J20 uses Fly-By-Optical system

[badguy2000]

well, According to CD, what J20 uses is not Fly-By-Wire (FBW) system ,but fly-by optical system.

the following is the quoted from CD.

here are the digestions:
1. J20 now uses fly-by-optical(FBO) system,instead of FBW system.
2. FBO is one generation ahead of FBW system.
3. the R&D of FBO was started by Yankees in 1975. but the tech didn't get mature until 2000.
Yankees started to apply FBO tech to some birds such as B2,F22 and last model of F16 after 2000.

http://lt.cjdby.net/thread-1082006-1-1.html
传操纵系统
　　什么是光传操纵系统： 　　光传操纵系统是以光代替电作为传输载体，以光导纤维作为物理传输媒质，在计算机之间或计算机与远距离终端（如舵机等）之间传递指令和反馈信息的飞行控制系统。光传操纵系统是在电传操纵系统上发展起来的，也是后者的发展趋势。电传操纵系统的致命弱点是易受雷电和电磁干扰及核辐射的影响。现代飞机性能不断提高，电子设备日趋复杂，这必然导致电缆用量的增加以及线路布局的复杂化，从而加大了线路之间的干扰，使电传操纵系统不能正常工作。解决这一问题的根本办法就是采用光传操纵系统。 　　采用光纤作为传输介质，以光信号的形式传输，使得光传操纵系统具有很多优点。首先，它具有抗电磁干扰、抗电磁脉冲辐射和防雷电等特点，且光纤本身不辐射能量，这就提高了可靠性和安全性。其次，光缆可减轻控制系统的重量、缩小体积，从而大大改进飞机的稳定性和可操纵性。再次，光纤的故障隔离性好，当一个通道发生故障时不会影响其他通道。光传操纵系统的研究始于上个世纪70年代。1975

 

[nrj]

Why new thread is required for every J20 related news??

----

FBOs are good, keeps you safe from EM attacks & reduce some weight.

So which SMOF you are using?

Fiber optic gyroscope using single mode suffers major drawback of polarization fluctuations resulting in fading.

 

[Vladimir79]

ROFLs... China can't even make a full FBW plane and now they are on FBO. The comedy continues...

 

[sayareakd]

Uploaded with ImageShack.us

then what is this if the plane fly by optics.