serene – 1, part 28

Iam in the progress of preparing for my next trips… so some more add – ons for my Serene – 1 kayak is a must. First is a deck mount compass. I’ve been long wanting a good compass with built – in LED lighting, for paddling at night, but that would require some kind of 12 or 24 Volt DC electric input, which my kayak doesn’t have at the moment. So I came up with a simpler compass available within my local market, and would just use a small flashlight to illuminate the compass instead.

Next is building a “cup” to hold the compass, which would then be mounted, recessively, onto the front deck of my kayak. I use a thin strip of oak veneer to build the cup, turn it two rounds around the compass (with Titebond – 2 glue in between), then add the plywood top and bottom parts. The whole thing would be reinforced with some fillet at the jointing edges, then a layer of glass. It requires some handiness to build the “compass cup”, as its size is quite small and my hands are big and clumsy!

I hate having to punch a hole into my kayak, but it need to be done to fit the compass holder in place. That’s quite straightforward the job, cutting a round hole some distance in front of the cockpit, just before the bungee lines, gluing the compass holder with some epoxy, then some little painting outside. Et voila, here it is, the compass in its working position, it looks so great! And as they usually say: May your anchor be tight, your cork be loose, your rum be spiced, and your compass be true!

Serene – 1 p1
Serene – 1 p2
Serene – 1 p3
Serene – 1 p4

It’s not immediately obvious for me to see why this compass dial (the compass rose) is reversed, looking from above, it’s flipped so that the North becomes South, East becomes West. It took me some minutes to understand the rationale behind that “weird” fact.

Cause in most cases, the boat handler would be sitting, looking forward, so the indicated direction facing him is actually the heading (bearing) of the boat’ stern (not the boat’s bow). Flipping the compass rose would give a correct and convenient reading for the sailor.

compasses

Bên trái là cái la bàn cầm tay (handheld compass), chỉ đúng hướng Bắc. Bên phải là cái la bàn gắn trên thuyền (deck mount compass). Cái bên phải chỉ ngược Bắc thành Nam, Nam thành Bắc! Và cả hai chiếc, theo ý mình, đều đúng! Tại sao!?

rohloff

Mơ ước nhỏ nhoi của em… xe đạp sử dụng hộp số Rohloff cùng với truyền động trục (shaft – drive – transmission). Hệ truyền động kín, không lộ bất kỳ phần chuyển động nào ra ngoài, Rohloff speech hub (hộp số 14 cấp Rohloff cho xe đạp), xài bánh răng, cơ chế tương đương, nhưng hoàn toàn khác derailleur (bộ đề). Shaft – drive – transmission: truyền động bằng trục như ôtô, xe tải chứ ko xài chain (xích)

rowing machine – 3

Having some more time this week to finish this very small piece of work: a pulley system for lifting the weights up and down. Then ensemble everything together: the sliding seat, the rotating foot rest (note the pair of sandals tied on it). Initial testing gave satisfactory results, though some adjustments are still needed here and there!

Rowing the machine is quite like riding a bicycle on long distance, it seems light and easy at first, but it gets more and more demanding the longer you row. That’s a perfect machine for exercising many of your body’s muscles. I made a quick video capture with my phone to show how the machine works below (sorry for the poor lighting condition).

vũng tàu sailing, 3

There’s always something new to learn about sailing, and this weekend, we practice the MOB (man over board) situation. Supposed a crew member accidentally falls out of the boat, and we need to come back and rescue him / her under sail as soon as possible. Everyone takes turn taking the skipper role and rehearsing the MOB procedures.

But actually, most fun comes with the smallest type of boat, the Optimist. I had a very good time learning some of my crash courses with it, a tiny, but responsive boat, which gives you the right feeling about how to handle a boat in different wind and water situations. Do it the hard way is the motto I firmly believe to be ultimately true and beneficial!

midlife crisis

Họ, những quý ông quý tộc, hay một người bình dân vô danh. Ra khơi trên những con tàu trị giá 200 đô, hay 200 ngàn đô. Chạy trốn một cuộc khủng hoảng tuổi trung niên, hay đang tìm kiếm những phiêu lưu mới. Tất cả đều chia sẻ chung một niềm đam mê đến ám ảnh với cái không gian tự do rộng lớn ngoài kia…

rowing machine – 2

Have some times this week to continue working on my rowing machine. First is the basket used to contain weights (just some bricks instead of those iron weight plates). It runs on 4 small plastic wheels lying on 2 wooden rails. A system of line and 3 blocks is used to move the weights basket sliding up and down in an near – vertical manner (75 degrees).

It’s only when I first try running the machine that I’ve found out it is making so much noises, the 8 wheels on wooden rails. I decided to change from the slanted design (4th image) to an upright one (5th image). The weights would run up and down by a system of lines and pulleys, rather than running on rails. Proceed slowly as I have little free time for the moment.

vietnam 80s

Một thời chưa phải là xa, VN những năm 80, kéo xuống phía dưới, ảnh số 3 là một số thuyền “junk rigged – buồm cánh dơi” Hạ Long, ảnh số 4 là một số thuyền “lug rigged – buồm tứ giác lệch” ở Nam Định. Thuyền buồm không phải là điều gì xa lạ, nhất là vào cái thời đói kém đó, máy móc, xăng dầu vẫn là những thứ rất khan hiếm…

vũng tàu sailing, 2

This weekend, we lower the trimaran’s mast to add a new tang, riveted down near the mast head for the spinnaker (replacing the weak pad – eye that has been blown away by strong wind last week), make some other minor fixes before raising the mast again. We also installed a new spinnaker retrieval line and chute. The work continues pass noon.

Then after a small lunch, we head out to the sea. There’re only some very light winds today, the sea is quite calm, but that’s also a chance to fly and test all sails. The whole thing works perfectly, hoisting and retrieving the spinnaker are quite smooth, together with main sail and jib, enabled the trimaran to carry 6 men out for a pleasureful gentle promenade!