Bangladesh army unhappy with Chinese tanks with Ukrainian engines

The Bangladesh army, which purchased Chinese main Tanks VT-1A, was unhappy with the purchase. The main claims are made against the tank engine - the Ukrainian 6TD-2.

Bangladesh purchased 44 Chinese tanks equipped with a 6TD-2 engine. Reportedly, during the operation of the tanks, problems arose with Ukrainian engines, and obtaining high-quality spare parts for repair is impossible due to the ban imposed by Ukraine on the re-export of 6TD-2 engines and spare parts to China by China.

According to some reports, the required power density is not provided, especially in operating conditions at medium altitudes.

The thing is that when the Chinese brought the VT-1A tank to the world market, they chose the Ukrainian engine, since they were equipped with Pakistani Al-Khalid tanks, which are, in fact, the same VT-1A, produced in Pakistan under a Chinese license with insignificant modernization. That is, the 6TD-2 unit has been worked out.

They predicted a good future for the Chinese tank in the export market, China managed to sign contracts for its supply to Bangladesh, Morocco and was going to supply a batch of tanks to Peru. However, in this country the interests of China and Ukraine crossed, which tried to sell its "Oplot" to the Peruvians. The Chinese tank won the tender, in response to this Kiev banned the re-export of its 6TD-2 engines.

In this regard, the supply of spare parts for these engines also stopped. Currently, Chinese specialists are developing their own engine to replace the Ukrainian one, which will be installed on export vehicles.

Comments

[demo]

They predicted a good future for the Chinese tank in the export market, China managed to sign contracts for its supply to Bangladesh, Morocco and was going to supply a batch of tanks to Peru. However, in this country the interests of China and Ukraine crossed, which tried to sell its "Oplot" to the Peruvians. The Chinese tank won the tender, in response to this Kiev banned the re-export of its 6TD-2 engines.

Nothing personal. Just business.

[hrych]

They think their tank is easy to control, but no. The Chinese, Hindus, Turks, etc. have problems. Even the South Koreans are talking about German. Well, talk about aviation. At one time, skilled Swedes tried to engage in tank building, spat and bought Leopards. By the way, we were busy with a crazy tank, literally.

[Temples]

dissatisfied with Chinese tanks with Ukrainian engines

Some strange Bangladeshis.

Try another Mongolian nuclear power plant with Moroccan nuclear reactors.
Good thing too.

Are the sparklers from there? From Bangladesh?
Beautifuloooooooo!

[Shuttle]

Quote: Temples

dissatisfied with Chinese tanks with Ukrainian engines

Some strange Bangladeshis.

Try another Mongolian nuclear power plant with Moroccan nuclear reactors.
Good thing too.

Are the sparklers from there? From Bangladesh?
Beautifuloooooooo!

Bengal desha is literally the place of Bengalis. Once upon a time the Indian state of Bengal and this very Bengal desha were one kingdom within the Bharata-varsa empire. But the wise Anglo-Saxons nshinkovali her leaving for a bunch of countries.

[Paranoid50]

Quote: hrych

the Swedes tried to engage in tank building, fiddled with a crazy tank, in the literal sense.

But what a "gem" in the collection of any modeler.

[venik]

Quote: hrych

They think their tank is easy to control, but no.

=======
Well, Duc tank is still "riveted" then you can ..... But the engine and transmission - there is already OH !!! Not everyone can do it!
---------

Quote: hrych

By the way, we were busy with a crazy tank, literally.

========
Strv.103 was called. Original machine utterly! Not only was the cannon attached there tight (!) and the guidance was performed driver !): horizontal - by turning the tracks, vertical - by tilting the body (!!).
By the way - there were also 2 (two engines!) And BOTH - not swedish: the main diesel is a Rolls-Royce and the auxiliary turbine is a Boeing (it seems)!

[vkl.47]

Life teaches nothing to do with Ukraine to communicate more dearly. They already remember this. It is always a marriage.

[aszzz888]

Bangladesh purchased 44 Chinese tanks equipped with a 6TD-2 engine. Reportedly, during the operation of the tanks there were problems with Ukrainian engines

Find out what "problems" specifically ... But it turns out that the Bengalis flew into the tanks!

[Insurgent]

Quote: aszzz888

Find out what "problems" specifically ...

That's it After all, 6TD-2, this product is still Soviet and worked out to the smallest detail ...

Based on the early 6TD model,in the mid 80s a new modification of the diesel engine was created - 6TD-2. Its power was no longer 735 kW (1000 hp), as in the 6TD, but 882 kW (1200 hp). Its detailed unification with the 6TD diesel engine was provided by more than 90%, and with the 5TDF diesel engine - more than 69%.

In contrast to the 6TD engine, the 6TD-2 engine used a 2-stage axial-flow compressor of the pressurization system and changes in the design of the turbine, bellows, centrifugal oil filter, branch pipe and other units. The compression ratio was also slightly reduced - from 15 to 14,5 and the average effective pressure was increased from 0,98 MPa to 1,27 MPa. The specific fuel consumption of the 6TD-2 engine was 220 g / (kW * h) (162 g / (hp * h)) instead of 215 g / (kW * h) (158 g / (hp * h)) - for 6TD.

[aszzz888]

Insurgent
Today, 10: 13
... Exactly yes After all, 6TD-2, this product is still Soviet and worked out to the smallest detail ...
...

Twist not twist, but extreme Bengalis.

[Insurgent]

Quote: aszzz888

Twist not twist, but extreme Bengalis.

How to say ... Rather, Bengalis are simply "in flight" ...

The scourge of these diesel "two-strokes" is increased wear and tear, up to failure, as a result of poor quality air cleaning.

On T-64 tanks, this problem was solved by installing "cyclones", the maintenance of which also had a number of features.

Whether the Chinese retained this cleaning system in the layout of their tanks, or simplified it by applying some other solution is a question to fellow Chinese ...

[IT Professional]

We were told at the department that the main problem when driving on slopes, there are 2 crankcases and oil, when driving on a slope, drains, which is why - overheating and failure. Carters began to make complex shapes, but it didn't seem to help much. A conventional V-shaped diesel engine is more reliable, although it takes up more space. And the problems with cooling, this is from the time of the T-55

[Bad_gr]

Quote: Insurgent

On T-64 tanks, this problem was solved by installing "cyclones", the maintenance of which also had a number of features.

Cyclones were there initially. In the future, they were supplemented with ordinary filters (although they really did not want to do this, since it made maintenance more difficult)

[demo]

After all, 6TD-2, this product is still Soviet and worked out to the smallest detail ...
Trifle trifles - strife.
I was not lazy and read from start to finish https://ru.wikipedia.org/wiki/%D0%92-2.
It makes no sense to retell the heroic chronicle.
Those who wish can read it themselves.
But the end of the article "inspired" -
"... The V-30 diesel engine, which was basically developed in the 2s and its subsequent modernization, even at the beginning of the XXI century, are characterized by high specific parameters, their specific weight is only 1,9 kg / l. From. (For V -2), and the specific fuel consumption is 160-175 g / l. S. H [18]. The disadvantages are mainly due to technological and other limitations that existed at the time of the development of the engine and its production, in particular:

ineffective operation of oil scraper rings of an outdated design - as a result, high oil consumption for waste - 20 g / l. s. h;
4 valves per cylinder inherited from the aircraft design, unnecessary with less power;
a complex scheme of camshaft drives, containing a large number of mechanical transmissions (in the 1930s, there were no drive chains capable of operating at high speeds yet) - as a result, an increased noise level, low resource, difficulty in maintenance; [source not specified 2856 days ]
a complex prefabricated crankshaft, the cost of which is about 30% of the entire engine - in the 1930s there were no methods of volumetric stamping of such large parts;
ineffective electric starting system (low efficiency of the ST-712 starter, suboptimal gear ratio).
high rate of pressure growth on the piston group (the so-called stiffness of the engine), leading to a decrease in the total resource. The reason for this is not quite effective mixture formation, which is due to a large extent to the chosen shape of the combustion chamber, the number of nozzle openings and some other details [19].
the lack of joint balancing of the crankshaft and the flywheel does not significantly increase the resource.
assembly and tuning of the engine using a low-skilled labor force led to production defects, especially in the first war months. Due to the lack of high-quality valve adjustment, the complex multi-gear design of the transmission from the flywheel to the timing, the meeting of valves with pistons became a very common occurrence. Engines of the first releases were not always able to reach the standard 50 moto / hours even in bench conditions; at the same time, the design, for all its complexity, still provided high maintainability, up to the engine bulkhead in the field.
Nevertheless, over the long years of serial production of diesel engines V-2, D12 and D6, their design, despite the emergence of new materials and technical solutions that make it relatively easy to eliminate these shortcomings, practically did not change. "

Like so.

[Insurgent]

Quote: demo

I was not lazy and read from start to finish https://ru.wikipedia.org/wiki/%D0%92-2.

Quote: demo

Like so.

Professor Preobrazhensky did not recommend reading newspapers wikipedia before lunch ...

[demo]

Let's not refer to the authorities!
Everything is quite simple.
A diesel engine, in comparison with a gasoline engine, is more technologically complex.
Tolerances to manufactured parts, as well as the fact that a pressure of 40-100 MPa develops in the combustion chamber, requires a very reverent attitude both to the manufacture of parts (and this is not only processing, but also the metals themselves) and assembly.
Diesel, despite the fact that it is on the tank, requires timely maintenance and replacement of those or others, both consumables and components and assemblies.
It should be borne in mind that Bangladesh is not a very rich country. And on top of that, they are the same Hindu as the neighbors.
It is not typical for Hindus to be pedantic workers and operators.
You can also say about fuel.
Sometime a few years ago, one person who is now in charge of Roscosmos said that in order to operate the Mistrals (remember this Santa Barbara?), It is necessary to purchase fuel from France.
And our petrochemists, for now, learn how to make it.
I cried and laughed at such a complete idiocy of the statement!
Maybe there is no Ukrainian fuel in Bangladesh? Have the Ukrainians forgot to say this?

So we have what we have.

[Insurgent]

Quote: demo

Let's not refer to the authorities!
Everything is quite simple.

But you referred to wikipedia.org, providing information on completely different engines with a different construction scheme ...

[common man]

Quote: demo

"... The V-30 diesel engine, which was basically developed in the 2s, and its subsequent modernization

And here B-2, if we are talking about 6TD-2?

[demo]

Read the link. All modern engines have their ancestors.
And diseases are inherited.

[common man]

Quote: demo

All modern engines have their ancestors.

You figure it out first. V-2 and 6TD-2 are like heaven and earth. They have in common only that both ICEs. AND EVERYTHING.

[demo]

In 1975, R&D work began to further increase the power of the 5TDF engine. Forcing the five-block 5TDF became risky - the engine was already subjected to loads close to the limit. To achieve the planned 1000-horsepower level, it was decided to add one more - the sixth cylinder. The proposal was supported by the MOP board and was formalized by the order of the minister "On the creation of a 6TD-1 engine with a capacity of 1000 hp".

Then yourself ...
http://www.alexfiles99.narod.ru/engine/6td/6td-1.htm

So about the sky and about the earth - it's you with your finger to the sky.
It is impractical to create an engine from scratch.
They take the most successful and tested model and begin to stick everything that God has on their souls there.
When the limit has been reached and improvements are impossible, then they start either designing a new one, or looking for another donor.

[common man]

Quote: demo

In 1975, R&D work began to further increase the power of the 5TDF engine.

And 5TDF is as far from B-2 as 6TD = 2. In the end, feel the difference.
6TD-2

and B-2: its modification)

[demo]

Thanks. Appreciated.

[common man]

Well, thank God.
Good luck to you.

[venik]

Quote: Insurgent

Exactly yes After all, 6TD-2 is a product Soviet and worked out to the smallest detail ...

========
But the assembly is NOT Soviet already! And given the catastrophic qualifications of production and technical personnel in modern Ukraine (by the way, the Ukrainians themselves admit this), what can we expect from engines, if you have already forgotten how to weld the armored hulls?

[Kot_Kuzya]

In general, you shouldn't get involved with any Ukrainian in general, you should shy away from them as from lepers. I hope this will be the last straw, and no one around the world will cooperate with Ukraine anymore, since this is only one problem.

[Herman 4223]

Now China will create its own analogue of a two-stroke engine. Which will also be cheaper than the Ukrainian one, and one more shop for the Sumerians will be closed.
Pakistan will switch to engines from China for sure.
And for China, such an engine may come in handy for light mountain tanks.

[Tuzik]

A Chinese tank won the tender, in response to this Kiev banned the re-export of its 6TD-2 engines

right, neither yourself, nor people, close production.

[nikvic46]

I am not a specialist in Chinese weapons, and then I come across an extraordinary hybridity of these weapons, from aircraft carriers to tanks.

[Insurgent]

Quote: nikvic46

I stumble upon an extraordinary hybridity of this weapon, from aircraft carriers to tanks.

Rather modularity... The Chinese, using ready-made knots, "sculpt" their technique on their basis.

[Ka-52]

The Chinese tank won the tender, in response to this Kiev banned the re-export of its 6TD-2 engines.

Currently, Chinese specialists are developing their own engine to replace the Ukrainian one.

as a result, dill will remain at a broken trough. And could supply engines

[Daniil Konovalenko]

This is how to buy tanks with imported engines, a hodgepodge ...

[Zaurbek]

I can't believe that if there is a demand for diesel engines, Ukraine does not sell them ...

[My_log_in]

Puppies in their own way for some reason I'm not surprised, but the Chinese are not fools, I believe that Motor Sich will win back with a margin

[fn34440]

It's time to go to the WTO Arbitration Court and return low-quality products to the scammers. And the London Arbitration.

[Pavel57]

The Chinese tank won the tender, in response to this Kiev banned the re-export of its 6TD-2 engines.

Another stupid thing.

[Kot_Kuzya]

Not stupidity, just the owners from Washington forbade non-slaves to sell engines to the Chinese.

[Pavel Patrashov]

Ukrainian engines ......,? these engines were made in the USSR, 50-60 years ago ...,

[Pashhenko Nikolay]

Two-stroke diesel engines with counter-moving pistons are disgusting from birth. Increased wear in the area of ​​inlet and outlet ports of both cylinders and pistons with rings leads to the fact that after six months of operation, the new engine turns into trash. According to our own experience with 2D100 and 10d100 ( locomotive) after six months after receiving from the repair, buckets of oil, smoke from a rocker, explosions at startup, and so wait, the exhaust manifold will light up. I do not think that 6td is different.

[APASUS]

They predicted a good future for the Chinese tank in the export market, China managed to sign contracts for its supply to Bangladesh, Morocco and was going to supply a batch of tanks to Peru. However, in this country the interests of China and Ukraine crossed, which tried to sell its "Oplot" to the Peruvians. Chinese tank won the tender, in response to this Kiev banned the re-export of its 6TD-2 engines

Here Ukraine dug a hole for itself, not even a hole, but a whole moat.

[Hiller]

Chinese fish with hohlyatskiy bacon - does not mix well and leads to indigestion.