I was in Argentina test pilot helicopter air show special circumstances should
Song Yi and crew members to ready Zhou Jingbo photo
中广网 Beijing News on December 14 (Sun Jie Shi Yong Zhou Jingbo correspondent only) in early 2007, a helicopter factory to request the Department of General Staff of Army aviation, in order to develop a certain type of China-made helicopter international market, the need to send a test pilot to fly the model country performance, while teaching the pilot. Thus, the history of this difficult task fell on the Song Yi to lead the test pilot’s shoulder.
helicopter industry in China started late, but over the years in the joint efforts of the military and has made considerable progress. Today we made the helicopter will taken abroad, and success depends on its debut in Argentina. The A side of the helicopter’s performance made a near-stringent requirements, they made us appear to make the helicopter in the air in the case of failure to land safely. Special situations such as stopping the engine air is suddenly encountered a helicopter engine failure in flight loss of power, the helicopter pilot must manipulate to make spin moves down, the decline in the use of the rotor to provide lift during the rotation itself, reduce the speed of the helicopter down, and ultimately ensure the helicopter smooth landing. This special situation is dangerous in that first, because the helicopter flying at low altitudes, especially for test pilots to judge the situation very short time and then disposed of, if miscalculation or disposed of improperly, lost control of the helicopter in the air like a top general may quickly plunging to the ground; two fixed-wing aircraft, helicopters do not like the ejection equipment, test pilot in compelling circumstances can not be abandoned machine ejection parachute escape, only death and helicopters. Rotation of the helicopter landing performance test for ensuring flight safety is extremely important, but it is also a great danger of the test items need to research and test pilot through hard trials to determine the safety of the helicopter into the rotation of the height of the minimum and maximum rate of decline down from the other very important data, also need to test pilot with a cool head, quick action, in the engine stop 1-2 seconds after the helicopter into the rotation. Another example is the helicopter tail rotor failure of special circumstances, when the rotor drive shaft from the engine by rotating the rotation, the rotor to the air to torque, the air must at the same time equal and opposite reaction torque acting on the rotor, if not a balanced measures, then this will make the helicopter anti-torque rotor rotation direction of rotation reverse. Tail rotor is used to balance the anti-torque. Tail like a plane perpendicular to the rotor rotation speed of a small propeller plane, the reaction generated when the work through the arm to form a yaw, to balance the rotor of the anti-reverse. If the tail rotor fails, the helicopter can not remain stable, but fell to the ground spinning, test pilot must fall to the ground before the helicopter try to maintain good posture or the tail rotor spins up to normal.
the face of these requirements may seem cruel, Song Yijian be strong for everyone, said: “We are test pilots, that is, people do not do the action, others dare not fly flying subjects, we not only to simulate the engine air parking, tail rotor failure and other special circumstances, must also successfully disposed of only skilled practice today, and after leaving the country face a severe emergency situation, can be successfully saved the day. “dozens of consecutive days, he are at the airport bar, and a test pilot who studied the air every possible special disposal of dangerous conditions, which greatly improved the flight test techniques, exercise psychology.
year in March, Song Yi personally selected three test pilots to go to a country perform this task. However, in a flight training due to tail rotor pitch link off, resulting in a failure of tail rotor control major special conditions, the helicopter suddenly lost control of the direction. At that time, the Chinese test pilots a three command in the tower, one as captain, a second row of seats sat in the cockpit. Foreign pilots know what to do, he gave up a last effort, head in despair, and pray God bless. The cockpit in the second row in the shaking of the Chinese test pilot and helicopter pilot foreign exchange position, with his comrades in the country have mastered by the special circumstances disposal program, composure, calm, skilled in very critical The case was missed three times, and finally brought under control helicopter, landed safely at the airport. Foreign shocked by this scene, they had never imagined such a special situation actually really be ruled out. July 10, the helicopter in Argentina, held a grand closing flight demonstration, in solemn Chinese national anthem, the bright side of the flag fluttering in the wind in the air.