Although there is confidence in the MZ-2200 engine, but as an engineer or more realistic, it is certainly not to the point of speaking with a conscience, after comparing the advantages and disadvantages of the two engines, sighing at the moment, some aspects still have to admit that there is such a gap. Pen & Fun & Pavilion www.biquge.info

First of all, our MZ-2200 engine is a newly developed engine, at least in terms of reliability, it is far from the advantages of the PW-127 series that has been in service for many years; The second is that our fuel consumption can not be compared with it, after all, our core engine is a 4-ton large bypass than turbofan engine, the potential of the entire core machine is 2700 horsepower under normal circumstances, and more is able to reach 3500 horsepower to be considered excellent, and naturally this and PW-127 series is incomparable, the two sides are not at the same level at all. ”

The so-called two sides are not at the same level, this is to talk about the history of Pratt & Whitney Canada, first of all, Pratt & Whitney Canada as a company based on a maintenance station set up in Canada by Pratt & Whitney in the United States, has always been the development of turboshafts and turbo engines as its main business.

But after all, this is just an engine company that develops turboshaft turbopulp, and in many ways it is not as good as Pratt & Whitney in the United States, so it has always been just a change to the initial PT-6 series engine, and when it came to the seventies, it was ready to develop a new PT-7 series of engines, and later I don't know what crazy it was, and renamed the PT-7 as the PW-100 series turbo engine, which collided with the name of the F-100 turbofan of the United States Pratt & Whitney.

The PW-100 series of turbo pulp, in fact, is rarely called PW-100 when it is outside, more is called its improved model name: PW-115/120/124/127, etc., in fact, the core engine of the entire PW-100 series of turbo engine is planned to be rated power is only a series of engines covering 1500-2500 horsepower.

Look at the MZ-2200 engine here, if this engine is really designed according to normal conditions, the power can at least reach about 2700 horsepower, and the highest is completely possible to reach the level of 3500 horsepower, and the reason why this time only requires 2200 horsepower is that this engine chose to reduce the power scheme when developing, so as to improve the engine's other comprehensive indicators such as life and reliability.

Therefore, the MZ-2200 engine is actually more like the PW-1120 engine after the reduced thrust of the F-100 turbofan engine of Pratt & Whitney in the United States.

In contrast, Pratt & Whitney Canada's PW-100 series turbo engine, if you want to take one as an analogy, this is actually just the body of a mid-thrust core engine, just like the turbofan 12 engine in the southwest of AVIC at this time, the whole model may be improved to the final level of close to 11 tons, but in essence, it and the PW-1120 engine are not the same level of engine.

When the PW-1120 is based on the fuel consumption of the turbofan 12 based on the base of the big push core machine, of course, it is based on the fuel consumption of the turbofan 12 engine after the overhaul and upgrade of the middle push core engine, so the same reason is put on the latest improved PW-127 engine in the PW-100 series of Pratt & Whitney Canada, and the comparison between this engine and the MZ-2200 after the reduced power, the fuel consumption of the MZ-2200 is still slightly higher than that of the PW-127 series.

But in any case, the MZ-2200 engine is based on the specific national conditions of the republic, and the results obtained after some trade-offs are also very beneficial to the research and evaluation of the shortcomings of the republic's life and comprehensive performance of aero engines.

I believe that with the solid foundation laid by the MZ-2200, it is entirely possible for the subsequent entire series of engines to reach 3500 horsepower, at least the turbofan engine of the F-100 series of Pratt & Whitney in the United States to the end, that is also a F-100-PW229IPE model with a thrust of up to 13 tons.

But then again, the MZ-2200 engine really can't be compared with the PW-127 in terms of fuel consumption, but compared with the turboforce 5 used on the previous Yunqi, the engine developed by the MZ-2200 is suspended without pressure in all aspects, so the best choice in terms of power is the improved turbo of the MZ-2200 in China.

"I understand, this reliability can gradually mature through the accumulation of time in the later stage, as for the fuel consumption of the engine, this should be difficult to solve at present, after all, it is congenitally a level larger than PW-127, and a little higher fuel consumption must be accepted, and after the development of this engine, it is not comparable with PW-127, which can be understood."

It is impossible for an aero engine to be without shortcomings, such as the poor reliability of the F-100, the military performance of the F-110 is not spicy enough, the thrust-to-weight ratio of the Al-31 is low, and even the turbofan 12 is not an engine without shortcomings, and now the MZ-2200 has shortcomings, how can this not be tolerated?

Yang Hui said that this problem can be accepted, at least after the reliability of the engine comes up, it can be used as a civil aviation flight to ensure safety, and the fuel consumption does have a great impact on civil aircraft, but the fuel consumption of the turbo engine is not high, plus the low fuel consumption of the PW-127 is an embargo on Iran, so this time the MZ-2200 engine is almost a nail in the coffin.

"Since we can accept the turbopul engine improved by the MZ-2200, then I will answer the first question that has not been answered before, that is, about the engine output power of the MZ-2200 after being improved into a turboprop engine, according to the previous estimates, we plan to make some small improvements to some of the previous places in the process of improving the turbo engine, and finally ensure that the power of the engine is guaranteed at 2400 horsepower, which is enough to meet the power requirements of the MA600."

With a power of 2400 horsepower, with a suitable propeller, Yang Hui fully believes that the MA600 will have absolutely abundant power, and at that time, the MA600 equipped with the MZ-2200 turbo model may not only be able to shine in Iran's orders, but even the engines in some other MA600 orders can also compete for it, after all, this strength is still there.

"You must do a good job of the engine, as for how to replace Hamilton's products on the propeller side, we have to look at the ability of the northeast side of AVIC, after all, the only factory specializing in propellers in China is under their banner, if they really can't get the right engine, we can only find another way, anyway, Russia and Ukraine have relevant technologies. As for how to arrange the number of this turbo engine, you should be clear, right? ”

"Understand, MJ-2400 turbo engine, this is the engine number naming convention set by the company, and we will definitely not forget it."

This Chief Yin is still very clear about the way here, so Yang Hui is also satisfied and ready to leave, as for whether to go to see the progress of the straight 18, Yang Hui really has no time in this regard, the relevant Iranian inspection and negotiation team has arrived at the United Passenger Aircraft Company, and now you need to hurry up and bring the relevant information to Chang'an!

(To be continued.) )