mechanism about differential spoilers
HI guys. Wanna ask for a detailed explanation about the mechanism of differential spoiler and non differential spoiler. How do them actually work? just get frustrated when i saw an expression below:
non differential spoiler:
speed brakes fully retracted:right spoiler extends
left spoiler remains retracted
speed brakes fully extended:right spoiler remains extended
left spoiler remains extended
speed brakes half extended:right spoiler extends further
left spoiler doesnt move
differential spoiler:
speed brakes fully retracted:right spoiler extends
left spoiler remains retracted
speed brakes fully extended:right spoiler remains extended
left spoiler retracts
speed brakes half extended:right spoiler extends further
left spoiler retracts
few questions about this statement:
here it was saying the difference between diff. spoiler and non-diff. spoiler is diff. spoiler retract and supplement roll control when speed brake is fully extended. however, if non-diff. spoiler doesnt contribute to roll control, why there is difference between right spoiler and left spoiler?(because of balancing P factor? I dont know just guess :P)
also why right spoiler needs to extend further when speed brake half extended?
is the situation of differential spoilers above talking about one direction roll movement or i am actually out of track?
Pls help!
i am a newbie on aviation as well as in this forum.sorry for my poor English and if i am posting it in a wrong place.
Thanks all!