"lfk f; \"A Lt. - Airborne Systems

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STEP ONE STEP TWO
Figure 22 Tapered Radial/Suspension Line Joint
Suspension Lines
fladiel Ribbon
Horizontal Ribbon
SECTION A.
Figure 23 Continuous Radial/Suspension Line
Joint reinfo'cements at the skirt, made of short
lengths of tape or webbing, include.
a single- lapped doubler
two piece doublers , inside and Qut, and
combinations of doublers, butterflies, and
looped rio-extensions, and
a single piece of webbing wh ich provides
for susoension-Ime reinforcement and
attachment of the reefing ring to the
skirt, as shown in Figc!re 4. 23.
I.ine Splicing, The susoensiun line-to-line jcint, in
Its most common form . is a stitched lap joint where
the use of a flat texti Ie member is Involved. When the
use.of careless braided cord is in'Jofved , strong I"ne- toline
land 1::JOps joints) are ros5ible (T;;ble 4. 8 I by
188
insert: ng one end th rough the braided wa II of the
cord and sec.Jrinu with some type of minimal sewing.
The high ef iciency of this type of joint technique
results .frorr the SQ called "Chinese-finger.trap " prin.
cipie. The end rema i n ing with in the braided cord
should be finished with long taper in order to furth.
er increase the high joint efficiency fC3ctor
Splicable braided cord is available in nylon, polyester
and Kevlar aramid matenals. Several examples
of coreless braided cord splices and applicable para.
meters are shown in Figure 4 24.
SvspensiDII Line
Figure 24 Suspension Line Loop, Style A
Riser Attachments. In the suspension line-to-riser
anachrnent joint. :wo basic configuracion are used.
One is an entirely Joined by sewing type dnd the
other a combination loop-end-sewed joint which can
include a metal link fitting, The use of separable type
of metal lirk in the lac ler is by far the more common
method. Any system of textile members which COilnect$
the canopy s suspension lines to the load being
carried cQITprises :he riser system. Different requireents
for riser design give dse to the need of various
configurations. In the following paragraphs , three
typical riser configurations are described.