U-Turn BLACKLIGHT 2, Manual

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M A N U A L | U - T U R N | B L A C K L I G H T 2 40 | 41
abrasion and deformations
With large and critical abraded and deformed areas, the entire cell panel in question must be
replaced by the manufacturer.
The determined values / modifications need to be recorded in the inspection 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
the to the manufacturer or authorized inspection instance.
The determined values/modifications need to be recorded in the inspection log!
testing of the tear resistance
To be conducted with the Bettsometer at the following points (B.m.A.A. approved patent number
GB2270768 Clive Betts Sails)
– In both the top and bottom sail 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 need to be recorded in the inpection log!
testing of the porosity of the canopy
At all following measuring points the air porosity has to be more than at least 20 sec. (by
Kretschmer). At smaller air permeability values the paraglider must be returned to the manu-
facturer.
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.
- middle cell approx. 20-30 cm from the cell opening
- 3. cell from the middle (left and right) approx. 20-30 cm from the cell opening
-10. cell from the middle (left and right) approx. 20-20 cm from the cell opening
The determined values/modifications need to be recorded in the inspection log!