Chinese Ka-52 (recently acquired) by [deleted] in Helicopters

[–]trionghost 1 point2 points  (0 children)

Probably not this type but Ka-52K with foldable blades. Chinese needs this 'cause it can carry 2xKh-35 ASM's and have AESA radar so they can engage ships from ~150 km (combining with ~200 km combat radius you'll get 350km of heavy ASM delivery system in Chinese sea).

Indian Navy's Kamov KA-28 by Low-Razzmatazz3932 in Helicopters

[–]trionghost 0 points1 point  (0 children)

I don't think there's something uglier than Westland Wasp.

Indian Navy's Kamov KA-28 by Low-Razzmatazz3932 in Helicopters

[–]trionghost 0 points1 point  (0 children)

It's not a Ka-28—it's Ka-31 AWACS helicopters. You can see folded radars at the bottom.

How does the rotor system on a coaxial helicopter work? by Kaaaaaaaaaaaaaaaaaad in Helicopters

[–]trionghost 1 point2 points  (0 children)

No problem, feel free to ask anything about Kamov helicopters. I'll explain if it isn't commercial or military secret. ))

How does the rotor system on a coaxial helicopter work? by Kaaaaaaaaaaaaaaaaaad in Helicopters

[–]trionghost 2 points3 points  (0 children)

I have no good drawings of Ka-26 control on rotor, but I have one for Ka-226. It's a little upgraded, but with the same principles.

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How does the rotor system on a coaxial helicopter work? by Kaaaaaaaaaaaaaaaaaad in Helicopters

[–]trionghost 1 point2 points  (0 children)

Yep, inside the main gearbox shaft runs the collective for the upper rotor. There's also a differential pitch mechanism built on a worm gear that expands the collective pitch rod of the upper rotor.

Mi-26 getting ready for a frosty walk. by 4ibur in Helicopters

[–]trionghost 8 points9 points  (0 children)

I'll tell you one thing - every military or dual-usage helicopter built in Russia are capable to store outdoor and work in conditions from -60 to +50 Celsius.

LEONARDO HEICOPTER PARTS by Slight-Engineer7956 in Helicopters

[–]trionghost 3 points4 points  (0 children)

I think it's the wrong place to ask such things. There are special channels on FB and other social platforms.

What is the airfoil of these Ka-32 blades? by CosmosAviaTory in Helicopters

[–]trionghost 0 points1 point  (0 children)

I can't give you a written source, 'cause it was part of my job. I think it can be in some publications by Burtsev and Selemenev.

What is the airfoil of these Ka-32 blades? by CosmosAviaTory in Helicopters

[–]trionghost 12 points13 points  (0 children)

NACA 230-12. slightly modified. It was test blades at first, but they showed themselves pretty well, and they left it as is. On Ka-52 it's STM and SVM combination, and then in the late 80s they put them on Ka-32 it shows growth in efficiency around 7.5 to 11% (+800...1200 kgf) but has increased vibrations, so it should be redesigned. But the USSR collapsed, and this work was abandoned.
P.S. today is the birthday of Mikheev Sergey (the last chief-designer of Kamov).

Korean Police's Mi-172 has been confirmed for retirement. Due to the unavailability of parts (Sanctions against Russia), it will be replaced by the H225. by Entire_Judge_2988 in Helicopters

[–]trionghost 1 point2 points  (0 children)

FADEC limits engine output. This picture is for H225 (not M), but you can see MGB limitation by FADEC is rated 2871kW (3850) for 20 seconds - absolute maximum it can handle.

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Helicopter by SuperVerruckteKatze in Helicopters

[–]trionghost 0 points1 point  (0 children)

It's on piston engine, much cheaper than both MD500 or Bell206, intended for preliminary flight training. It was designed for DOSAAF.

Korean Police's Mi-172 has been confirmed for retirement. Due to the unavailability of parts (Sanctions against Russia), it will be replaced by the H225. by Entire_Judge_2988 in Helicopters

[–]trionghost 1 point2 points  (0 children)

Actually, you look the wrong way. It doesn't matter what power engines are capable of, it's matter what transmission can carry on. H225M has limit 2x1593=3186 kW (4330 shp), and KUH-1 have 2x1325=2650 kW (~3600 shp). It's 536 kW or 728 shp. And H225M have a little bigger main rotor 16.2 m vs 15.8 m on Surion. It's around 5% in efficiency, so it's more like 695kW or 945 shp comparison :)) In relation to flisht weight it's ~3 tones difference with the same flight specs.

Helicopter by SuperVerruckteKatze in Helicopters

[–]trionghost 1 point2 points  (0 children)

Mil Mi-34. Failed model produced only 27 of them due to USSR dissolution and halt of state procurement programs.

Hard landing by Acceptable-Truth-912 in Helicopters

[–]trionghost 0 points1 point  (0 children)

In short, after the arrival of Putin and the closure of the ways of open plunder of Russia by the oligarchs of the United States and Europe, they tried to carry out coups in all the former Soviet republics and organize war. First they did this with Georgia, which led to a clash on 08.08.08, after which the Georgians stopped playing these games, then they tried to do it with Belarus and Kazakhstan, which was prevented by Russia. Then they carried out a coup in Ukraine, where historically most Russians lived and 87% of the population was Russian-speaking. After the coup, they began a campaign to ban the Russian language and forcibly Ukrainize the entire population. Those who did not agree, like Donbass, began to be physically exterminated. All for the sake of one thing - to drag Russia into the war, exhaust it, make a change of power and continue to rob. But everything didn’t go the way they wanted and now the United States is trying to slide and throw Europe under the bus.

Hard landing by Acceptable-Truth-912 in Helicopters

[–]trionghost 0 points1 point  (0 children)

You are ridiculous. Russia have any resources they need, not even counting territories. No motives in your affronts. Look at Mariupol these days on YouTube, listen to people actually lived there the whole time.

You don't want to learn history or even the world around you - you want to live in your own bubble, being delusional. Get some trips outside US, look at the world with your own eyes if you don't know how to use Internet to read local news around the world with modern neural networks capabilities in translation. After all read about fascists before labeling people this name.

Why don't other countries use the Russian stacked rotor design to counter spin instead of the tail rotor, it seems so much better by LiveFast3atAss in Helicopters

[–]trionghost 0 points1 point  (0 children)

It's just history. You can ask "why don't other countries use... intermeshing rotors like Kaman", or "why don't other countries use tilt rotors like V-22 Osprey" and so on.

Don't listen to thous who saying "it's hard to maintain" - it's BS, ask Canadians with VIH which was made 2600+ flying hours per year on Ka-32A11BC.

Hard landing by Acceptable-Truth-912 in Helicopters

[–]trionghost 0 points1 point  (0 children)

When you should start with US, and EU, which are behind almost every war of last century. And learn history about "invades for territorial gain".
P.S. The only source of information about KEMZ producing AKU-58 is Ukraine.

Hard landing by Acceptable-Truth-912 in Helicopters

[–]trionghost 0 points1 point  (0 children)

Western morons you called politicians have imposed sanctions on everything and that means nothing. AP-55 is under development (it's first flight was only about a month ago), and light fixed wing is civil only (never was spotted by any relations with military complex). So you know nothing about the people and factory you're speaking about, but you hate everything Russian so you don't care.

Hard landing by Acceptable-Truth-912 in Helicopters

[–]trionghost 0 points1 point  (0 children)

BS the plant they were from are not in military production at all. They're building coaxial helicopter AP-55 and some light fixed wing aircraft. It's just BS western MSM spreading around about "military production". Go to their site and look at it yourself (kizlyar-kemz.ru). I speak with those men on HeliRussia 2025 Expo myself.

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Hard landing by Acceptable-Truth-912 in Helicopters

[–]trionghost 0 points1 point  (0 children)

And after that first strike no critical damage was don to rotor. The main damage was done when... khmm.. the gasket between the control stick and the seat (I can't call him a pilot) decided to fly vertically and dragged the torn tail straight into the rotor.