[比较]歼10和F-35B的侧风起降能力

来源:百度文库 编辑:超级军网 时间:2024/04/20 16:10:53
首先转一条消息,洛马公司的,F-35B BF-4在爱德华兹完成湿跑道和侧风测试:
链接:http://www.lockheedmartin.com/us ... runway-testing.html
要点:总的来说,F-35B型可在20kt(37km/h)横风下完成常规起降(CTOL)、短距起飞(STO)和短距着陆(SL),并具有理想的操纵品质等级,与四代机相比具有重要提升
原文:F-35B Successfully Completes Wet Runway And Crosswind Testing   
F-35B aircraft BF-4, piloted by Lockheed Martin Test Pilot Dan Levin, starts down the runway as part of wet runway and crosswind testing at Edwards AFB, California. Lockheed Martin photo by Tom Reynolds.
FORT WORTH, Texas, July 30, 2014 – In an important program milestone enabling U.S. Marines Corps Initial Operational Capability (IOC) certification, the Lockheed Martin [NYSE: LMT] F-35B recently completed required wet runway and crosswind testing at Edwards Air Force Base, California.
“This testing is absolutely critical to 2B flight software fleet release and the Marine Corps’ IOC,” said J.D. McFarlan, Lockheed Martin's vice president for F-35 Test & Verification. “Collectively, the results support clearing the 20 knot crosswind envelope for Conventional Take Off & Landings (CTOL), Short Take Offs (STO) and Short Landings (SL), with ideal handling quality ratings and meaningful improvement over legacy 4th generational fighter aircraft.
The testing, completed in 37 missions during a 41-day period, achieved 114 test points, including  48 of 48 wet runway test points, four of four performance STOs, 12 of 18 unique flight test conditions for STO, 19 of 23 unique flight test conditions for SLs and all directional control and anti-skid wet runway testing. All testing was performed with BF-4, based at Naval Air Station Patuxent River, Maryland.
In other achievements, four aircraft surpassed flight hour milestones, demonstrating program maturity and reliability: F-35C aircraft CF-1 and F-35A aircraft AF-4 achieved 500 flight hours, and F-35C aircraft CF-5 achieved 100 flight hours.
The F-35 Lightning II, a 5th generation fighter, combines advanced low observable stealth technology with fighter speed and agility, fully fused sensor information, network-enabled operations and advanced sustainment.
Three distinct variants of the F-35 will replace the A-10 and F-16 for the U.S. Air Force, the F/A-18 for the U.S. Navy, the F/A-18 and AV-8B Harrier for the U.S. Marine Corps, and a variety of fighters for at least 10 other countries. Following the U.S. Marine Corps’ planned July 2015 IOC, the U.S. Air Force and Navy intend to attain IOC in Aug. 2016 and 2018, respectively.
Headquartered in Bethesda, Maryland, Lockheed Martin is a global security and aerospace company that employs approximately 113,000 people worldwide and is principally engaged in the research, design, development, manufacture, integration and sustainment of advanced technology systems, products and services. The Corporation’s net sales for 2013 were $45.4 billion.首先转一条消息,洛马公司的,F-35B BF-4在爱德华兹完成湿跑道和侧风测试:
链接:http://www.lockheedmartin.com/us ... runway-testing.html
要点:总的来说,F-35B型可在20kt(37km/h)横风下完成常规起降(CTOL)、短距起飞(STO)和短距着陆(SL),并具有理想的操纵品质等级,与四代机相比具有重要提升
原文:F-35B Successfully Completes Wet Runway And Crosswind Testing   
F-35B aircraft BF-4, piloted by Lockheed Martin Test Pilot Dan Levin, starts down the runway as part of wet runway and crosswind testing at Edwards AFB, California. Lockheed Martin photo by Tom Reynolds.
FORT WORTH, Texas, July 30, 2014 – In an important program milestone enabling U.S. Marines Corps Initial Operational Capability (IOC) certification, the Lockheed Martin [NYSE: LMT] F-35B recently completed required wet runway and crosswind testing at Edwards Air Force Base, California.
“This testing is absolutely critical to 2B flight software fleet release and the Marine Corps’ IOC,” said J.D. McFarlan, Lockheed Martin's vice president for F-35 Test & Verification. “Collectively, the results support clearing the 20 knot crosswind envelope for Conventional Take Off & Landings (CTOL), Short Take Offs (STO) and Short Landings (SL), with ideal handling quality ratings and meaningful improvement over legacy 4th generational fighter aircraft.
The testing, completed in 37 missions during a 41-day period, achieved 114 test points, including  48 of 48 wet runway test points, four of four performance STOs, 12 of 18 unique flight test conditions for STO, 19 of 23 unique flight test conditions for SLs and all directional control and anti-skid wet runway testing. All testing was performed with BF-4, based at Naval Air Station Patuxent River, Maryland.
In other achievements, four aircraft surpassed flight hour milestones, demonstrating program maturity and reliability: F-35C aircraft CF-1 and F-35A aircraft AF-4 achieved 500 flight hours, and F-35C aircraft CF-5 achieved 100 flight hours.
The F-35 Lightning II, a 5th generation fighter, combines advanced low observable stealth technology with fighter speed and agility, fully fused sensor information, network-enabled operations and advanced sustainment.
Three distinct variants of the F-35 will replace the A-10 and F-16 for the U.S. Air Force, the F/A-18 for the U.S. Navy, the F/A-18 and AV-8B Harrier for the U.S. Marine Corps, and a variety of fighters for at least 10 other countries. Following the U.S. Marine Corps’ planned July 2015 IOC, the U.S. Air Force and Navy intend to attain IOC in Aug. 2016 and 2018, respectively.
Headquartered in Bethesda, Maryland, Lockheed Martin is a global security and aerospace company that employs approximately 113,000 people worldwide and is principally engaged in the research, design, development, manufacture, integration and sustainment of advanced technology systems, products and services. The Corporation’s net sales for 2013 were $45.4 billion.


比较歼10的数据,侧风降落能力原设计指标是21.6km/h(6m/s),张景亭试飞员第一次飞这个就飞到32.4km/h(9m/s),后来何斌斌试飞员飞到50.4km/h(14m/s)
何斌斌后来编写了《大侧风飞行方法》,“歼-10的抗侧风性能成倍数增加”。
数据和信息来源于百度,提供两个链接,自寻:
链接1:http://www.wangchao.net.cn/bbsdetail_814127.html
        ( “中华”的天空:试飞英雄李中华最新采访)
链接2:http://bbs.tiexue.net/post2_2307542_1.html
        (曝光:中国新歼-10海军型+第四代战机计划揭密!)

几点看法:
(1)仅从数据来看,现在歼10的侧风降落能力至少不比F-35B差——以最初设计指标21.6km/h(6m/s)为基础成倍增加,则最少达到43.2km/h(12m/s);
(2)但是,进一步比较,有可能还需要更多的数据,例如双方起降对应的构型、重量;
(3)侧风起降能力影响在各种自然条件下运用和回收飞机,但只要达标了,不影响战术技术性能,F-35B无疑是更新一代的战斗机。

比较歼10的数据,侧风降落能力原设计指标是21.6km/h(6m/s),张景亭试飞员第一次飞这个就飞到32.4km/h(9m/s),后来何斌斌试飞员飞到50.4km/h(14m/s)
何斌斌后来编写了《大侧风飞行方法》,“歼-10的抗侧风性能成倍数增加”。
数据和信息来源于百度,提供两个链接,自寻:
链接1:http://www.wangchao.net.cn/bbsdetail_814127.html
        ( “中华”的天空:试飞英雄李中华最新采访)
链接2:http://bbs.tiexue.net/post2_2307542_1.html
        (曝光:中国新歼-10海军型+第四代战机计划揭密!)

几点看法:
(1)仅从数据来看,现在歼10的侧风降落能力至少不比F-35B差——以最初设计指标21.6km/h(6m/s)为基础成倍增加,则最少达到43.2km/h(12m/s);
(2)但是,进一步比较,有可能还需要更多的数据,例如双方起降对应的构型、重量;
(3)侧风起降能力影响在各种自然条件下运用和回收飞机,但只要达标了,不影响战术技术性能,F-35B无疑是更新一代的战斗机。
the results support clearing the 20 knot crosswind envelope for CTOL , STO , SL. 歼十也学会侧风短距起降?
战斗机械 发表于 2014-7-31 13:47
the results support clearing the 20 knot crosswind envelope for CTOL , STO , SL. 歼十也学会侧风短距 ...
CTOL是啥?
CTOL是啥?
常规起降。
横竖撇捺 发表于 2014-7-31 13:54
常规起降。
和啥比不好非得和F35B这个型号比常规起降能力,有点儿吊架而已。
战斗机械 发表于 2014-7-31 14:01
和啥比不好非得和F35B这个型号比常规起降能力,有点儿吊架而已。
并没有证据表明F-35B这种具备短距垂直起降能力的战斗机,在常规起降状态下的抗侧风能力会比只能常规起降的战斗机要差。
F-35B在常规起降模式下抗侧风的操纵控制并不需要使用垂直起降功能部件,再考虑到设计和这块飞控的通用性,它的抗侧风能力应该和F-35A是一样的。
鹰扬北京 发表于 2014-7-31 18:35
并没有证据表明F-35B这种具备短距垂直起降能力的战斗机,在常规起降状态下的抗侧风能力会比只能常规起降 ...
你没看到F-35B这个数据是三种模式都能进行的数据么?
鹰扬北京 发表于 2014-7-31 18:35
并没有证据表明F-35B这种具备短距垂直起降能力的战斗机,在常规起降状态下的抗侧风能力会比只能常规起降 ...
应该有一点区别,以为机头后方增加了风扇导致截面积增大,影响航向稳定性

laser911 发表于 2014-7-31 21:09
应该有一点区别,以为机头后方增加了风扇导致截面积增大,影响航向稳定性


B型的座舱后方机身最大横截面积真的大于A型和C型吗?
我记得这三型的中央承力框部件是通用的。如果兄弟有证据,希望列出。
-------
刚找图看了一下,大概是座舱后正视的两个肩膀那有所凸出,看上去截面积更大。

但是这个是否对侧风容忍能力有影响,我认为还缺乏直接证据。
laser911 发表于 2014-7-31 21:09
应该有一点区别,以为机头后方增加了风扇导致截面积增大,影响航向稳定性


B型的座舱后方机身最大横截面积真的大于A型和C型吗?
我记得这三型的中央承力框部件是通用的。如果兄弟有证据,希望列出。
-------
刚找图看了一下,大概是座舱后正视的两个肩膀那有所凸出,看上去截面积更大。

但是这个是否对侧风容忍能力有影响,我认为还缺乏直接证据。
百臂巨人 发表于 2014-7-31 21:03
你没看到F-35B这个数据是三种模式都能进行的数据么?
我当然看到了。但这三种模式包括了常规起降啊。
我并不清楚常规起降模式对侧风的承受力是否一定高于短距起降模式,兄弟有无资料说明这点?
鹰扬北京 发表于 2014-7-31 21:23
我当然看到了。但这三种模式包括了常规起降啊。
我并不清楚常规起降模式对侧风的承受力是否一定高于短距 ...
侧风降落时,接地速度越小,机头需要偏斜的角度就越大。
短距降落是要难得多的。
百臂巨人 发表于 2014-7-31 21:28
侧风降落时,接地速度越小,机头需要偏斜的角度就越大。
短距降落是要难得多的。
兄弟,感谢你回帖。但这种简单的原理性分析,我自己也会的。
但是经验告诉我,要么有数学力学模型予以计算,要么有直接可信的信息证据,否则在工程上,这种简单的原理性分析得出的结论,真的未必靠谱。

如果只采用这种分析,让我们想想,美国海军陆战队是将大洋作为通路,将两栖攻击舰作为跳板,其在作战时飞机往往最终部署在陆地,而且经常是常规起降。海湾战争中和阿富汗的AV-8B都是这样。那么,一贯重视作战概念牵引战技指标和装备研制的美军,为啥不将F-35B的常规起降模式的横风承受能力测试与短距起降模式分开处理呢?因为其今后很大可能要经常使用常规起降模式。没有分开处理,是不是其实在其设计上、操作大纲上就是采取同一个限制值?
你看,我这段推论是不是也很有道理?
鹰扬北京 发表于 2014-7-31 21:39
兄弟,感谢你回帖。但这种简单的原理性分析,我自己也会的。
但是经验告诉我,要么有数学力学模型予以计 ...
因为船是可动的,如果侧风实在太大,调个头就行。
舰上短距起降对抗侧风能力的需求真的不大
其实许多军、民机都能摆脱其手册建议的横风限制起降。
比如F-15,建议的最大限制是30kt(55.56km/h),在嘉手纳基地也曾在35kt的横风中降落。但是该机在25kt及以上的横风中降落时,减速板打开角度被限定在不能超过10度。
F-16的最大降落横风限制是25kt(46.3km/h)左右,超过这个数据起降的例子也有。
现在就想看看F-35系列的数据到底是多少了。
百臂巨人 发表于 2014-7-31 21:42
因为船是可动的,如果侧风实在太大,调个头就行。
舰上短距起降对抗侧风能力的需求真的不大
恰恰相反,舰载机的抗侧风起降能力,是评价航妈战斗力的很重要的指标。。。