My new boat Streamlined beauty

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After building several classic square-shaped airboats, I decided to make the boat more streamlined and pointed. I understand why classic airboats have such unpretentious shape, it’s all about practicality, but I am an impractical person, I am an artist by nature, and since I idolize the design of the era between the two world wars of 1920-30, I chose the form characteristic of that era. I was inspired by such beautiful boats as Bootleggerboat and Miss Canada 4, so I decided to cross the streamlined boat hull and the propeller engine. Since I am constrained in the possibilities, I managed with what I have, that is, a low-power 21 horsepower engine, and picked up a small streamlined body for it. I chose a drawing of a boat made by William Jackson, the famous American designer who designed a boat called Dragonfly. A small teardrop seaplane for one pilot and an outboard engine. I redesigned the entire rear end by adding another frame and changing the transom to accommodate the propeller-driven paramotor engine. I made the hull of plywood pasted over with one layer of fiberglass, and I sheathed the boat deck with pine plywood and varnished it. The boat has two seats, one behind the other. Steering is carried out using a steering wheel connected to an aluminum tail, designed in the same style as the body. The boat turns out beautiful and impetuous, I like its appearance and I hope you too.

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The second stage of boat building

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Well, the new year is approaching and I am already at the final stretch. Over the past month, there has been little work and using idle time at work and weekends I managed to sheathe the boat with plywood. With a triple made of pine, I sheathed the top and sheathed the bottom and sides with a six millimeter birch. I polished everything and covered it with fiberglass. My friend Roland helped me with this. I also chose a color for the bottom and sides – it will be ruby red. I’ll cover the deck with clear varnish. I painted the bottom in three layers, now it remains to turn the boat over and finally process the deck and cover the bottom of the boat with varnish, after which you can start assembling the engine and tail, which I also made in parallel from aluminum. I think not to paint the tail, leave it aluminum and just draw the number 41. In general, if everything goes well and no excesses happen, I can finish all the processing of the boat and the installation of the engine by the middle of next month, after which I will only have to wait for spring. I would like to finish this boat as soon as I want to do the alteration of the ekranoplan. There are plans to redesign the cockpit and front fender. For summer trials. The only truth is if I can get the engine. Photos of the work done below.

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Waiting for a good weather

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The weather is very bad, a cold wind blows all the time and is raining all the time. The middle of May and there is no heat yet. Over the past week I have finished painting another boat and installed the tail. I also pasted a number and a couple of inscriptions on the sides. The boat turned out 2498 mm which is 22 mm smaller than the previous one and now it falls under the law on registration and license. That is, a boat up to 2500 mm long may not have registration and it can be controlled without having rights. In short, that was my goal and I achieved it. It is light blue, the inscriptions and the circle on the nose are white. Number is a black four. Since I give all my cars a number, which means my age at the time of construction, so it happened to me. Therefore, the number 4 in the circle means 40. It looks more interesting and better. As for the airliner with a motor in front, I finished it, tightened the motor and cabin to the hull of the boat and made steering control using a cable. Management will be carried out using an underwater steering wheel, so it seemed to me better and this does not spoil the overall look. Gasoline has already been poured into the tank and now it remains only to wait for the weather and go to the lake. I hope that soon it will turn out good and it will be possible to start the test, after which I intend to immediately go For 250 km from the city to a large lake to experience the ekranoplan. I would very much like to do these two tests in June, and then already remount the engine on a new boat from an ekranoplan and test it with a powerful engine. As usual, a photo of the work done below.IMG-20200516-WA0009 IMG-20200516-WA0008 IMG-20200516-WA0007 IMG-20200516-WA0006 IMG-20200516-WA0018 IMG-20200516-WA0017 IMG-20200516-WA0011 IMG-20200516-WA0012 IMG-20200516-WA0014 IMG-20200516-WA0015 IMG-20200516-WA0016 IMG-20200516-WA0019 IMG-20200516-WA0004 IMG-20200516-WA0005

 

 

Speed measurement

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Well, so I checked the speed of my boat. Yesterday it was quite windy and it affected the speed measurements a little, but I did everything as expected and measured the speed both against the wind and the wind, and also measured the speed with and without propeller protection and also checked one propeller made by my friend Roland from plywood. Again, my friend Karlis was with me on the tests, for which many thanks to him, he helped me a lot. So, in terms of speed against the wind it seemed 34-35 km / h, and in the wind maximum 42 it is with protection for the propeller. I took off my protection and left again, this time it showed against the wind 37 in the wind 45, I changed the propeller and here against the wind 40 in the wind I accelerated to 49 and even to 50, it seemed that I would take a little more. The fairing made on the eve came up very well – the wind no longer blows and the glass turned out fine, that is, I bend down and the head in the helmet becomes a natural continuation of the fairing, and through the glass everything is perfectly visible and most importantly – the wind does not blow. At the moment, I have done the maximum. The motor again jams a bit in my opinion, where it sucks in excess air. You need to put your hand and now try to walk along the river. There is an idea for one colorful route along the Gauja River. In general, we will prepare. By the way, I forked out a bit and bought a GoPro 7 white camera, this video, which will be lower, I shot already with its help. Of course I haven’t really figured it out yet and the video was shot in the wrong format due to which the boat sometimes looks a little deformed, but nothing the next time I’ll try to correct and shoot the material better. As always, photos and videos below.

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Recovery

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The boat is ready again. It was impossible to get a detail for the muffler. I cut off the place that broke off and put a piece of stainless pipe there welded, I hope it will hold. Motor started, adjusted, now it works like a watch. I also made a front fairing so that there was a windscreen and better air flow around the pilot. I hope it will be comfortable on the water. And as it turned out, we still need handles in order to pull the case out o f the water and generally for ease of carrying. I bought four simple handles in the store and screwed it in beforehand, smearing it with silicone. The handles may have spoiled the look, but maybe not, some technicality, functionality added. I have not yet seen a boat on the water with these handles, while it is difficult to judge. Now you need to wait for the weather as soon as it clears up so I will go to the lake to ride. Below are photos as always.

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