Mustang Survival MD1127 User Manual

OWNER’S MANUAL

MD1127 LIFE PRESERVER

BY MUSTANG SURVIVAL

TABLE OF CONTENTS

INTRODUCTION

DESCRIPTION

A. GENERAL
B. THE MD1127 LIFE PRESERVER

1. DESIGN AND CONSTRUCTION

2. INFLATION SYSTEM

3. INFLATION CELL

4. FASTENER

5. BELT

6. MARKINGS

7. PACKAGE

OPERATING INSTRUCTIONS

A. THE BUOYANCY CELL

1. DEFLATING THE BUOYANCY CELL

2. INFLATING THE BUOYANCY CELL

3. FIT ADJUSTMENTS

B. DONNING INSTRUCTIONS
C. FOLDING PROCEDURES
D. LAUNDERING PROCEDURES

MAINTENANCE, INSPECTION
AND TESTING PROCEDURES

A. COMPONENT TESTING

1. INFLATABLE CELL TEST

2. ORAL INFLATION VALVE TEST

3. CO

2 INFLATION VALVE TEST

B. INSPECTION PROCEDURES
C. REPAIRS
D. WARRANTY REGISTRATION

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INTRODUCTION

DESCRIPTION

Mustang inflatable life preservers are items of primary survival equipment, and as such,
every precaution shall be taken to assure proper storage, maintenance, and handling. The
life of the wearer may well depend on the condition of the life preserver and the security
of its attachments and equipment. This publication provides the information required to
inspect, test, and maintain the inflatable life preserver model MD1127. This model has been
approved by the Federal Aviation Administration (FAA) as Type I Life Preservers according to
the Technical Standard Order TSO-C13f.

WARNING:

CONSTANT WEAR USE ONLY TO BE DONNED PRIOR TO EACH FLIGHT

Note: The conditions and tests required for TSO approval of these articles are minimum

performance standards. It is the responsibility of those desiring to install the articles either
on, or within, a specific type or class of aircraft to determine that the aircraft installation
conditions are within the TSO standards; the articles may be installed only if further
evaluation by the applicant documents an acceptable installation, and is approved by the
Administrator.

All correspondence concerning this manual shall be directed to:

Mustang Survival Corp.

7525 Lowland Drive

Burnaby, B.C.

V5J 5L1, Canada

Toll Free: 1-800-526-0532

Email: [e-mail]

A. General

Mustang Survival is pleased to present an FAA approved inflatable life preserver, the
MD1127. This product is designed with sufficient buoyancy to turn an unconscious
person face upwards within five seconds of immersion. Fully inflated, the life preservers
provides a minimum effective buoyant force of 35 lbs. The MD1127 is universal in
size and is designed to fit most adults comfortably. This can be worn over bulky
outer clothing, and has adjustable nylon waist belts which secure an easy-to-wear
position allowing for maximum freedom of movement. Each life preserver is equipped
with a small rescue light, which is water activated and may be used as a beacon for
emergency rescue situations.

The life preserver is inflated by using a carbon dioxide gas inflation system. It is a
common characteristic that all inflatable life preservers will gradually permeate CO2
gas through their cell material with time, and a softening of the cell will be observed
over extended periods. In the MD1127 this is over come by providing an oral inflation
system to top up the pressure in the cell. The oral inflation system may also provide
added pressure to the cell in cold temperature conditions, since under these conditions
the CO2 gas will not expand as greatly as in warmer temperatures. Finally, in the event
that the CO2 inflation system fails to operate, the oral inflation system may be used as
a backup system to fully inflate the life preserver.

Figure 1: MD1127

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B. The MD1127 Life preserver

1. Design and Construction

The MD1127 incorporates a dual chamber inflatable cell, which is
separated by an internal floating baffle. The floating baffle allows either
chamber to fully inflate the life preserver. The life preserver is styled as a
protective collar fitted around the neck and front chest. The protective collar
is constructed from a highly durable 6 oz. Nomex Omniweave. The outer
shell of the MD1127 is not integral with the inflation cell, but acts as a cell
enclosure by opening the Velcro

®

seals; when deflated, the inflation cell is

folded and placed back into the cell enclosure as shown in Figure 4.

The MD1127 includes a small carry pouch attached to the waist belt, and
two small pockets located on each of the insides of the front cover. A safety
whistle is supplied with the life preserver, attached to the bottom right section
of the bladder. A sea light is attached to the left side of the bladder.

2. Inflation System

The MD1127 dual chamber inflatable cell design incorporates a primary
inflation cell accessed from a CO

2

inflation system and an oral inflation
system, along with a secondary cell accessed from its own oral inflation
system. In case the primary inflation cell has been punctured, or fails to
inflate, the life preserver may be inflated orally by the secondary inflation
cell. The oral inflation systems consist of an oral tube and oral valve. The oral
valve is normally closed, and is opened by depressing the mouthpiece when
inflating or deflating.

3. Inflation Cell

The polyurethane coated nylon dual chamber inflation cell is not integral with
the outer shell of the life preserver, but is connected to the outer shell only
by the inflation system. The dual chamber cell is in the form of an inflatable
head support collar, which fits around the neck and chest. The primary
chamber of the cell is located on the outer front side of the inflation cell,
while the secondary cell is located on the inner side of the inflation cell.
The dual chamber cell is fully inflated with one 35 gram cylinder of
compressed CO

2

gas.

4. Fasteners

The MD1127 has easy-to-use, Velcro®, hook and loop fasteners on each
side of the front cover. This allows the life preserver to be opened when
inflated, and easily folded when deflated. When inflating, the Velcro

®

fasteners burst open allowing the inflation cell to expand out of the cell
enclosure.

5. Belt

A durable nylon waist belt is attached to the life preserver. This belt is
fastened and fitted using a quick-release buckle and waist belt adjuster.
To tighten the belt, pull the extra webbing from the waist belt adjuster, as
shown in Figure 5. After adjusting the fit, the excess webbing is led through
a belt loop to keep it out of the way.

6. Markings

The life preserver is marked with indelible stencil and all markings appear
in both English and French. The life preserver is marked with donning
instructions, which are located on the left back cover. The donning instruc­tions are printed clearly enough to be read even in dimly lit surroundings.

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a) Starting from the end farthest from the oral valve, tightly roll

up the life preserver.

b) Depress the oral valve to release the trapped air .

Figure 1: Deflating the buoyancy cell