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I put together all the details of the boat. Without a pilot, the boat weighs 125 kg, with me – 200 kg. Connected and started an engine. Engine jams, can not give full throttle. Engine fills. I tried to adjust the carburetor, but there are no changes, we need to look further. But the fact that the motor made it clear was enough to understand that the rear wing rises, and the front does not move. On the model there was also a rear wing always the first to come off, but there the power-to-weight ratio was huge, but here it is not enough. According to the plan, it should be so. When the boat accelerates and the front wing starts to take off from the stream of air tending under it, the rear wing will have to push it down, balance it. But still too sluggish the engine blows under the front wing. I digested the engine mount. I lowered the motor 10 cm lower. Now the tip of the propeller is 30 cm from the ground and from the water it will be about 20-25 cm. Started up again, again tormented with an engine that stalled all the time, but still managed to understand that the lifting force under the front wing not enough to pick it up on the spot. The fact is that my wing is made of PVC fabric and it is soft, which was made for weight. And it turns out like a pocket. So I’m thinking, either redo the wing and make it flat below so that the wing plane is closer to the surface of the water and thereby increase the pressure under it, or not get hot and wait for spring to do sea trials. Then I understand firstly how the boat behaves on the water, how the wings work, maybe everything will be fine at speed. And then, based on water tests, you can continue to improve the boat, or leave everything as it is. I do not know what to do. So much effort has been invested and now wait until spring to understand whether I was right or not. Okay, if someone reads this blog, someone who has experience in such matters and some comments would love to hear any constructive criticism. As usual below the photo and video report.