Table 6-4.—Barometric Pressure Conversion Chart
5. Thread the
cylinder and
of 600 ± 60
inflation valve onto the
tighten it to a torque value
inch-pounds for multiplace
life raft cylinders and 400 ± 40 inch-
pounds for LR-1 raft cylinders. T he
hydrostatic test does not apply to the
LR-1 life raft cylinder.
MULTIPLACE RAFTS
Multiplace life rafts vary in size and in the
quantity of equipment they carry.
CNO has established survival equipment lists
as standards to be used by all concerned. These
lists provide the equipment necessary for an
effective 24-hour survival capability.
The body of the life raft consists of an
encircling buoyant tube and a fabric bottom. The
fabric sections used in the inflatable buoyant tube
are incorporated in such a manner that the warp
threads of the straight fabric run in a
circumferential direction around the tube, and the
warp threads of the bias cloth run in the opposite
direction in the adjoining sections.
The fabric bottom of the raft is applied
without tension across the enclosure formed by
the flotation tube, and it is attached securely to
the underside.
SEAM TAPES AND PATCHES
All raft seams and patches are secured by the
use of self-curing cement, applicable to the
specifications listed in the Inflatable Survival
Equipment Manual, NAVAIR 13-1-6.1.
No sewing or stitches are used in the seams
or through the fabric of any compartment.
However, sewing is permitted in the construction
of patches, oarlocks, disks, flap seats, cylinder
carriers, lifeline supports, handles, and pockets.
Seam repair is done only if a flotation tube
does not leak; that is, if only the outer seam tape
is loose or if the seam does not seal a flotation
tube. If the seam tape is present and undamaged,
recement the tape to the raft. If the tape is missing,
measure and fit a replacement tape to the area
and cement it in place. Overlap the seam tape on
other seams a minimum of 1 inch.
If the tape is damaged, peel the tape from the
raft. Apply toluene only as needed to loosen the
tape. Avoid excessive application of toluene on
the seams, and remove any spilled or excess
toluene immediately.
6-5
