Hi all
Fisrt of all I'm quite new to Boeing, as I'm a real Airbus enthusiastic , but due to the lack of A320 hardcore addon, I decided to give it a go on the pmdg b777 which for me the B777 is the Boeing Aircraft I can fly ( philosophy much closer to an airbus ). this B777 from PMDG is just ...... there is no word to describe it. I hope one day PMDG will do an A320 .
I started to read the B777 FCOM and the FBW is close to the Airbus A320 one, except the fact that you need to trim manually in speed changes ( speed stability). But I noticed that the B777 autotrim and keep the flight path perfectly even if the speed was decreasing, shouldn't the vesrtical speed decrease when the speed is decreasing as you need to manually trim the aircraft ? But sometimes it doesn't autotrim in speed changes which is the correct behaviour, but how does the priority work ??: I mean even if i trim the aircraft in speed changes, then the auto trim " takes the control " resulting with some " little oscillation", so in speed chnages does the pilot have fully control of the THS ?? becasue it seems that the FBW always change the trim value in speed changes, So i don't know if PMDG have correctly simulated this behaviour with all due respects.
Last thing, at take off, the auto trim is frozen until approx 1000 Fts AGL, i have to always keep back pressure in order to maintain the flight path, this is not explain in the FCOM, so it don't know if it's the correct behaviour.
If somebody can explain me how the B777' FBW works,i'd appreciate
Thank you
regards
CMB
