Speed System - Nova PRIMAX Betriebshandbuch

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Speed system:

The NOVA PRIMAX can be equipped with a stirrup operated speed system.
ATTENTION: THE GUTESIEGEL CLASSIFICATION MAY CHANGE WITH
VARIOUS SIZES OF GLIDER WHEN FLOWN ACCELERATED.
CHECK DHV CERTIFICATE OR ACTUAL TECH DATA ON NOVA WEBSITE!
The speed system affects the A-, B- and C-risers. In normal flight all risers
have an overall length of 52cm (the risers of the XS and XXS are only 47cm
long).
When the stirrup is pushed out the A- and B-risers are shortened by up to max.
14cm, the C-risers by 7cm, the D-risers retain their original length.
This measurements influence the DHV certification.
An incorrectly fitted speed system causes a loss of certification!
How is it fitted?
Most modern harnesses have pulleys attached for speed system fitting. In
case not, it is important to attach pulleys (sewn on tabs) in such a way that
allows the pilot to maximize the power vector of his / her legs without "pushing
back" in the harness.
The NOVA speed system, including "Brummel-hooks" supplied, must be
assembled as per instructions.
The speed system cord is firmly attached (use bowline or other nonslip knot)
to the foot stirrup (webbing or alloy bar). The other end of the cord is run
through a pulley on the harness and then in an upward direction to be then
firmly attached to the "Brummel-hooks"!
The length of the cord leading to the stirrup should be adjusted so that it is
easy to put your feet into the stirrup in flight but still short enough to allow full
speed system travel. (Use of 2 stirrups in a ladder fashion can enable you to
reach the full range if your legs are not long enough.)
Ensure both cords on the stirrup are of equal length, to avoid putting a turn in
the glider.
Test your speed system for the correct length of cord on the ground first, with
your harness and risers, before flying with it! The full range is reached when
the 2 pulleys join together.
How does it work?
The speed system utilizes a 3 to 1 pulley mechanism which results in short-
ening the A-, B-risers and C-risers as described above.