MIL-STD-849B
TABLE IV. Classification of defects - ring slot and ribbon parachute canopies - Continued.
Classification No. Defect Major/Critical Minor
12. Slot width (ring slot canopy)
Up to 1/8 inch 210
Over 1/8 inch 112
13. |
Leading and trailing edge of section hems (ring slot canopies only) |
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Underfolds where gore fabric is not butted flush with fold of |
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hem and caught with 2 rows of stitches (when specified |
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by drawing) |
113 |
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Intermittent underfolds up to 2 inches along seam length |
211 |
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Underfold over 2 inches along seam length |
114 |
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Fullness between lines of stitching |
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Up to 1/8 inch |
212 |
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Over 1/8 inch |
115 |
14. |
Gore width at skirt, measured centerline to centerline on adjacent |
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radial seams |
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Up to 1/4 inch |
213 |
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Over 1/4 inch |
116 |
15. |
Skirt reinforcement band overlap |
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Up to 1/4 inch minus |
214 |
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Over 1/4 inch minus |
117 |
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16. |
Over 1/2 inch plus Improper assembly of skirt reinforcement band |
118 |
215 |
17. |
Underfold (raw edge) skirt hem |
119 |
NOTE: When raw edge is the result of overfolding, the
edge extending more than 1/2 inch but less than 1 inch, the raw edge may be trimmed and will not be scored as a defect. If the condition extends more than 1 inch from the inside edge of the skirt hem, the stitching will be removed and the hem refolded and restitched.
18. |
Pleats (all hems) |
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1/8 to 1/4 inch and 1 per gore |
216 |
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Over 1/8 inch and over 1 per gore |
120 |
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Over 1/8 inch and over 6 per canopy |
121 |
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Over 1/4 inch |
122 |
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