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Tear/breaking
strength: 5 lb/45 lb
Identification: Ripstop nylon
Common use: Ram-air canopies and some round
reserves
Comment: F-111™, Exacta-chute™
Figure 3-4. Cloth, parachute, nylon, Ty-1, zero
porosity.
Specification: Commercial, 1.13 oz, 0 cfm, silicone
coated
Tear/breaking
strength: 12.6 lb/43 lb
Identification: Ripstop nylon
Common use: Sport main canopies and some
reserves
Comment: Trade names include Zero P3™,
Soar-Coat™.
3-3
Figure 3-5. Cloth, netting, nylon (marquisette).
Specification: PIA-C-26643
Tear/breaking
strength: 3 lb/25-35 lb
Identification: N/A
Common use: Military pilot chutes
Comment: Ph: 6-8
Figure 3-6. Cloth, mesh, large hole, nylon.
Specification: Commercial, No. 94040
Strength: N/A
Identification: N/A
Common use: Sport pilot chutes, some round
reserves
Comment: Ph: 6-8, 96" wide
The composition of most containers is from either nylon
duck (para-pak) for military systems or Cordura® for
sport systems. Most sport containers also utilize a thin
foam lining on the inside of the flaps to smooth out the
fabric and absorb wear and tear. Other fabrics, such as
mesh, Spandex®, and ballistic fabric, serve specialized
purposes. [Figures 3-7 through 3-15]
Figure 3-7. Cloth, duck, nylon (para-pak).
Specification: PIA-C-7219 class 3, 7.25 oz, 420
denier
Tear/breaking
strength: 20 lb/275-325 lb
Identification: 1-1 plain weave
Common use: Military containers
Comment: Commercial para-pak is 400 denier
with a urethane coating on the inside.
Figure 3-8. Cloth, nylon, Cordura®.
Specification: MIL-C-43734, class 3
Strength: 1000 denier
Identification: N/A
Common use: Sport and military container systems
Comment: Has a urethane coating on the inside.
3-4
Figure 3-9. Cloth, nylon, Cordura®.
Specification: MIL-C-43734
Strength: 500 denier
Identification: N/A
Common use: Sport container systems
Comment: N/A
Figure 3-10. Cloth, duck, nylon, ballistic.
Specification: PIA-C-3953, class 2
Strength: 1100 lb, 20 oz/yd
Identification: 3 x 4 basket weave
Common use: Stiffening material for containers
Comment: Uses a melamine resin for stiffness.
Figure 3-11. Elastic fabric, Spandex®.
Specification: Commercial
Strength: N/A
Identification: N/A
Common use: Main pilot chute pockets
Comment: N/A
Figure 3-12. Pressure sensitive adhesive tape —
ripstop tape.
Specification: PIA-T-43618
Strength: 60-75 lb
Identification: Ripstop weave fabric with adhesive
backing, various colors
Common use: Field canopy repair
Comment: May degrade canopy fabric over time.
3-5
Figure 3-13. Foam, Volara®.
Specification: Commercial
Strength: N/A
Identification: N/A
Common use: Padding for leg and back pads
Comment: Various thicknesses: 1/8" and 3/16"
most common.
Figure 3-14. Foam, ester liner.
Specification: Commercial
Strength: N/A
Identification: 1/8" thickness
Common use: Lining of container systems
Comment: Bonded to various fabrics such as
Oxford cloth.
Figure 3-15. Oxford cloth, 200 denier.
Specification: Commercial
Strength: N/A
Identification: Taffeta weave
Common use: Reserve deployment bags
Comment: N/A
3-6
WEBBING AND TAPES
While many webbing and tapes have the same specifications,
they still have different designations. The difference
is a common rule of thumb where anything 1" or
wider and over 1000-lb strength is webbing. Anything
less is a tape. There are, however, some examples that fall
outside of this criterion.
The primary use for webbing is for load bearing purposes
such as harnesses and risers. Tapes are for use as support
and reinforcing for canopies and containers. Most webbing
and tapes, when manufactured, are left in their natural,
untreated condition (condition U), or treated with a
synthetic resin named Merlon, for stiffness (condition R).
A newer treatment, called “Ecco,” is similar to a light condition
R. This is a newer treatment that is ecologically
friendlier than using Merlon. It also results in a medium
stiffness that is easier to sew. This is for use primarily in
the lighter weight tapes such as 3/4" Ty-3. [Figures 3-16
through 3-31]
Figure 3-16. 9/16" Ty-1 Tape.
Specification: PIA-W-4088
Strength: 500 lb
Identification: 2/2 HB twill, 9/16" width, no color
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Parachute Rigger Handbook(28)
