China’s domestic air marshals -200 disclosed two AWACS flight details of special situations
Air Police -200 AWACS taking off
200 air marshals, flight crew (left to Sun Meng library, second from left is Liu Yan, left three years for the clean).
plus conversion work site.
200 test flight air marshals, chief engineer Zhu Zengke (fourth from left) won the” flight monument Award. ”
Duchun Jiang Wen Liu Qidong Du Chunjiang Photography
60th anniversary of the grand parade, led by the air 200 air echelon of the police force through the sky Gate Square, solemnly accepted the party and the country review This will make people boil, the world’s attention. Institute of AVIC flight 200 flight air marshals fly the national team in person eagle, bear the task of aircraft flight test pilot who affectionately say: We see this aircraft as his “children”, which parents would not find it too their children, even if there is such in which he grew up as the shortcomings and inadequacies. It is precisely because such patience and care, it is this dedication to the cause of the motherland air, which makes the 200 air marshals finally out of the shadows, the rise in the Republic of blue sky.
test is a responsibility and attitudes
air marshals to complete 200 test flight in the shape of the domestic transport aircraft by far the most complex, the largest risk a series of test tasks, can be said that every flight in which little progress in breaking its record, creating the first. Test, it would be tempered into a steel, it would cast the sky lever.
hospital flight from the angle of the overall development of flight through the air marshals 200 subjects the risk of flight, can trip a trip to the risk of large aircraft flight path. Meanwhile, in practice, training and the training team. Court has previously conducted flight 500 cargo and transport 7-200A, Win 7-200B of the stall test, there is a certain reserve of skills and experience, not the uncertain war. Test the determination of what all the controversy becomes how to efficiently implement, we started a war for well-prepared test.
Liu Yan is a bit upright in Shandong man, talkative, love to laugh, what is not installed exterior looks. In fact, he worked with and people know he’s a fine person. Fought in the front flight of nearly 20 years, he had three models test, and fulfilled key model test mission, not only the flight of skilled and work very precise. Cheap joint flight crew’s pilot years, the air mechanic Sun Meng libraries are also very experienced “battlefield veteran.” Later, the flight proved that this is a reasonable and good with their proper disposal of several major air, land danger, to avoid a number of serious accidents. They not only saved the aircraft, the aircraft also continue to improve, improve, and eventually mature to play a huge role.
perform tasks in a few nights before we toss it difficult to sleep. They remembered the oath in the tomb of the martyrs, “is, ah, we engaged in a sacred cause, our courage to open the first of its kind China Airlines, we fly in strong national defense, for the rejuvenation of the nation while flying, there is nothing This is more glorious and noble it! “
risk subjects throughout the test, is a constantly find problems, problems continue to” zero “process. In order to test the aircraft has completed the risk status of subjects, involved in the tests in the first phase of flight, the test subjects are not limited to the risks, but to the entire aircraft platform again, “carpet” type of flight inspection, and all the data were analyzed one by one, quite a huge amount of work.
test system according to statistics, the risk of air marshals 200 test subjects a year since the hospital opened only in the analysis of flight commenting on as many as 130 times, which mainly occur in the test to solve a variety of problem. Early, because we know the problem of non-uniform, often win the “blush”, the total division of the joke to get a few words: We are in the process from confrontation to cooperation. With the exposure and solve problems one by one, we gradually come together and focus to consider how to efficiently solve the problem. In the test process, although a variety of setbacks and frustrations encountered, but we have a kind of indomitable strength. Because everyone’s mind is the same, are aimed at the development of aircraft, for completion of the task force as soon as possible in order to get qualified, effective equipment.
calm between life and death
200 air marshals on the flight risk group in terms of test subjects, along the way there are too many unknown factors, flight crew with emotion, said: “This flight is really step by step to fight over.”
2008 New Year’s Day before the last flight day, the joint flight crew before take-off during take-off line to complete the final inspection , the driver stepped on the gas, air marshals loud roar of 200 aircraft began to roll. Ground minimum control speed is a big risk subjects, flight test pilot in the right key to turn off the fourth aircraft engine, in this extreme state of the aircraft performance testing. Aircraft roll acceleration produced a dramatic sudden deflection angle to the right side of the grass runway rushed outside. At this point the left pilot is handle the steering wheel, left foot rudder hard Dengzhe, there is no ability to change the state of the aircraft to the speed of the aircraft, runway, serious accident, which is an instant thing!
in the nick of time, right-hand drive Liu Yan of “Muzzle” like speed quickly pull the rudder control switches to control the foot position, the aircraft was an instant response, said that at that moment, nose “shabu” about turn left to go left on the runway of a semi-circular wheel track. Subsequently, the two co-test pilot, the aircraft under control.
test pilot the aircraft slowly towards the “accident” scene, they saw the plane away from the edge of the closest runway is less than 2 meters. If the response to Liu Yan at 0.01 seconds, the aircraft will certainly out of runway.
site, it could also observe the occurrence of the serious danger to the aircraft along with flight test homes GDSA (ground constant monitoring system), others because of the time is too short, almost on the plane do not know come back the airport is always calm, as if nothing has happened. However, our test pilot, and death have been played just a face to face. More people are scared, they worry about test pilots, but also for the aircraft concerned. Test pilot who is rather calm, came back still talking and laughing. In fact, we all know are aware that they are afraid of fear and talk, even more afraid of family worry.
problem occurred, the test subjects in the general division problem analysis by Zhu excitedly talked about the meeting: “Now the risk of flight must be interrupted, immediately inventory problem.” To this end, experts from around the country gathered in the ancient city of Xi’an, focus on this issue of the analysis. Subsequently, the unit became a expert research group, we work together, efforts to overcome this “stumbling block”, through research, finally found the problem, and effective solution to the problem.
and “death” and once again embrace
2009 年 4 月 10, is a test Institute 50th Anniversary Day before a flight. Day flight, the flight crew for all members of the joint, will be unforgettable. Because, today’s test flight, they and death, “kiss” again!
flight, when the aircraft close to the speed of rotation speed of the roll on the runway when the aircraft suddenly eight main wheels at the same time be “locking” (tire not turn). The weight of the aircraft with great speed of several hundred kilometers per hour, moment, machine under the smoke. The face of sudden danger, the test pilot who did not panic, but they must now make a life or death decision. If the takeoff, the speed is too large, the aircraft is bound to overrun. Then pull up the plane if, and only 3 engines work (one of the flight to turn off engines), combined with fast enough, will likely cause the aircraft to pull up; is to pull up, the aircraft will be insufficient because the rudder effect from After the state land is difficult to control.
At this point, the airport, people clearly saw the plane trailing smoke, everyone’s heart in his throat eyes, time seemed to have solidified. Now, no one can help test pilot, no one can rescue aircraft, life and death, success or failure, all the hands of test pilot their own hands.
not pull up the aircraft, the aircraft will be out of the runway, if you pull up, there is a chance the aircraft, “pull up!” Test pilots who made up my mind. Test pilot who is currently most promising aircraft to growth, they push the throttle, but the growth rate of the aircraft at this time is very difficult, because the ground and aircraft tire friction is too great.
aircraft on the runway literally dragged the tires rub out more than 130 meters away, and left on the runway a few deep black mark. Suddenly, the test pilot who came to hear the aircraft belly, “bang” sound muffled, the tire burst! No time, pull … …
at the moment, try to lift the front wheel test pilot, aircraft struggling to lift the nose, reduced tire friction with the ground a little, the speed of the aircraft slightly increased a little, test pilot pulled the plane determined. However, the aircraft’s speed, after all, is not enough, resulting in insufficient lift, a large body of the aircraft falls on the ground, two rear wheels, “Dun” in the runway. Test pilot who still maintains pull action, due to friction with the ground plane to further reduce the aircraft off the ground again, but then after the wheel and “Dun” on the runway, so one last look, had a plane on the runway up “6-hop,” Britain six times before finally at the end of the runway doggedly climbed the sky. On the runway, leaving traces of six deep, and this is death, “kiss” the mark!
aircraft engine as only three, coupled with lack of control surface effects, although into the sky, but it is still very difficult to manipulate. After takeoff, the aircraft has had a steep slope to the right side to go. The face of perilous situations, test pilot unit together, and finally stabilize the aircraft. As the height increases, the state of the aircraft more stable. Aircraft to leave the ground from the brake locking, a total of only 10 seconds, however, the crew members feel this is the longest life of 10 seconds. Any second, any mistake, any fear, will lead to unimaginable consequences. Their flight had been sweat soaked clothes.
a ground plane, the unit immediately start 4 rounds in preparation for landing. At this point, the tower by the solidification of a sudden just like to be “detonated”, we quickly split up into action, to create the best conditions for the landing. Ground air and ground commanders loudly informed immediately launched the emergency procedures and that planes low level passes twice, so that the state of the ground observation aircraft, especially the tire situation. First time passes, the aircraft height of 100 meters, but the ground did not see. Second passes, test pilots were under the cruel, the height from the ground plane is only 11 meters. Finally see the ground, tell the test pilot by radio, the left wheel puncture. This danger, the flight in the history of China is also unique. Aircraft aligned with the runway, ready to land the … … the ground, fire engines, ambulances and other emergency vehicles have been prepared to put in place.
aircraft to a gentle gesture, such as touching slide runway. Worthy of a seasoned crew, as the left tire flat tire, wheel them to the right side of the ground first, and keep the aircraft 2 degrees of tilt. Aircraft, two pilots work together to jointly hold the aircraft attitude, the pilot reported that speed, engine air mechanic reported that the state, with quite understanding. When the aircraft is stable, before the aircraft revolvers they gently down the plane “soft landing” success, safety of the aircraft, they fight back! At the time, is vice president of GE test site test of peace and the vice president rushed to the plane Guo ordinary next, when the crew off the plane, everyone’s stingy clenched together. At this point, we have no more words, holding on so tightly, like a release will lose, as everyone’s eyes all filled with tears.
investigation and analysis of emergency after all, the problem will soon be effectively addressed. Soon after, police units and driving an empty blue sky ride 200 aircraft, continue to test mission.
provide security for the National Day parade
test pilots are doing on the ground minimum control speed test found that with 25 degree flaps for take-off configuration aircraft rudder correction capacity is insufficient. 60th anniversary parade troops at exercise is to use 25 degrees flaps for takeoff. Although the forces in peacetime exercises without closing 4 rounds, but not necessarily stop the engine, but once the stop, the consequences will be very serious. If it is the National Day parade was a problem, the consequences even more disastrous.
this situation, hospital recommended test configuration for flaps 15 degrees off, because in this configuration, the aircraft’s landing speed from the relatively large, the aircraft can have a larger rudder correction capability, so that a test pilot in the engine stop, the aircraft have some yaw attitude of the case hold. Also, because the speed of larger aircraft, reducing the wind resistance, in the event of unforeseen circumstances, the aircraft has missed capabilities. In addition, if the aircraft after the plateau, high temperature case the flight, taking off with flaps 25 degrees, due to the thin air, further reducing the rudder effect, combined with the aircraft speed is not enough, the manipulation of the aircraft to bring more adverse effects, if unexpected, accidents are inevitable.
for a people who work in the flight test, if he knows the aircraft in question still indifferent, he would never be a real test of people. On this issue, test pilot and flight engineer’s position is very clear, to the state should be responsible for the forces responsible attitude and firmly called for air marshals to take off 200 configuration with 15 degrees flaps, especially for the upcoming National Day military parade there is even one ten thousandth of the risks, but also firmly ruled out, otherwise, each participating personnel will not sleep at ease.
flight systems and aircraft systems design and analysis of communication repeatedly demonstrated and held a special technique will be assessed. Proposed test system, 15-degree takeoff configuration is very important configuration is a “safe” configuration, air marshals must be used 200 aircraft to 15 degrees off flap configuration. At the meeting, the parties recognized test expert system recommendations. Parade troops finally took off with 15 degree flap configuration, test people’s heart has finally put down.
test not only in a battle broke out
to complete the flight mission, flight test techniques set up a hospital, test conversion, data processing, maintenance protection 13 professional group, the division of labor to various professional groups of people, responsibility to the people, constitutes a strict top-down organizational system.
subjects at risk of flight 200 air marshals, the flight test engineers is a particularly strong team, they not only have to fully understand the test mission, the aircraft should be familiar with the basic performance, use of data and scientific analysis support the flight test work, the pre-sentence test process. Every morning, flight test engineers will be bathed in the dawn approaching, participate in the task assigned, make test points. Commented after the flight for them is no time limit, and dry to the RCH two points of the day. After each flight, they quantitative, qualitative analysis of the subjects, the test pilot of the issues raised systematic explanation. After the flight, they have to deal with timely analysis of the data for the next day’s flight to provide accurate data to support. In flight, the flight test engineers have to bear tremendous pressure, the aircraft one God, they will “stare” at the ground control room, if you have any questions or aircraft crossed the envelope, they should be a timely reminder. Every day, planes God, also followed their hearts to hang up until the plane landed, their hearts to “fall.” The risk of flight 200 air marshals, researchers processed the data, the data printed paper every day more than 10 cm thick, may be useful for the real test is one of two or three sheets, but they must be able to endure loneliness and boring, with a strict work attitude did not miss any doubt, for the flight to provide the most reliable technical support.
subjects at risk of air marshals, flight 200, there are two very important and very effective fighting force, they are modified flight test hospital security team and maintenance team. As a special aircraft, air marshals 200 test aircraft modification amount is very large, with a huge project to describe is not excessive.
complete test mission, the aircraft’s speed is a direct relationship between the flight safety and mission success or failure of the important parameters. For the accurate measurement of airspeed, flight test modifications hospital staff before the installation of an aircraft nose up to 7 meters before the pole for the installation of sensors and other systems. This is a very difficult project, modification work should take full account of the aircraft itself is not part of the air interference at the same time, the first pole of strength, stiffness and vibration problems before the pole itself is very difficult to make the conversion work. Concentration of the relevant hospital unit test the strength and wisdom in a short time to find an effective way, well done the task, to ensure that the task node. In addition, to better grasp the state of the aircraft, aircraft landing gear test on the staff also modified the installation of a dedicated camera. To effectively measure the trajectory of the aircraft, testers also used ground optical theodolite and other special equipment, and using the air with flying, etc., to increase information gathering strength for the tasks to provide a strong data and information support.
throughout the flight mission, the crew every day for the aircraft maintenance check flight, if a problem, they must be timely troubleshooting, often the night work. Whether it is winter, summer, air marshals 200 a God is often four to five hours long held out on the crew field, their cause and ideals, along with 200 air marshals fly.
tears of victory is a declaration
risk of flight through the baptism of 200 air marshals finally become a type of performance to create good quality, safe and reliable new aircraft.
task is completed, all participating personnel in gathering together, we must make a 60-year-old test pilot, said the two, he thought for a moment said: “We flew today too is not easy. task is completed, the aircraft still, people are still, we won! “Here, the years highlighted the danger, particularly strong test pilot, and finally could not suppress his excitement, crying uncontrollably! The presence of people who have hugged together and cried into a! Such feelings, only to fight together, fight together, common frustration, happiness is too common people can understand.
body 200 from the air marshals, we again see the importance of developing the national aviation industry, because no country will not sell this to our aircraft and technology, independently developed, is the only way . The development of national aviation industry, and we would face enormous difficulties and challenges, must be an iron will and indomitable spirit of hard work, go rattling in the goals.