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公开(公告)号:US6089502A
公开(公告)日:2000-07-18
申请号:US96464
申请日:1998-06-12
申请人: Larry L. Herrick , C. Byram Bays-Muchmore , Michael S. Hoffman , Louis L. LeGrand , Steven S. Ogg , Bernard P. Paul, Jr. , Kenneth D. Visser , Stephen L. Wells
发明人: Larry L. Herrick , C. Byram Bays-Muchmore , Michael S. Hoffman , Louis L. LeGrand , Steven S. Ogg , Bernard P. Paul, Jr. , Kenneth D. Visser , Stephen L. Wells
CPC分类号: B64C3/10 , B64C23/065 , Y02T50/12 , Y02T50/164
摘要: An airplane having a fuselage (11), opposed main wings (12), and blunt-leading-edge raked wingtips (8) is provided. Each main wing includes an outboard end (9) and a leading edge (14) having an outboard end leading-edge nose and nose radius. One blunt raked wingtip (8) is located at each main wing outboard end (9) and includes a leading edge (20) swept back from the main wing leading edge (14). Each blunt raked wingtip (8) further includes a plurality of local airfoils each having a leading-edge nose radius and a chord. The nose radius is greater than about 2% of the local chord for the majority of the airfoils. The relative bluntness of the raked wingtips minimizes boundary-layer separation, drag associated with boundary-layer separation, and premature buffeting of the aircraft during low speed flight.
摘要翻译: 提供具有机身(11),相对的主翼(12)和钝头前缘的倾斜翼尖(8)的飞机。 每个主翼包括外侧端部(9)和前缘(14),前缘(14)具有外侧端部前缘鼻部和鼻部半径。 一个钝的倾斜翼尖(8)位于每个主翼外侧端(9),并且包括从主翼前缘(14)向后扫掠的前缘(20)。 每个钝角的翼尖(8)还包括多个局部翼型件,每个翼型件具有前缘的前半径和弦。 大多数机翼的鼻子半径大于当地和弦的约2%。 倾斜翼尖的相对钝度使边界层分离,边界层分离相关的阻力和飞机低速飞行过早的震动最小化。
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公开(公告)号:US06845944B2
公开(公告)日:2005-01-25
申请号:US10411682
申请日:2003-04-11
申请人: C. Byram Bays-Muchmore , Todd B. Brouwer , Malcolm S. Bryant , Warren D. Burggraf , Daniel S. Little , Douglas G. Miller , Stanley E. Tolzmann , Martin M. Withington , Thomas A. Zierten
发明人: C. Byram Bays-Muchmore , Todd B. Brouwer , Malcolm S. Bryant , Warren D. Burggraf , Daniel S. Little , Douglas G. Miller , Stanley E. Tolzmann , Martin M. Withington , Thomas A. Zierten
IPC分类号: B64C25/00
CPC分类号: B64C25/00 , B64C2025/005
摘要: Multi-positional tail skid assemblies and methods for their use. In one embodiment, a multi-positional tail skid assembly includes a skid member and a skid deployment system operably connected to the skid member. The skid member can include a first portion attachable to an aft portion of a fuselage and a second portion movable relative to the aft portion of the fuselage. The second portion can support a skid surface configured to contact a surface of a runway. The skid deployment system can be configured to move the skid surface between first and second positions. When the skid surface is in the first position, the skid surface is closer to the aft portion of the fuselage than when the skid surface is in the second position.
摘要翻译: 多位置的防滑装配及其使用方法。 在一个实施例中,多位置的滑行组件包括滑动构件和可操作地连接到滑动构件的防滑部署系统。 防滑构件可以包括可附接到机身的后部的第一部分和可相对于机身的后部部分移动的第二部分。 第二部分可以支撑配置成接触跑道表面的滑动表面。 防滑部署系统可以被配置为在第一和第二位置之间移动防滑表面。 当滑动表面处于第一位置时,与滑动表面处于第二位置相比,滑动表面更靠近机身的后部。
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