Airbus fbw, Boeing fbw and F-18 fbw
Thanks FCeng84
Time to recover this thread!
I have been looking at these subjects again, and I have some questions. I have read a bit about the B777 FCS, as well as that of the F-18. I have even found that Airbus fbw family uses a C* law, blending some pitch rate demand at low speeds, too. However in the FCOM only load factor is mentioned.
I am most interested in the difference between the pilot-FCS interfaces.
In the Airbus the stick as absolutely no other force than that of the springs. It is spring loaded to neutral.
In the F-18 it is the same, I think, but I am not 100% sure. In normal flight it uses a C* law, too. At low speeds during approach it uses an Angle of Attack demand, (similar to that of the Airbus when in the alpha-prot range, I suppose) with a trimmable neutral stick reference angle of attack, for "on speed" trimming.
The 777 is proving the most difficult to understand. My first question is:
In the B777, is the control column spring loaded to neutral?
thanks