FUTABA 32MZ-WC Full Manual page 161

This function let's you adjust for left and right
rudder angle changes at elevator and rudder
ELEVATOR
(RUDDER 2)
RUDDER
(ELEVATOR 2)
to each rudder side moving up and down together,
each side moves in opposite directions when
V-TAIL
as a Ruddervator, as they can serve the same
purpose.
operation
＜ Model Menu (Airplane/Glider) ＞
161