Originally Posted by
pattern_is_full
There is also the case of the Rogallo Delta often used for hang-gliders - where control is via the flexibility (warping) of the whole wing.
Rogello hang-gliders and microlights are controlled by weight shift, the wing itself is designed to be neutral in pitch using a reflex wing section, the weight shift action being the control input although some have an adjustable trim function altered by changing the amount of reflex, other ingenious methods are used.