Re: JL-15 and other trainers
from here
From May of 2008, Hongdu finished NY9200GA resin system improvement, "pre-impregnated" composite fibres preparation, Laminated model workmanship testing and assessment, Model's composite missile wings and L-15's composite material static test case, passed 100% of design's static testing program with weapon load. L-15's tail uses multi-layer of composite material. Much compsoite material is used in the whole plane. After successfuly tests, Hongdu started using composites to horizontail tail and aileron. 25% of prototype 05 of L-15 uses composites. After successful implementation of this project, composite cost on L-15 is cut by half.
from here
L-15 project's carbon fiber composite tail has passed 100% of design requirement's static testing.“猎鹰”国产碳纤维复材垂尾通过静力试验
本报讯 9月29日,“猎鹰”L15国产碳纤维复合材料垂尾顺利通过100%设计载荷下的静力试验。
自去年5月开始,洪都公司先后完成了NY9200GA树脂体系的改性、预浸料的制备、层合板的成型工艺试验及性能测试,型号复合材料弹翼和L15高教机复合材料垂尾静力试验件的试制,并通过了100%设计载荷下静力试验的考核。L15飞机的垂尾采用复合材料多樯结构,在整机复合材料部件中应力水平最高。试验成功后,洪都将把碳纤维复合材料推广应用至平尾、副翼等部件。成功首飞的“猎鹰”05架试验样机的机体结构25%由复合材料制成,该项目顺利实施后,将为 “猎鹰”飞机复合材料构件节约一半成本。
From May of 2008, Hongdu finished NY9200GA resin system improvement, "pre-impregnated" composite fibres preparation, Laminated model workmanship testing and assessment, Model's composite missile wings and L-15's composite material static test case, passed 100% of design's static testing program with weapon load. L-15's tail uses multi-layer of composite material. Much compsoite material is used in the whole plane. After successfuly tests, Hongdu started using composites to horizontail tail and aileron. 25% of prototype 05 of L-15 uses composites. After successful implementation of this project, composite cost on L-15 is cut by half.