Abrasion and deformities
With large and critical abrasion and deformations, the entire cell panel in question must be
replaced by the manufacturer. The determined values/modifications are to be noted in the
testing log!
Testing of the ribs
Visual inspection of the chambers (from the leading to the trailing edge) whether the stitch-
ing in the seams, cell partition ribs and reinforcements are in good shape, thus without tears,
deformations, abrasions or damage of the coating.
With torn ribs, defective, loose or missing stitching in the seams the glider must be returned to
the manufacturer or authorized inspection operation. The determined values/modifications are
to be noted in the inspection log!
Check of the tear resistance
To be conducted with the Bettsometer at the following points (B.M.A.A. approved patent num-
ber GB2270768 Clive of bed Sails)
The test sequence is to be inferred from the operating instruction the Bettosometer.
– In both the top and undersail where the A-lines connect, push a needle-thick hole and
check the tear resistance.
– The limit value of the measurement is determined at 500g, and a tear width of fewer than
5mm.
The determined values/modifications are to be noted in the inspection log!
Porosity check of the canopy
At all following measuring points the air porosity has to be more than at least 20 sec. (by Kret-
schmer).
At smaller air permeability values the paraglider must be returned to the manufacturer.
Measuring points: The porosity measurements by the Kretschmer measuring method (please
consider operating instruction) are to be conducted at the following points on the canopy
check on both under and upper sail.
– Center cell approx. 20-30cm back from leading edge
– 3rd Cell off center both to the left/right approx. 20-30cm back from leading edge
– 10th Cell off center both to the left/right approx. 20-30cm back from leading edge
The determined values/modifications are to be noted in the inspection log!
