Chapter 857: Shortcomings for me

The "Hawk" (HAWK) type trainer is a medium/advanced jet trainer designed by Niuguo Hawk-Sidley for the Niuguo Air Force. It can perform close air support missions. This aircraft is used to replace the first-generation jet trainers such as "Jetmaster", "Mosquito" and "Hunter" type.
Due to the merger of Hawker-Siddeley and Niu Guo Aircraft Company, it is called Niu Guo Aerospace Company (BAE). So now it is also a leading product of Aerospace.
Niu Guo has always attached importance to the role of trainer aircraft. At the end of the 1960s, the Niu Air Force proposed to replace most of the current aircraft of the Niu Guo Air Force Training Command in the 1970s; and because several new aircraft were planned to enter the frontline service, it was necessary Modify the entire flight training system and develop a new generation of intermediate/advanced jet trainers to ensure economic and effective training and meet future air combat requirements.
What they fancy is economy. If you use fighter jets for training directly, the cost is too high.
After the bidding, Hawker-Siddeley won the bid, and Rolls-Royce's non-afterburning turbofan engine "Adul" was used as the power unit. The "Eagle" directly entered the development stage of five pre-production aircraft without prototype development. The batch production aircraft entered service in the army on November 4, 1976.
Until now, this aircraft is less than five years old.
Although it has started to export, it has not been exported to a few countries after all, and it is not accessible to the Han Air Force. Aren’t you omniscient and omnipotent? Now, you are talking about the shortcomings of our aircraft. If you can't tell, see how I satirize you.
Kaili's big blue eyes were looking at Chen Rui, and they were full of provocation.
It's no wonder that in the Western world, there are always a group of people who look down on ancient Eastern countries. After all, since the Opium War, Han has always been a weak image and is the target of arbitrary slaughter by these countries.
Therefore, we must severely suppress the opponent and let the opponent know how powerful the Han Air Force is.
"The advantage of this trainer is its small size and flexibility, and good maneuverability." Chen Rui began to analyze: "It can complete many flight training projects. At the same time, it has a good view of the front and rear two seats. It is a good trainer."
Chen Rui said a good thing. Everyone present showed a complacent look. It is true. This is a very good trainer. Otherwise, how could it be selected by one's own side as their own flight demonstration plane?
"However, if its shortcomings are obvious, it uses a relatively simple mechanical hydraulic operation, and we know that the new third-generation machines have begun to use fly-by-wire operation, hydraulic operation and fly-by-wire operation, there are There are many different characteristics, so the pilot has to adapt again."
As Chen Rui said, those present had no objection.
The new fighter planes have already become popular for fly-by-wire control. Now Niu Guo’s newest fighter is the Tornado fighter, which uses fly-by-wire control. The operating characteristics are indeed different.
Chen Rui said that with confidence, his own J-14 and JH-7 were all controlled by telex.
"This is not a shortcoming, I want you to tell us what shortcomings our plane has." Kaili continued to Chen Rui.
"The shortcomings of this aircraft are the poor longitudinal control stability; insufficient engine thrust; poor directional/lateral stability; sudden and unpredictable stalls; the nose suddenly raised when the air brakes were deployed."
When Chen Rui said this, the people present remained unchanged, and Kaili suddenly lost her voice and said, "How did you know?"
These are all shortcomings, and this shortcoming is only known to those who have flown it. Who would have thought that Chen Rui actually knew the shortcomings of this aircraft?
Of course, Chen Rui knew that he had simulated this aircraft during the flight simulator. He also imagined that if he had the same trainer, he could greatly reduce training costs.
But now that he said this, everyone present was shocked, how did he know?
"This aircraft is powered by an Adur 151-01 unpowered turbofan engine, with a thrust of 23.13 kN, which is 2360 kg. The empty weight of this aircraft is already as high as 3750 kg, the maximum take-off weight. It even reached 8,500 kg. In this case, how can the engine thrust be sufficient?"
Of course, Chen Rui couldn't say that he flew a variety of simulators, he could only use the data that he has now to analyze, and he was right.
The engine thrust is seriously insufficient, which is a basic element that restricts the performance of this aircraft. The thrust-to-weight ratio is quite low and may be more fuel-efficient. However, during the flight show, the performance of this aircraft is severely restricted. For example, do a climb. , You must have speed, and vertical climb is even more impossible. How can you compare with your own fighter?
The F-14 fighter jet has a thrust-to-weight ratio of more than 1 during the flight demonstration, and its various movements are so smooth that it is much more beautiful than their trainer aircraft.
"At the same time, because it is a trainer, the front and rear cockpits are arranged high and low, which greatly increases the air resistance and longitudinal instability. The tail of the elevator is not large enough, so the just said these questions."
"The most weird design is the air brake. The ordinary air brakes are all on the back of the aircraft, but this aircraft is actually set between the pelvic fins. This single-piece air brake has a higher weight and cost than usual. The speed brakes installed on both sides of the fuselage are lower, but they cannot be used during landing. Moreover, when used, because of the extra torque generated, the nose will be raised inexplicably, which is simply a killer for pilots."
When Chen Rui said this, he was already ridiculing. He had a good impression of the people present. After all, he is a colleague. Everyone is the pride of heaven. However, since this Kaili looks down on herself, she can only be What to say and what to say, to tell all these things.
A design error is a design error.
After Chen Rui finished speaking, he calmed down at the dinner table. No one made a sound. Everyone was in shock. Chen Rui's analysis was not bad at all!
This guy is really a ghost, otherwise how did he know?
"As a trainer, these shortcomings are harmless. However, as a performance machine, some actions such as vertical climbs are not very exciting. It is suitable for formation performances, not for stand-alone performances." Chen Rui continued Analyzed.
The Red Arrows aerobatic team relies on multi-aircraft formations, especially the 9-aircraft formations, which dazzles the audience through various complex formations and achieves shocking effects. However, if it is a stand-alone aircraft, it is not worth seeing.