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QualityGuarantee
GRADIENT s.r.o.
Plzenska 130/221
150 00 Praha 5 - Motol
Czech Republic
Tel/Fax: +420 257 216 319
gradient@gradient.cx
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Checking gliders

After 200 flying hours or after latest two years every glider must be thoroughly checked

and tested by the manufacturer or by Gradient authorised service centre.

This check is primarily focused on:

- measuring of porosity

- measuring of tear strength of fabric

- sewing of panels, attachment points, cell openings, etc.

- condition of lines and risers

- strength of lines

- geometry of the suspension system

All data are recorded in the test report. On the basis of the real wing’s condition, the check

expert can define the next check interval; under normal circumstances is it two years.

Checking geometry

When checking geometry on the Gradient gliders it is necessary to be concentrated in differences between rows.

Briefly, how to measure geometry of suspension lines:

  1. Stretching of all lines from attachment points to the main loop on the riser by 7,5 kg - this should eliminate most of inaccuracies from uneven shrinkage of lines and clearances in connection of lines; without this is measuring for nothing….
  1. Measuring of total line lengths (with few exception including risers) and evaluation of differences between rows.
  1. Modification of lines if necessary. It is possible to release loops on the C-lines (or to make a loops on A and B lines).  
  1. Verification measuring of total line lengths and evaluation of differences between rows


Checking adjustment of brakes

Every pilot is responsible for adjustment of brakes on his glider in accordance with pilot´s manual. There is no simple way how to check adjustment of brakes with measuring. If are there any doubts in adjustment of brakes, we recommend always checking brakes on the inflated glider.

We strongly recommend keeping of this method for all Gradient gliders. 

Checking gliders
Bright4 22 24 26 28 30
Bright5 22 24 26 28 30
Denali
24 26 28

Golden3 22 24 26 28 30
Golden4 22 24 26 28 30
Golden5 22 24 26 28 30
Nevada 22 24 26 28 30
Nevada2 22 24 26 28 30
Aspen4 22 24 26 28 30
Aspen5
24 26 28

Aspen6 22 24 26 28 30
Avax XC5
24 26 28

BiGolden2


38 42
BiGolden3


39 42

BiGolden4


37 42

Freestyle2 20 22 24


Freestyle3 20 22 24