Airboat tests in wind and waves


Today I tested a boat on a big wave. I went to another lake closer to home. A strong wind rose and I decided to test the stability of the boat to the wave and wind. Initially, there were problems with the engine, he is already a veteran, so I had to conjure a little and eventually it all worked. I’m a small backwater and it seems that the wave is small because that ripple that seems a little further but when I left closer to the middle of the lake I was met thirty centimeter waves. The boat went against the wind and fought with the wave. Against the wind, I accelerated to 25 and then the wave started to turn around and met me aboard, but the boat was surprisingly well able to hold the blows, it jumped from wave to wave and didn’t even splash too much. In the opposite direction I gave full gas. Forty-one scored instantly, but the shaking was unrealistic. To be honest, on such a rodeo the gas did not turn off too much and shook and shaken. Nevertheless, the boat was controlled and there were no prerequisites for capsizing. This was my second time on this boat, and under such conditions the water surface I felt completely safe, but I worked with gas cautiously and I only had full gas accelerated against the wind and, having gained some speed, I already cleaned the gas. Unfortunately, it was not possible to remove a lot from the cabin because of the shaking. Only my friend Karlis took me off his phone and for about a minute, the video will be from this test. Thank you very much to Karlis for help in these trials. Yes, and more from the shaking or old age exhaust pipe to the muffler broke. He was alert before and could not stand the vibration. In general, it broke down and the tests ended there. Need to order a new part. In general, I am satisfied with the tests. The boat keeps the shock wave well controlled and accelerates the wave. The motor is a bit weak in still weather, still ok against the wind. I think for the following tests to make a small fairing in front and remove the protection of the screw, it brakes the boat a little. You can try to measure the full speed with these changes. In the meantime, I will do something else until the item arrives. below the photo and a short video.

p.s. The most amazing thing is that during the test I forgot to put a small oar in the cockpit of my boat and put it on the deck where it was safely and rolled during all my jumps and shakes, and did not fall. I safely used it after raking up to the shore.

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First airboat tests


Yesterday, on the 12th of May, I tested my airboat. For the first time it happened in my life that not one fear was not confirmed, but all hopes were fulfilled. The boat turned out to be very stable, very maneuverable, very fast, considering that it has a 10 kW motor. His thrust is about 45 kg, which means that all my work was not in vain and the cross-flow on the boat’s hull does its work – reduces the wet space of the bottom of the boat, this leads to the fact that the boat is already on the floor of the gas going to the hydroplane. Unfortunately, my GPS broke down and I could not find out the speed. According to my feelings and the feelings of my friend who has a lot of experience walking on motorboats, my airboat is about 40-50 km per hour. On the water is a lot. I didn’t even expect such a result, but to be honest at some points I personally felt that speed was over 50 km per hour. And this is the smallest paramotor engine that is. I can imagine what will happen if you put the motor on the boat at least 20 HP. The speed will increase significantly. Of course there may be various problems with increasing speed, but at the moment the boat behaves well with this motor. I also did not weigh the boat, I think it weighs around 40 kg. This is a bit much. But I deliberately over-tightened it trying to make it very durable. Therefore, the next boat can be made a little easier, because now I know where you can remove the excess. In general, I am very pleased and eager to take the boat to any river. Now need to wait until the summer weather settles and you can continue to test the boat. As always below, I attach photos with the latest events and attach the video I took on the phone and quickly assembled it. I think in the future to approach the process of filming more responsibly and get an Action Camera. And I also wanted to say a big thank you to my old friend Oscar, who sheltered my boat on his territory in his spacious garage and helped me with the water tests! For this, I am very grateful to him without his help, I would have had difficulty.

And here is the video

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Everything is ready for water testing


I made all possible preparations and checks except one, for stability on the water and leakage of the bottom, but I think to do it at the same time when the first swim will be. Because it is problematic to float twice. We’ll have to do everything in one race.

I also pasted the boat with stickers that gave it a racing look. Black number 39 on the nose on a red background and on the tail on both sides as well. More on the sides of the side of the inscription EXPERIMENTAL in case of questions any power of the gentlemen, as well as a sticker with the name of my site in front and behind. Now everything looks very beautiful. I also pulled the boat outside and checked the engine and steering system. It seems everything works and the engine mount frame to the boat keeps everything well. The boat looks like I imagined it, it is neatly made of plywood and has a racing look like a glider from the 50-60s. Its nice to touch, good to see. This is a work of art. Everything, from the scale, the hydrodynamic form of the bottom and the appearance, was invented and implemented by me in about three months. On weekends and evenings. Let’s see how it floats, maybe as good as it looks. I hope. Tests prescribed for the first half of May. Since there is a lot of work and I can’t take a break from my wonderful Hobby. I really look forward to this moment and I hope everything will turn out. Below as always a photo report on the work done.

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End of construction


Ive finished the boat. Of course, hurried in the end. I did a lot of things rather carelessly, but in general I did everything very well. The only control lever is a little damp. It is necessary to bring the motor under the hood and check how the tail works, if satisfactory, then everything is ok. if not, then you have to think of something else. I would like to stick some stickers. With the number and a couple of words and everything on the water. In early May, I will do a test. Since May, in general, in our regions, it is possible to go out into the water, and then I will begin the tests. There are some questions where to do it but a couple of places already outlined. One thing is close, but with onlookers that unnerve the other far, but expensive to transport. May have to fork out and calmly test. I would also like to normally remove everything to mount a normal video. For this you need GoPro, it will also need to buy. On the phone you do not take much. Buy a life jacket, get a camera and find some time. In short, in May there will be trials. Below as I usually attach photos of the boat.

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Pasting and painting


Today we can already say – the finish line loomed ahead. The hull of the boat is covered with fiberglass and painted. My colleague Tom helped me a lot in this. Since I am allergic to epoxy materials and solvents, I had to ask for help from a colleague. Many thanks to him for helping me. Everything turned out well, for an experimental model, even good. After the epoxy had dried, I polished the bottom and we started painting. It was decided that the bottom will be painted in white and the top is covered with clear varnish. It turned out well and neatly. I think to stick a few more stickers with the site address number and the inscription “Experimental” next week. I think already tailor the tail to make the control stick and make a general setup of all the nodes so that everything works like a clock. And the water. I received the rights to drive pleasure boats, I just need to buy a vest and an action camera. Otherwise, you have to beg all the time and end up on the phone. But this time I want to make a better video. I also hope that the boat will pass all 4 stages of testing. The first of which, tightness of all seams. The second is stability with a pilot and a motor. The third is the exit to the glider with two thirds of the gas, and finally, the fourth is control-ability, it must be satisfactory. The water can be from May 1, I expect to finish with all the settings by this time. Photos of the work done as always below.

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