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21
Speed system
It is important that the speed system is
connected correctly, and the length
checked, to ensure smooth operation in
flight.
The link between the foot stirrup and the
risers consists of two cords and two
brummel hooks. The speed stirrup itself is
composed of a foot bar and webbing with
loops sewn on either end to attach the
cords. These cords should be run up
through the eyelets and pulleys on the
harness to connect with the pulley system
on the front of the risers (see Illustration).
This illustration refers to the UP harness,
but many harnesses are similar. If in any
doubt, please ask the harness
dealer/manufacturer.
The length of the cords should be set so
that, at full leg extension, the pulleys on
the risers are just touching each other.
Any shorter and the stirrup will be difficult
to reach; longer and the top of the speed
range will be unavailable.
During take off it is advisable to fix the
accelerator stirrup underneath the
harness to avoid any danger of tripping
over it.
Rope of speed
system
Brummel hook
for
combination
between
foot bar and
riser
Pulley roller
Foot bar with
2 steps
Illustration 7:
Components of the
foot accelerator
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