Category: News

The internal combustion engine isn’t just an automobile engine. In aviation, internal combustion engines have been called piston engines for over 100 years. And throughout the first half of the 20th century, piston engines dominated aviation. And it’s precisely these engines that power unmanned aerial vehicles (UAVs) today. Moreover, their power output is already quite comparable to that of automobiles — some 4-cylinder models exceed 50-60 hp. But they have one unique feature: instead of a transmission and wheels, they have… a propeller. Although transmission in the form of a reduction gear are also common. The most common today is the 2-stroke engine, which has a minimal number of parts,…

Our website is almost 10 years old, and our logo has been on it since the very beginning. But there’s no real protection against copying or use. Or rather, there wasn’t until today. Now there is — we’ve officially registered our logo as our trademark. We can’t yet say how necessary or important this is… There’s an old joke about an elusive cowboy who couldn’t be caught because no one wanted him. But another character had a different opinion, saying, “Give me everything which allowed, and I’ll decide later whether I need it or not!” This suits us better. So let it be. Just in case, here’s a list of…

We’ve been thinking and decided to put together a short lecture series on the topic “When the Earth was still warm, and winged jet-powered mammoths and pulse-jet dinosaurs roamed it,” or more precisely, on the history of aviation. Alongside our YouTube series, we’ll do it in parallel. We’ve simply noticed, to put it mildly, that some of our know-it-all comrades know so much about a pulse-jet engine that they… know practically nothing about it. But they explain it with a smart demeanor. And a lot of people listen to them. That’s why we needed the series. It’s a very informative lecture series, we must say. Stay tuned, you won’t get bored….

Our business partner opened a car service center of high-quality German repair in the Western Germany! And it was very difficult! It only seems that way to some know-it-alls that right now as soon as we come to Europe, open our car services, and start fixing everything there – and euros will just flow into our pockets in an endless stream. In fact, we will disappoint you – nothing will start, nothing will open and nothing will flow. Why? Because you need a lot of different and very difficult conditions. The first and most important thing is to learn German perfectly. Without knowledge of German, you can simply not start…

We recently looked and discovered an amazing thing – the pulsejet engine, which, as we were assured, was hopelessly outdated 80 years ago, turns out to be alive! And not just alive, but seriously considered as an engine for some types of UAVs. The only problem is – it is unclear how to count it. Because, despite hundreds of scientific papers, dozens of dissertations and even several smart books, which were probably created by thousands of very smart engineers and scientists, in 40 years not a single working computer program for modeling pulsejet engine has been created. That is, if something was created somewhere, it was done once – for…

Why not? — we thought over a glass of tea on Friday evening. Indeed, our contribution to the field of attack unmanned aerial vehicles (UAVs) not only exists, but already consists of several main areas. These are pulse jet engines, turbojet engines, and both types of these engines are directly intended for attack UAVs, as well as pneumatic launch systems for such UAVs (catapults). Not so little, in fact. Why is that? Because at different times we did some research work, the results of which are published and presented in our articles on the topic of UAVs. What kind of work these are, in fact, even their name alone says….

As it has become known recently, the topic of pulse jet engines is gaining popularity again, so we, out of habit, also decided to contribute to this matter. At first, we conducted some research and even published an article on modeling the flow in the resonant exhaust pipe of a pulse jet engine, and it is on this resonance that the entire working process of this engine is built. However, it later turned out that for the new Ukrainian cruise missile “Trembita” not the classic, valved, but the valveless version of the engine was chosen. Unfortunately, the valveless pulse jet engine is significantly inferior to the valved one in all…

Valve grinding is traditionally not the most important repair process for some engine mechanics. Indeed, why grind them if you take more abrasive paste and lap whilst all not be erased. Meanwhile, high-quality grinding of the valve chamfer is extremely important, without it it is impossible to perform high-quality repair of the cylinder head. In addition, a machine for processing seats can only work in tandem with a machine for grinding valves, and if someone, through ignorance or thoughtlessness, decides to break this pair, then his next step will be a return to grandfather’s lapping technologies. But this is not the entire list of problems that await those who want to…

For most repairmen, the machining of cylinder head seats is an even more mysterious process than, for example, honing. It is in the machining of seats that 100-year-old myths still prevail among engine mechanics, not only preventing the correct repair of seats, but even simply understanding the essence of this type of machining. Meanwhile, being a captive of old-fashioned techniques, not knowing either the technologies or the equipment for machining, it will not be possible to repair the cylinder head of a modern engine. Just as it will not be possible not to get into a mess, not to fall into a puddle, not to get caught on a rusty lure or…

Today, a crankshaft grinding machine is undoubtedly one of the most, and maybe even the most expensive item in the entire range of engine shop machines. Moreover, this item is also the most accurate, since grinding accuracy is no longer fractions of a millimeter, but microns. And in general, for a grinding machine, an accuracy of 5 microns is somehow not even a conversation about anything (because it should be more accurate). Unfortunately (or fortunately), the times when you could grab an ancient machine from the distant Soviet Union for next to nothing are long gone. Today, you can no longer find such machines, and they do not meet modern…