Work on strengthening the structure


I thought about the boat and realized that the attachment point of the front and rear is very fragile. I decided to strengthen it with aluminum tubes. I did it this weekend. The boat looks very good, it has a beautiful streamlined hull. Pontoons turned out very well and look organically with the body. One problem that I did not see initially seemed to be plywood as a material – the hull slightly bent at the junction of the front and rear of the boat. Due to the increased humidity in the hangar, plywood absorbed a lot of moisture and bent from improper storage of parts, but now when I connected the front and back, a slight bend appeared. I have a couple of ideas how to fix this, but all this after I have glued the hull of the boat with fiberglass. After pasting the hull, the boat will become tougher and it will be possible to fasten and straighten it normally, and after painting, moisture will no longer affect the hull. I also made a front little ruder and figured out the place where he would stand. It turned out pretty well. As always, the photo report is below. The quality of the photos is not very good, for which I apologize the protective glass broke on the phone and the photos turn out a little muddy.

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I managed till winter


The front end of the ekranoplan is ready. The frame is welded, the pontoons are glued, everything is ready for gluing with fiberglass. I must say that the device is quite large. The main thing is not to sort out the weight, you need to keep within 150 kg without a pilot then it will be good. Honestly, I can’t imagine how I’ll take the boat to the test, although it can be divided into two parts, the roof of my small car is definitely not enough. And you will also need to find some secluded place to calmly conduct the test without unnecessary onlookers.

What else? I can only cover the boat with fiberglass in early December. a lot of work and the workshop is littered with various furniture so for a month I will not write anything here. If everything goes well, then before the new year the boat will be glued and possibly painted. Then the rudders, engine and cockpit will be installed. As always below the photos of the work done.

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The boat has already gained common features


The next weekend flew very fast. I worked whole week and thought about this weekend will finally come and as soon as they come I take my project with excitement. The boat has already gained common features. I screwed the sidewalls connecting the front wing to the rear. Put out the wings at the right angle and welded from iron scraps that lay on the work frame for the motor. It turned out quite nice. I wanted to put a motor in order to understand how everything would look together and start it in order to check the operation of the engine with a pulling screw. But there wasn’t enough time for everything, because you still had to disassemble everything and put it in a corner so that tomorrow people will come to work so that nothing would stop them. Such a position annoys me very much and steals a lot of nervous strength, but on the other hand, I don’t give up everything because of some nonsense. I have to adapt, because I have ideas that need to be implemented. So it is with the material, that I can buy something I can take from scraps and residues. The boat will be experimental, you need to run it, try to drive it here, then everything will become clear about the design and materials. If there is a need to build a new boat and there will be funds for it then I will do everything differently, but for now I need to build a decent, strong, as easy as possible work thing, and I am completely concentrated on this. As usual, the photo report is below.

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Moving forward fast


Today I finished the rear wing of the ekranoplan. Completely made the cockpit and sheathed the wing with plywood on both sides, it remains to paste over it with fiberglass. I also bought polystyrene for the front pontoons and did a little work on the front wing. I have already made the rear and front wheels, the rear large ruder was made of plywood ribs and an aluminum tube, I covered all this with a cloth and coated with epoxy, it turned out pretty well, and the front small ruder did the same thing as with a plywood airlock sheet and plywood ribs. For the front wing, you only need to find the time to assemble it. For the money, the device is still cheap for me. Epoxy and fabric 44 euros, plywood 76 euros, polystyrene 33 euros, glue for plywood 18 euros and somewhere around 50-60 hours of work. I want to do as much as possible before the cold, because I work in an unheated hangar and in the winter I will not be able to do something big. Below is a photo of the work done.

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Continuing to build ekranoplan


For today, the project with ekranoplan significantly moved forward. I managed to do a lot and changed my mind and decided a lot. It is important to maintain the ease of use. I made the spars and ribs of the rear wing, which in combination will also be a boat. Strength is needed, so the weight of the parts is quite large, although I removed the material where I could. However, if I will do the front wing using the same technology using plywood and wood, I’m afraid my motor will not be able to tear the boat from the water, but I had a different solution – I will use a PVC fabric wing and a pair of aluminum or thin-walled steel pipes, it’s easier to work with them, I will make ribs from aluminum tubes and it will be simple and easy. I will do a motor frame at the very end when I collect the main parts of the boat. It is very important that the boat is collapsible, otherwise I can’t get it to the water in my car, the floats will be dressed separately on the shore.

The rear wing I put together today. The ribs are on the spar and glued. At the weekend, I will glue the necessary details for the strength of the structure and process the end boards, then it will be possible to glue the skin. With the front wing, it’s all the more less clear to me, it remains to deal with the floats, I think they should be made of polystyrene foam and pasted over with fiberglass. It is important to make a boat that can completely come off the water and fly stably on the screen. To do this, I will have to find the perfect balance between the weight of the boat with the pilot with engine power and the force that will occur during riding in all modes and in any wind. No stabilizer is provided if the boat lifts its nose too much, then I will simply remove the gas at this stage I don’t need extra leverage; the main thing is to build the boat and it will be possible to turn it on the water further. The main thing for me is to make a boat that could take off low above the water in straight sections and, of course, the atmosphere of a propeller spinning in front and the feeling of flying on an airplane. At the moment, I think there are enough goals. Below, as usual, some photos from the work on the boat.

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