Modern day VTOL fixed-wing aircraft based on quadplane design is relative<span style="font-family:Verdana;">ly simple and reliable due to lack of complex mechanical components</span><span styl...Modern day VTOL fixed-wing aircraft based on quadplane design is relative<span style="font-family:Verdana;">ly simple and reliable due to lack of complex mechanical components</span><span style="font-family:Verdana;"> com</span><span style="font-family:Verdana;">pared to tilt-wings or tilt-rotors in the pre-80’s era. Radio-controlled </span><span style="font-family:Verdana;">aerobatic airplanes have thrust-to-weight ratio of greater than unity and are capable of performing a range of impressive maneuvers including the so-called harrier maneuver. We hereby present a new maneuver known as the retarded harrier </span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">that is applicable to un/manned fixed-wing aircraft for achieving VTOL flight with a better forward flight performance than a quadplane in terms of weight, speed and esthetics.</span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;"> An airplane with tandem roto-stabilizers is also presented as an efficient airframe to achieve VTOL via retarded harrier maneuver, and detailed analysis is given for hovering at 45° and 60° and comparison is made against the widely adopted quadplane. This work also includes experimental demonstration of retarded harrier maneuver using a small remotely pilot airplane of wingspan 650 mm.</span></span></span>展开更多
为提升我国两栖攻击舰远程攻击能力,对国外舰机适配性进行分析。分析国外短距/垂直起降飞机(short/vertical takeoff and landing,SVTOL)的技术现状,从舰船总体设计角度开展舰机适配性分析并提出关键技术,结合美国、日本、意大利的大型...为提升我国两栖攻击舰远程攻击能力,对国外舰机适配性进行分析。分析国外短距/垂直起降飞机(short/vertical takeoff and landing,SVTOL)的技术现状,从舰船总体设计角度开展舰机适配性分析并提出关键技术,结合美国、日本、意大利的大型两栖舰船具体分析舰载机上舰的改装工程。结果表明,该分析可为国内相关领域科研生产提供参考。展开更多
S/VTOL(short/vertical take-off and landing)战斗机用推力矢量喷管是飞机实现短距起飞垂直降落,摆脱对跑道的依赖,减小航母的设计难度,及显著提高飞机机动性能的关键技术,已成为第4代战斗机和战斗机用航空发动机的设计标志。结合不同...S/VTOL(short/vertical take-off and landing)战斗机用推力矢量喷管是飞机实现短距起飞垂直降落,摆脱对跑道的依赖,减小航母的设计难度,及显著提高飞机机动性能的关键技术,已成为第4代战斗机和战斗机用航空发动机的设计标志。结合不同时期推力矢量喷管的特征和不同战斗机对推力矢量的技术要求,对短距起飞垂直降落战斗机用矢量喷管的结构特点、工作原理及发展状况进行了归纳及总结。详细提出了S/VTOL战斗机用推力矢量喷管的关键技术,并对开展S/VTOL战斗机用矢量喷管技术研究提出建议。展开更多
文摘Modern day VTOL fixed-wing aircraft based on quadplane design is relative<span style="font-family:Verdana;">ly simple and reliable due to lack of complex mechanical components</span><span style="font-family:Verdana;"> com</span><span style="font-family:Verdana;">pared to tilt-wings or tilt-rotors in the pre-80’s era. Radio-controlled </span><span style="font-family:Verdana;">aerobatic airplanes have thrust-to-weight ratio of greater than unity and are capable of performing a range of impressive maneuvers including the so-called harrier maneuver. We hereby present a new maneuver known as the retarded harrier </span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">that is applicable to un/manned fixed-wing aircraft for achieving VTOL flight with a better forward flight performance than a quadplane in terms of weight, speed and esthetics.</span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;"> An airplane with tandem roto-stabilizers is also presented as an efficient airframe to achieve VTOL via retarded harrier maneuver, and detailed analysis is given for hovering at 45° and 60° and comparison is made against the widely adopted quadplane. This work also includes experimental demonstration of retarded harrier maneuver using a small remotely pilot airplane of wingspan 650 mm.</span></span></span>
文摘为提升我国两栖攻击舰远程攻击能力,对国外舰机适配性进行分析。分析国外短距/垂直起降飞机(short/vertical takeoff and landing,SVTOL)的技术现状,从舰船总体设计角度开展舰机适配性分析并提出关键技术,结合美国、日本、意大利的大型两栖舰船具体分析舰载机上舰的改装工程。结果表明,该分析可为国内相关领域科研生产提供参考。
文摘S/VTOL(short/vertical take-off and landing)战斗机用推力矢量喷管是飞机实现短距起飞垂直降落,摆脱对跑道的依赖,减小航母的设计难度,及显著提高飞机机动性能的关键技术,已成为第4代战斗机和战斗机用航空发动机的设计标志。结合不同时期推力矢量喷管的特征和不同战斗机对推力矢量的技术要求,对短距起飞垂直降落战斗机用矢量喷管的结构特点、工作原理及发展状况进行了归纳及总结。详细提出了S/VTOL战斗机用推力矢量喷管的关键技术,并对开展S/VTOL战斗机用矢量喷管技术研究提出建议。
