LRU-7/P is used with a modified SP-1A seat
pan and NS-3 and NES-21A parachutes.
LR-1 LIFE RAFT ASSEMBLY
The LR-1 life raft assembly consists of an
inflation assembly (carbon dioxide cylinder and
inflation valve) and a one-man life raft; three
types of carbon dioxide cylinders and three types
of inflation valves are approved for service use.
The raft consists of a single-compartment
flotation tube with a noninflatable floor. It is
blue (when initially procured) and features a
weathershield, sea anchor, sea anchor pocket, and
a retaining line pocket. The weathershield is a dull
sea-blue color on the outside and a bright red on
the inside. In addition, a directive compliance
patch and an inspection record patch are included
for record keeping. The various applications of
the LR-1 life raft are contained in NAVAIR
13-1-6.1.
Emergency survival equipment (when used) is
secured to the raft by either a securing line or a
drop line,
as applicable.
The packaged
configuration of an LR-1 life raft assembly,
including survival items, varies according to
application.
To makeup a packaged assembly, the required
components must be individually requisitioned,
unless otherwise specified.
The LR-1 life raft assembly is inflated either
manually by pulling the inflation assembly
actuating lanyard, or automatically on the LR-1
(RSSK) by gravity drop on the kit actuation. The
inflation assembly inflates the flotation tube.
After boarding the raft, you can top off the LR-1
by using the oral inflation valve.
This section describes the components of the
LR-1, the survival equipment, and the procedures
for performing inspections and maintenance. We
will not repeat procedures that parallel those
already outlined for multiplace rafts.
Flotation Tube
The body of the raft consists of an encircling
tube, which is one continuous chamber. There are
no internal bulkheads as in the multiplace rafts.
Various attachments to the flotation tube are
shown in figure 6-11.
Oral Inflation Tube
The valve on the oral inflation tube closes
automatically by spring pressure when it is not
held open. The valve is locked shut by turning the
239.351
Figure 6-11.—LR-1 life raft assembly.
6-20
