Page 9 - AAPT November 2019
P. 9

Cover Story
       Background                            ....this has changed for the 4th and 5th generation of
       Many  of  us  use  devices  that  are   aircraft and resulted in a growth in the importance
       fragile  and  susceptible  to  damage   of the flight helmet as a source of combat advantage
       or  breakage.    Care  must  be  taken
       to prevent damage to such a device    outside its basic protection role.
       – especially when the user relies on
       the device for his or her occupation,   useful,  combining  functionality  and   helmet.  The pilot is able to access the
       adventure and, at times, even to protect   advantage with the basic requirement   information required to fly the aircraft
       the user’s life.  This potential exists, for   of safety.  But if we simply look at the   almost  regardless  of  where  he  is
       instance, when a device is carried or   period  up  until  just  a  few  years  ago   looking.  This critical flight information
       otherwise transported in the austere   of the flight helmet’s life, it seems to   will only be available in the helmet he
       environments where we work or play.  have  stagnated  technologically  and   wears, making it indispensable flight
          An exemplary device that includes   thus,  strayed  little  from  its  primary   equipment.    In  addition,  he  will  be
       fragile elements that are susceptible   goal  of  protecting  the  pilot’s  head.    able to use NVDs and various infrared
       to breakage is a modern, aviator flight   Over this period most modern helmets   cameras  and  display  options,  DAS
       helmet.                              have  offered  the  following  similar   (Distributed Aperture  System),  etc.
          The aviator flight helmet, like the   capabilities:    protective  outer  shell,   without taking any additional gear to
       aircraft he or she flies, has come a long   comfortable  interior,  attached  visor,   the aircraft, like is the norm at present.
       way since the first powered flight over   radio communication, source of oxygen,   All  of  these  options  are  contained
       100 years ago.  Advances in helmet   and add-ons like an attachment for a   within the flight helmet he carries to
       use and function have been driven by   separate Night Vision Device (NVD).    the jet.  The trade-off is that this new
       changing safety requirements, aircraft   Although convenient and useful, few, if   helmet has become a very sensitive
       capability, technology and, at its base   any, of these capabilities are absolutely   and  fragile  piece  of  gear  –  more  so
       level, necessity.                    critical to fly and employ the aircraft.  than any other piece of gear he uses.
          In the early 1900s through the end   This has changed for the 4th and 5th   Where the helmet once served merely
       of  WWII,  the  aviator’s  helmet  was   generation of aircraft and resulted in a   to protect the pilot’s head, the pilot will
       made  of  soft  leather  and  intended   growth in the importance of the flight   now, in some capacity, serve to protect
       mainly  to  protect  from  wind  and   helmet as a source of combat advantage   this helmet!
       cold.  As advances in wireless radio   outside its basic protection role.  In the   Gone  are  the  days  of  careless
       communication developed, the leather   latter stages of 4th generation aircraft   handling and use of a fighter aircraft
       helmet  began  to  feature  earphones   maturity, on platforms such as the F-15,   helmet.  The pilot who now relies on this
       for  radio  receivers.  Later,  as  turbo-  F-16, F/A-18, F-22 and various foreign   helmet to successfully fly and employ
       charging technology permitted higher   competitors,  the  development  of  a   his aircraft will be acutely aware and
       aircraft operating altitudes, the oxygen   helmet  mounted  cueing  system  has   concerned  about  the  safety  of  this
       mask  attachment  became  standard   changed the direction of flight helmet   helmet while in transit to and from the
       as well.                             requirements  and  has  begun  a  shift   aircraft as well as any other time he is
          Early  eye  protection  in  the  form   in the definition of its primary function.    not using it for flight.
       of rubber-framed glass goggles were   In  a  sense,  tactical  employment  of   It  serves  to  reason  that,  like  all
       adopted  from  the  fledgling  days  of   the  helmet’s  cuing  system  and  the   technology, these improvements come
       manned flight as the most reasonable   advantage  gained  by  its  use,  have   at a price.  What the pilot might have
       way to protect the eyes--especially in   changed the focus of both construction   considered expensive for the previous
       open-cockpit machines.  As operating   and  the  role  the  helmet  plays.   Add   helmet he wore will pale in comparison
       speeds became substantially increased   to this the ability to see the video of   to the price tag on this new helmet – to
       with the advent of jet aircraft, rigid visors   an  aircraft  sensor  (like  IR  Imagery)   an order of great magnitude ($500K
       were developed as part of the helmet to   displayed on the visor, and the utility of   USD  for  F-35  HMD).    So,  another
       protect aircrew from the deadly wind-  the helmet increases dramatically.  Both   factor contributing to the critical nature
       blast effects of emergency ejection.  of these capabilities are available now   of  helmet  protection  is  its  extremely
          Over  the  years,  the  flight  helmet   on helmets such as the Joint Helmet   high price relative to past years and
       has served first and foremost to protect   Mounted Cueing System (JHMCS).  former helmet bag solutions – a fact
       the pilot’s head in various situations:   The  helmet  used  on  the  F-35   that will be realized by both the end
       from bumps and scrapes on the flight   Joint  Strike  Fighter  has  all  of  these   user and the numerous individuals and
       line or in the cockpit, to the dangerous   capabilities and more.  In fact, the F-35   services responsible for acquisition and
       environment of an aircraft carrier deck,   no longer uses the Heads-Up Display   maintenance of these helmets.  What
       and  more  critical  still  in  the  case  of   (HUD) that has become the standard   is required is something to aid the pilot
       high-speed ejection.  Like any piece   in  modern  tactical  jets.   The  critical   and technician in a mounting challenge
       of equipment however, man has found   information  previously  displayed  on   to protect this helmet.
       a way to make this device even more   the HUD will now be contained in the

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