equipments, plan A, plan B, etc… It just comes the time to… get your paddles wet!

My Hello World – 2 kayak is a true player on rivers, but it’s surely no performer at sea. A 14 footer, it’s quite unsuitable to be deployed on longer journeys, so I need to make careful planning. The trip will be completed in 3 legs, approximately 20 km each, the first 2 will follow Sài Gòn and Lòng Tàu rivers, the last leg would pass Gành Rái bay to reach Vũng Tàu on ‘open sea’. And indeed, I have no ‘plan B’, no camping gears, no food and drink for a 2nd day of paddling, no signaling devices… it just has to be done, 60 km in a single day, in a single try!

Leg 1

Wake up at 3:30 AM, I carefully check the gears, load the kayak, have a big breakfast, and at 4:30 AM, I depart. Right at the first paddling stroke, it begins to rain, cats and dogs! And it continues to rain lightly for the next several hours, but that’s good really. Silently pass by many fishing boats, some was sleeping, some was watching a FIFA World Cup’s live football match! Heavily loaded, I make my way through the misty, dark water with a pace around 6 ~ 6.5 km/h. At 5:30 AM, the Garmin indicates a minor rise in speed, ~ 7.5 km/h, it’s the tide’s coming into play!

6:00 AM, as the dawn was breaking, I steadily made 8 ~ 9 km/h, 6:45 AM, I was making a comfortable 9.5 ~ 10.5 km/h riding. The tide plays quite a role in my planning, it should help to conquer the first 2 legs as fast as I can, reserving stamina for the last troublesome leap. Velocity then increases to 11 km/h for a short while, momentarily reaches 12 km/h, woohoo… I finished the 1st leg in 3 hours with little resting time, reaching Tam Thôn Hiệp crossroad, the southern most outskirt of Sài Gòn, beyond this point is Cần Giờ mangrove biosphere reserve.

Leg 2

8:00 AM, after a short break, I start the 2nd leg, which traverses the Cần Giờ mangrove forest to reach the sea. The Garmin instructs me confidently through this complex maze of rivers and canals, making ‘bip – bip’ sound in approximation of each turn point (the planned route was made on computer and transferred to the device). I’m a bit in hurry as I know I don’t have a large time frame to utilize the tide, in all, less than 4, 5 hours or so. 8:30 AM, the tide will finish lowering in Vũng Tàu area, though for inland water, there’s still a delay effect.

Speed drops gradually along this 2nd leg, and at 10:00 AM, I was returning to 6 ~ 6.5 km/h, as the tide was coming to a complete stop. The last few kilometers of this leg was a bit difficult, cause although my arms and shoulders showed little sign of tiredness, my butt was in great pains after hours of idleness. Then it was a moment of thrill, to stand here and watch over the large calm estuary where the river joins the sea! Another leg done, an hour of resting, lying leisurely in the boat, watching the sea, having lunch, and making some selfies! 😀

Leg 3

Right at noon, I start the final leap. I was having a good day, it’s heavily cloudy, the sea is quite calm, small waves, south – west light wind at 2, 3 on Beaufort scale coming to my convenience from starboard ‘broad reach’ or ‘beam reach’, Vũng Tàu‘s mountains are clearly visible across the big bay. I decided to start as soon as I can, fearing the regular afternoon tropical gales and rains could bring much trouble later on. Switch the Garmin to compass mode, keep the bearing at 125 degrees for several hours, this gonna be just a piece of cake! 😀

The following hours turned out to be not easy indeed! I begin to feel pains for my hands, the waves have hampered my efforts and reduced speed into the 4.5 ~ 5.5 km/h range. I have not a single moment of worry, but rather a kind of tranquility in my mind while navigating this immense sphere. I stop for a while having an nice talk with a local fisherman, then keeping on the straight line to target. On starboard side then seen the Cần Giờ Aval lighthouse (Vietnamese: hải đăng Bóng Trắng). Then at 4:30 PM, landed in Vũng Tàu at the precise pre – planned spot.

Return

Terra firma eventually, my 12 hours of paddling completed with flying colors! 😀 Nothing more to expect for the day, I go for dinner, then back to the hotel and have another 12 hours of sleep! Next morning, I was messing around the harbors, watching the fishing boats, then at noon, load my kayak onto a rented truck and return to Sài Gòn. My arms are still having some little pain as I’m typing this, but the feeling is really pleasant. It could be a small thing to others, but a little real achievement for me! Another milestone in my boating progress!

The trip helps rectifying some defects and shortcomings on boat building and boating equipments. It’s only in these longer trips that I would find out what gears, food, drink, clothing, etc… should I have, what improves and accessories I could do for my boats. Yet Hello World – 2, at 14 feet, still belongs to the recreational class, it’s not a real expeditional sea kayak by design… The trip also helps consolidating my understanding and experiences on what I should prepare to make successful future sea crossings and longer passages into mare liberum 😀.

Epilogue

The Sài GònVũng Tàu route is crowded in maritime traffic, big boats from a few thousand to a few dozen thousand tons come and go every few minutes. It’s a real risk that your tiny boat could be overseen and overrun by those giants, as I was ‘near – missed’ by a huge freighter at great speed by just 50 ~ 70 m in one case. I should have an VHF radio to communicate with them to avoid collision. The waves created by those boats, though could be as high as 1 ~ 1.5 m, are not dangerous actually, as they are well patterned and well behaved.

Routes plotted with Google Earth: planned route in blue, actual route in red. Some GPS logged data: distance travelled: 58.4 km, total time: 11:31′, paddling time ~ 9:00′, resting time ~ 2:30′, I averaged out only 5.08 km/h over all. Obviously, there’s still lots of things to be improved here!

Another aspect of paddling in tropical weather: the ‘thermal efficiency’ of your body (like any other machines or engines) would degrade badly in the 30 ~ 38°C temperature range, you’ll need lots of water (and food) to keep up the pace, a sunny day could easily use up 3, 4 litters just for drinking (not to include cooking). That could cause a ‘logistical problem’ as a kayak has limited storage capacity, it could be a headache to prepare food and drink rations (among other things) for a 4, 5 days trip, the heavier the load, the slower the boat of course.

Some video scenes of the trip captured with my GoPro camera.

Vũng Tàu is no stranger to me, having visited it many times before. But this time is different, a chance to view the city from another perspective. For many moments, I thought I had quite some illusions of grandeur, the literal, optical meaning 😀, as the sceneries appear as in tilt – shift photography: people, houses, cars, boats, the trees… all appears to be so small under the blue sky, even the mountains do not look really big… A fantastic feeling when you observe the little city of Cap Saint Jacques from the back of waves, some distances off from shore.

a bit of roughness

typical small tropical gale during this rainy season… winds can momentarily reach up to level 5, 6 or more on Beaufort scale. It can get pretty rough at time right here on Saigon river and without a spray skirt, the kayak takes on water easily in this weather, when filled up about 1/3 of the volume, the boat is heavy to paddle, it becomes less responsive and easier to take more water in. I need to pump the water out several times during my routine 20km paddling trip.

But it’s also fun, the rougher it get, the tougher you need to be! 😀

saigon river

t is not always as calm as in the video below, this time of the year, the monsoon is reversing, causing lots of turbulences. Sometimes waves are so big that I can hardly have anytime for playing around with my GoPro camera, one reckless moment could cause my little kayak to be flooded, or worse, capsized. But many of the times, there’s enough wind and wave to let Hello World – 2 going dancing, drifting and surfing 😀. My 20km routine paddling path, passing by Phú Xuân bridge, Nhà Bè fuel reservoirs, Bình Khánh ferry, Hải Minh shipyard… where I can see the CSB – 9001 (a Vietnam maritime police’s search and rescue boat) mooring, next to it are some small Navy (HQ – xxx) gunboats.

In the wet docks are two Navy minesweepers: HQ – 863, HQ – 864 being refitted, I passed by closed enough to see their towed array sonars and their wooden planks (minesweepers are rarely constructed in ferromagnetic materials, often it’s wood or composite). The two hulls: KN – 806, KN – 807 are barely finished with some upper structures, they belong to Kiểm Ngư (Vietnam fisheries resources surveillance) force, whose establishment has just been announced last week. There’re also some other exotic – looking water crafts, which I haven’t been able to identify their designs and roles. No active guard seen for the Navy shipyard, or they don’t even care about my harmless tiny nutshell!

hello world – 1 and 2

ow “operating two boats” 😀, I could have more ways to play and have fun with them. Usually, me and one of my friend, each of us would go on a separate canoe / kayak, then exchange them at the midpoint of a paddling trip. It’s extremely hot out there this season, 35° ~ 39° Celsius, but that’s good for our endurence anyhow.

The handling experiences are different from boat to boat, and obviously, Hello World – 2 is lighter and has much better speed compare to Hello World – 1. It can easily give a handicap of more then 1/3 of the way. But despite of that, it’s good to learn how to handle both boats, in various conditions and situations on water.

Below is a video capturing both 2 boats’ actions on water, each as looked from the other. While Hello World – 2 was taking a gentle promenade, Hello World – 1 had to struggle hard to keep up. Jump to 1’36” on the video timeline to see how the kayak made a fast, short impressive sprint to approximately 7 ~ 8 knots! 😀

hello world – 2, part 3

aunched and trialled the kayak this April fool day! Can’t say how much I’m pleased with it, great speed, just like a dart slicing through water! 😀 It could take some time to learn how to handle this new kayak, the experiences are different between my two boats, but I got the right feeling on how to control it very soon.

The boat gave me a good firm sense that it can be used for longer range. The 2.2 m paddle is too long for this 0.62m – beam kayak, I would need to make a new 1.9 ~ 2.0 m one, but that would be later. I need to try it out thoroughly before deciding what to do to turn it into… an “expeditionary” boat for my up – coming journeys!

Made some longer paddling and realized the boat’s tendency not to track very straight under turbulent flow or wind (in calm conditions, it tracks well), this is tiresome for long voyage. This could be fixed when the kayak is fully loaded, with weight shifts toward the aft, but I decided anyhow to add a retractable skeg to the boat in the coming weeks!

follow me

irst of the three images, could it be called a “Follow me” style!? 😀 So busy lately, but keep paddling an average of 20km every two days, don’t actually have time to raise the target at 25, 30 km yet. February is short, can’t wait until all the rowing stuffs get done!

It’s now “kite – flying season” for the kids, plenty of wind these days on the rivers. And it’s also the “practising – season” for me, lots of windage for my small boat. It can even get quite rough at times, and you’d need to be tough, harder and harder paddling, day by day!

Imagine the 4, 5 feet (or more) waves out there in Vũng Tàu, much more troublesome and fascinating, compared to the 1, 2 feet waves here on the rivers, which couldn’t really give me a sense of motion. For various reasons, boating works have been delayed and delayed again, sigh… 😢

a watery saigon – 1

ade my first “departure” on this first day of the new year 2014, year of the horse; a 20 km paddling roundtrip. I want to see more of that same city, from a different point of view, not that usual view of most of the 20 – years – long living here. There is another completely different Saigon, a Saigon seen from water, as on flat land, for the most part, it’s a messy city. It took me a long time to get accustomed to its main roads, especially in the southern parts, as they usually turn around and around, forming untidy, complex, bizarre networks. But if you see them from the waterways perspective, the topologies immediately become clear and easy. That reminds me the essential geo – ecological things about this southern young, energetic city…

hello world – 1, part 6, accessories

ello World – 1 has been finished, and trials showed it’s an excellent boat for solo paddling, but there’s still much work to be done to make full use of the canoe. Various miscellaneous things: a raincoat to protect the hull from weather at docking, a pole to push the canoe forward in shallow water, also to mount a signal light for occasional night going, an apparent wind indicator (wind vane) to better observe wind condition, a hand pump to drain water out when it rains, an anchor to allow going fishing anywhere on the rivers around my area without having to find a tree or a buoy to attach the canoe to… Most important of all, I want to make a rowing kit: an outrigger with two flotation units to help stabilising the boat, and two long oars.

It could take a couple of weeks to finish everything, since I’ve just started the design, with some undecided considerations still. Slowly I would got each items done, first is the spade – shape anchor, I casted 1.5 kg of lead into the hollow space underneath, to concentrate weight into the tip (the anchor is a bit oversize and overweight for such a small canoe, some wrong calculation, but I would use it anyhow). 2 meters of steel chain, plus about 30 meters of rope will be enough for an anchorage almost anywhere. There’s still lots of works to be done, with possible more and more delay (the holidays, Christmas and New Year are coming). Meanwhile paddling is still my main pastime in a fresh morning, or in a calm sunset, any day in the week 😀.

For the past few days, I really enjoy night paddling: familiar enough with the region to navigate in the dark, northern wind has cool down the nocturnal temperature considerably, and houses, buildings along the rivers’ banks have been decorated with all kind of colourful LED and neon lights for Christmas and New Year holidays, creating picturesque and splendid sceneries. I was paddling among a dark, silent, wide space, only the marvellous lighting and the stars above the sky. Unfortunately, my GoPro camera is not very good at shooting in low – light environment, I would try to post some pictures instead, just to show how beautiful our city is this season, especially in this specific place on Crescent lake near Starlight bridge (hồ Bán Nguyệt & cầu Ánh Sao).

The more paddling I was practising, the more do I realise how much boating (and paddling, rowing, sailing, etc…) resembles life, it’s a microcosm, a metaphor for our lives, for the struggles and enjoyments we make. Any destination is just a temporary target, as life is a long journey on which we struggle to make the next leap, reaching the next milestone, while trying to enjoy the scenes on the way. And that’s why we should take our thinking, our words, our intentions, our jobs… seriously, just to make the journey a more lovely, pleasant promenade… Well, that’s enough of philosophy, 😀 I need to stop dreaming here and return to the actual works, refine my calculations, sharpen my skills… lots of things to be done in the up – coming year, year of the horse.

hello world – 1, part 5

was choosing a good day, and also waiting for the tide (it’s just after full moon and the water is low still), time seemed to be so long. Finally, christened, trialled the boat, and started its maiden voyage, all in this same day! 😀 First impressions: the boat is very agile, good speed, better than the plastic boats I used. It’s a real pleasure once you ride into, and the boat gets momentum after just a few paddling strokes, the feeling was light and firm. It tracks very straight, perhaps even too straight. On the minus sides: the canoe’s fat hull makes the turning angle a bit wide (it’s a bit difficult to turn quickly), and it’s somewhat shaky at times, probably because the seats are too high, maybe I should cut the seats’ legs down a bit to lower the center of gravity (or maybe not).

Some photos for now, would post in – action videos once I finish trialling the boat more thoroughly on longer distances… The last several days, I’ve finished two additional testings: one 10km run and another 15km run. Overall, I’m very pleased with the canoe’s performance. The sustained speed is improved by a small margin, from 5 km/h to nearly 6 km/h, but the paddling effort seems to be much less, I don’t feel that tired like with those plastic boats. The windage is good, given that the boat tends to keep straight very well, once it gets momentum, it doesn’t drift much under unfavourable wind. The rolling motion can be unpleasant for novice paddlers, but I’m ok with that still, actually I prefer to have some little shaking, after all, it’s not solid flat land, it’s bobbing water!

Some very beautiful scenes captured when trialling my new canoe. It rains sometimes, but the sky was clear was bright. Waterways in this region have lots of traffic, high buildings along the riverside, many activities afloat, most people I met was opened and friendly. And everyone was asking from where I bought such a nice and handy boat! 😀 And many ones who patiently spends hours along the banks for casual fishing look at me with envious eyes 😀! It is pure pleasure to enjoy the river in many of its status: tranquil, wavy, windy, sunny, rainy… all within one same day, and it is even more pleasant to enjoy all those things in a built – by – your – own – hands boat! Well… every journey begins with a single step… consider this first step successfully done! 😀

Today, I tested the canoe in tandem configuration, and I must admit, it’s a failure! The only point that I’m pleased with is that the boat is still very light and agile with two paddling hands, it’s very quick to get momentum, velocity is very good, and there’s less effort needed to propel the boat to optimal cruising speed. Things to be improved in tandem configuration: 1. distance between two seats is too tight, the paddles can collide if two hands are not paddling in sync; 2. the canoe rolls a lot, to the point of instability, the only cause is that seats are mounted too high. It’s a dilemma, I don’t really want to lower the seats, they make comfortable positions and reduce paddling effort. I’m considering possible fixes to this problem and would update the canoe in the upcoming weeks.