Advance acoustic IOTA2 Manual page 11

By moving the knots and therefore the position of the locking balls
, the travel and loading of the accelerate system can be altered .
The total travel of the system can be changed, and with it the positi-
on at which the 3:1 +
(high gear fig . 2) .
If the knots are moved down, the change from 3:1 (fig1) to 2:1 (fig 2) ra-
tios happens sooner – here the speedbar loading is raised, but the to-
tal speed system travel thereafter is shortened . If the knots are moved
upwards the gear change to 2:1 occurs later, and total travel is leng-
thened (longer legs) .
The IOTA 2 speed system is arranged so that the profile shape of the
wing is fully retained over the angle-of-attack range of the speed sys-
tem . This maintains the beneficial qualities of the profile at high speeds .
Caution: The speed system is correctly adjusted when you can
use the full travel available on the risers . Make certain that the
speed lines are not set too short, thus causing the wing to be
pre-accelerated all the time!
(low gear, fig 1) ratio changes to 2:1
Fig 1 Fig 2
3:1, low gear 2:1, high gear
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