CHAP TER 1
IN TRO DUC TION AND GEN ERAL IN FOR MA TION
1-1 IN TRO DUC TION
The HGU-84/P Com mer cial Hel met As sem bly is de signed to pro vide eye, ear, and head
pro tec tion when prop erly as sem bled and fit ted to the aircrew mem ber. It has a light -
weight hel met shell con structed of graph ite, bal lis tic ny lon, fi ber glass, and ep oxy resin.
The hel met as sem bly, avail able in four sizes (me dium, large, X-large, and X-large
wide), is form-fit ted. Its sta bil ity is en hanced by an in te grated chin/nape strap as sem bly.
The hel met as sem bly also houses the head set com mu ni ca tions and al lows for the use
of clear or sun shade vi sor as sem blies. The hel met is de signed to per mit the use of the
MBU-17/P ox y gen mask if re quired.
1-2 SCOPE
This man ual con tains a de scrip tion of the HGU-84/P Com mer cial Hel met As sem bly
as well as the siz ing, fit ting, and main te nance in struc tions re quired to out fit aircrew
mem bers suc cess fully and to main tain the equip ment prop erly.
1-3 SYS TEM
DE SCRIP TION
1-3.1 HELMET AS SEM BLY
The air craft hel met
as sem bly is avail able
with one of the
fol low ing vi sor
con fig u ra tions: (1) a pair
of light weight vi sors,
(2) a sin gle vi sor
as sem bly, or
(3) a dual vi sor as sem bly
with a quick-dis con nect
for night vi sion goggles.
These con fig u ra tions
are shown in Fig ure
1-1. A chin/nape
strap as sem bly and a
ther mo plas tic liner
as sem bly are added
to the hel met shell
as sem bly for a better
fit and in creased
sta bil ity.
1-1
Fig ure 1-1. HGU-84/P Com mer cial Hel met As sem bly
HELMET WITH
SINGLE VISOR ASSEMBLY
HELMET WITH
DUAL VISOR ASSEMBLY
(QUICK DISCONNECT)
HELMET WITH LIGHTWEIGHT VISORS
