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01.06.2011
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on the left side. Then A2, and A2M on the right. Then those lines on the left,
and so on …
Further more you have to enter the ripped lines and the breaking load in the
check protocol!
The ripping test has to be performed with a special machine and with a feed of
1m/min. (see EN 926-2:4.6.3)
If one of the ripped lines doesn’t meet the requirements, all lines on the glider
have to be replaced. You can find the requirements in the table below.
Before tearing the length of the lines has to be measured. The torn lines have to
be replaced. Please find the used line materials and the correct seam pattern on
our homepage:
http://www.nova-wings.com/english/downloads/check.html
http://www.nova-wings.com/download/files/line_sewing_new.pdf
The braking strength has to be noted in the check report.
Gliders with Dyneema lines on all A-lines and B-lines
The ripping test doesn’t have to be carried out at the first NFS (so 2, or 3 years
after purchase), because Dyneema (PPSL) lines don’t loose much strength in
normal use. That’s why the ripping test doesn’t have to be carried out before
the second NFS.
But we recommend performing a ripping test at the first NFS if:
if the wing is used for acro flying regularly
if the lines got in contact with salt water, or if the glider was used a lot
in salty air
if the lines got in contact with sweat a lot (e.g. school gliders on the
training hill, due to sweaty hands)
if the glider was exposed to sand for a lot of time
if the glider was exposed to heat (> 50°C, e.g. in a car) for a long time
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