Advance acoustic SIGMA 9, User Manual

Page: 11 / 48

1
Caution: Even though the SIGMA 9 has a high degree of
stability in accelerated flight you should only use as much
speedbar as you feel comfortable with .
Setting up the speed system
The SIGMA 9 speed system can, with the help of the SPI, be
adjusted so that the whole speed system travel can be used . The
system is correctly set when pushing the first speed step gives you
the 30% position, and pushing the second achieves 80% acce-
lerate . Both toes fully extended should then reach 100% (pulleys
touching ) .
If, by setting the speed bar line lengths, a first adjustment of the
speed system for leg length and harness does not result in the set-
up described above, fine adjustment is possible by changing the
two-stage settings on the risers . By moving the knots which locate
the gear change balls 1 (see illustration) the speed system travel
and loading can be adjusted .
Example: If the knots are moved downwards the changeover
from the 3:1 ratio to 2:1 occurs earlier, raising the loading
but shortening the total travel . Conversely, moving the knots
upwards delays the gear change, and lengthens the total
travel of the speed bar .
11