Selecting Proper Stow Bands; Line Dump - Sigma TANDEM VECTOR Owner's Manual

SIGMA TANDEM SYSTEM OWNER'S MANUAL
SELECTING THE PROPER
STOW BANDS
Band types for:
1) All Dacron lined canopies
2) Microline
NOTE: If you run out of all specialized Tandem
rubber bands (2" x 3/4"), it is possible to use
two regular rubber bands for each line stow.
Be sure the combined width of the two rubber
bands does not exceed 3/4 inch in width. Any
substandard bands should be replaced with
Tandem bands as soon as possible.
TANDEM TUBE STOWS

LINE DUMP

Definition: During bag lift-off, the rapid
acceleration of the main bag can cause the
entire line stow group to fall off the bag due
to loose or weak stow bands.
The stow bands used on the Tandem Sigma
are very important. Even more so than sport
rigs, as the Tandem main bag is lifted out of
the container at a more rapid rate. The
Tandem Sigma must have the suspension
lines securely stowed. Be cautious of bands
which are too weak or stretch too much as
they can cause deployment problems.
Because of the increased weights involved in
carrying two people, the forces on the bag at
deployment time can be enough to cause line
dump if the bands are not tight enough. On
the other hand bands that are too tight may
cause problems disrupting the even
sequencing of the deployment.
Line dump can lead to partial malfunctions as
the loose suspension lines quickly come
under tension, and will at times form pressure
knots, causing lines to entangle.
Page 2:X Section 2: Equipment • Chapter 4 - Packing & Closing the Main 11301 - 00.00.0000