Dudek Coden User Manual page 26

Speed system influence on the aerofoil
Risers neutral (without speed)
Slowest speed,
minimum sink,
Take off position
All risers neutral at: 540mm
(with maillons)
B
26
A' A
Full speed
Increased speed,
increased sink
Speed system with maillons for 25.5 size:
A - 410
A' - 460
B - 540
B A' A