literal Translation:
Eastern net on May 17th news: Other day the Chengdu science and technology which conducts in Chengdu unfolds, became flies the group displays one novel " the owlet dragon " the airplane model. This model and now everybody sees " the owlet dragon " the airplane is different, its air intake used is similar to American F-35 the fighter aircraft DSI design (non- boundary layer partition board). This kind of design merit lies in the structure is simple, reduces the weight, reduces the resistance, but to processes the ability request is higher. This model airplane serial number is 04, this makes the one guess whether will originally plan to at the beginning of this year test flight 04 " the owlet dragon " improves after the design carries on again flies? Under is the net friend to this airplane commentary, transfers slightly builds the discussion forum from the aviation, the author 当头 one brick: This 04 models appearance, may say was most in the last few years one rare stir, the effect even flies compared to initially FC-1 fiercely. This is because is unexpectedly official on 04 models -like uses the present most advanced DSI design. The very many friends possibly not completely understand the airplane the air operated design, in the airplane air operated design, the air intake design is one most essential part. The air intake designs the most main goal, is lets the engine as far as possible obtain the best working condition under airplane all airborne conditions, but from the ground to the upper air, from 0 to each second 500 meter above speed, the air change is extremely complex, the air intake only can achieve the ideal value in some best region, but other conditions are compromise. In the air intake design concept, has one very important target: 总压恢复. This target and the engine real thrust force has the direct relations, in general, 总压恢复 each are few 1%, the motor power loses 1.2%. Regarding the fighter aircraft design, as far as possible reduces the air intake 总压损失, is equal to enhances airplane thrust ratio. We know, confidentially starts to enhance 5-6% thrust force under the weight invariable situation causes extremely difficultly, specially regarding certain engine horizontal low countries, enhances the air intake design horizontal significance obviously one spot. In on international, the airplane air intake designs every 10 years can make one huge progress, two generation of machine models 斜板 the compression evolved to the F-16 organism 机腹 precompression, the F-22 appearance air intake application appears 乘波 machine the technology, at that time the technical name was called the caret air intake, in fact was 2 Yuan 乘波 concepts. After that F/A-18e/F also used this kind of design air intake. Indicates according to the American fiaa paper, when in Mach 0.8, the new design air intake 总压恢复 enhanced 1.3%, Mach when 1.8 enhanced 5%, simultaneously the structure for was still fixed cannot adjust the air intake, in the weight certainly has no increase. Around 2000, the F-35 appearance unfolded the new one 代进 gas channel design progress, 3 Yuan 乘波 did not have 障 the boundary layer air intake, the DSI technology appearance symbolized 乘波 machine the concept from 2 dimensions horizontal enhancements to 3 dimensions levels. Simultaneously the boundary layer processing structure which has not been able to solve 2 Yuan air intakes one and solves, this was the newest generation of technology.
Eastern net on May 17th news: Other day the Chengdu science and technology which conducts in Chengdu unfolds, became flies the group displays one novel " the owlet dragon " the airplane model. This model and now everybody sees " the owlet dragon " the airplane is different, its air intake used is similar to American F-35 the fighter aircraft DSI design (non- boundary layer partition board). This kind of design merit lies in the structure is simple, reduces the weight, reduces the resistance, but to processes the ability request is higher. This model airplane serial number is 04, this makes the one guess whether will originally plan to at the beginning of this year test flight 04 " the owlet dragon " improves after the design carries on again flies? Under is the net friend to this airplane commentary, transfers slightly builds the discussion forum from the aviation, the author 当头 one brick: This 04 models appearance, may say was most in the last few years one rare stir, the effect even flies compared to initially FC-1 fiercely. This is because is unexpectedly official on 04 models -like uses the present most advanced DSI design. The very many friends possibly not completely understand the airplane the air operated design, in the airplane air operated design, the air intake design is one most essential part. The air intake designs the most main goal, is lets the engine as far as possible obtain the best working condition under airplane all airborne conditions, but from the ground to the upper air, from 0 to each second 500 meter above speed, the air change is extremely complex, the air intake only can achieve the ideal value in some best region, but other conditions are compromise. In the air intake design concept, has one very important target: 总压恢复. This target and the engine real thrust force has the direct relations, in general, 总压恢复 each are few 1%, the motor power loses 1.2%. Regarding the fighter aircraft design, as far as possible reduces the air intake 总压损失, is equal to enhances airplane thrust ratio. We know, confidentially starts to enhance 5-6% thrust force under the weight invariable situation causes extremely difficultly, specially regarding certain engine horizontal low countries, enhances the air intake design horizontal significance obviously one spot. In on international, the airplane air intake designs every 10 years can make one huge progress, two generation of machine models 斜板 the compression evolved to the F-16 organism 机腹 precompression, the F-22 appearance air intake application appears 乘波 machine the technology, at that time the technical name was called the caret air intake, in fact was 2 Yuan 乘波 concepts. After that F/A-18e/F also used this kind of design air intake. Indicates according to the American fiaa paper, when in Mach 0.8, the new design air intake 总压恢复 enhanced 1.3%, Mach when 1.8 enhanced 5%, simultaneously the structure for was still fixed cannot adjust the air intake, in the weight certainly has no increase. Around 2000, the F-35 appearance unfolded the new one 代进 gas channel design progress, 3 Yuan 乘波 did not have 障 the boundary layer air intake, the DSI technology appearance symbolized 乘波 machine the concept from 2 dimensions horizontal enhancements to 3 dimensions levels. Simultaneously the boundary layer processing structure which has not been able to solve 2 Yuan air intakes one and solves, this was the newest generation of technology.