[sci.military] Knife information request

gahooten@ames.arc.nasa.gov (Greg A. Hooten) (09/01/89)

From: gahooten@ames.arc.nasa.gov (Greg A. Hooten)

I heard a story about Vietnam fighting knives before.  It
explained that the serrations along the back of the knife were
place there (and were deepened for) to cut thorough the
aluminum skin on helicopters and airplanes.  Mostly
helicopters.  So, if a man is stuck in one, he could cut an
alternate exit or enlarge one.  They do cut a lot of things,
but I have never cut aluminum with one, especially aircraft
aluminum.  Is there any validity to this?  Outside of utility
like this, it seems a waste, it is not a combat essential for
fighting, but seems more as a tool.  Any info?

Greg Hooten
GAHOOTEN@ames.arc.nasa.gov

ehr@uncecs.edu (Ernest H. Robl) (09/05/89)

From: Ernest H. Robl <ehr@uncecs.edu>
In article <27067@amdcad.AMD.COM>, gahooten@ames.arc.nasa.gov (Greg A. Hooten) writes:
> I heard a story about Vietnam fighting knives before.  It
> explained that the serrations along the back of the knife were
> place there (and were deepened for) to cut thorough the
> aluminum skin on helicopters and airplanes.

First it's worth pointing out that thare was no one single type of
"Vietnam fighting knife" as such.  Various units were issued various
types of knives, depending on their missions.  These included the 
standard M-7 bayonet.

What you are probably referring to is the Air Force survival knife,
which was also issued to personnel in other military services.  (I'm
far from being an expert on military knives, but I did tote one of 
these for the eight months that I served in Vietnam, 1969-1970 --
even though I was in the Army.)

The survival knife is indeed intended as much as a multi-purpose
tool as a weapon.  One example of this is the hexagonal butt that can
be used for hammering (or smashing through things, such as a plexi-
glass canopy).  Another is the serration on the back for heavy-duty
cutting.

As far as I know this knife is still in use today -- and you can buy
it from many of the companies that sell military-related items.

Though the only thing I ever used my survival knife for was cutting
of food when no other appropriate cutlery was available, I did spend
a good deal of time flying on both large and small aircraft of many
types.  In several cases, the pilot and I were the only ones aboard,
giving me a chance to talk.  (Also, as part of my job writing up
daily action reports -- mentioned in an earlier posting on equipment
reliability -- I had access to field reports which described how and
why aircraft went down.)

There were a couple of things that became very clear to me from these
sources.  One of these was that fire was the biggest threat in a 
crash landing.  Another was that in some cases the buckles on the seat/
shoulder harnesses locked up on impact, and that you might have to cut
yourself free.  For that reason many of the helicopter and small fixed-
wing aircraft pilots and crewmen that I knew wore their survival 
knives strapped to their legs.  If you are belted in, and the knife is
on your belt, it's under the seat-belt harness and hard to get at 
when you need to cut yourself loose.

As far as getting out of a downed aircraft -- it's important to 
remember that much of the exterior skin of small aircraft such as 
light helicopters is VERY thin sheet metal.  That skin is for 
aerodynamics only.  Larger aircraft with pressurized cabins are a
quite different story.  You'd spend a lot of time trying to saw
through that type of metal with any kind of hand tool.

The threat of fire (burning, and not in the sense of "enemy fire")
was also the main reason that almost all the aircraft crew members
I knew would not wear the canvas-side jungle boot but rather opted
for all-leather boots which gave better protection in such a
situation.

-- Ernest

My opinions are my own and probably not IBM-compatible.--ehr
Ernest H. Robl  (ehr@ecsvax)  (919) 684-6269 w; (919) 286-3845 h
Systems Specialist (Tandem System Manager), Library Systems,
027 Perkins Library, Duke University, Durham, NC  27706  U.S.A.

steve@uunet.UU.NET (Steve Nuchia) (09/06/89)

From: nuchat!steve@uunet.UU.NET (Steve Nuchia)

In article <27067@amdcad.AMD.COM> gahooten@ames.arc.nasa.gov (Greg A. Hooten) writes:
>explained that the serrations along the back of the knife were
>place there (and were deepened for) to cut thorough the
>aluminum skin on helicopters and airplanes.  

It is plausible that the serations were designed with that function
in mind.  Military aircraft are equiped with a variety of escape
and rescue fittings.  On transport types (including utility helos)
there is often an area stenciled "cut here for rescue" with the
corners of a hatch-sized rectangle marked off.  The designers ensure
that this area is a patch of aluminum with no structual, cable, or
furniture pieces behind it.  You could cut it with a good strong
stick but a big serrated knife probably works better.

>like this, it seems a waste, it is not a combat essential for
>fighting, but seems more as a tool.  Any info?

Don't forget that a lot of modern combat consists of sitting
around in the woods playing boy scout.  A "combat" knife is
a very handy tool around the campfire.
-- 
Steve Nuchia	      South Coast Computing Services
uunet!nuchat!steve    POB 890952  Houston, Texas  77289
(713) 964 2462	      Consultation & Systems, Support for PD Software.

random@nwgpb.att.com (Dave L Pope) (09/09/89)

From: random@nwgpb.att.com (Dave L Pope)
	[Movies are often a dubious source of information, but does
	anyone know if this technique is used for real?  Sounds like a
	good way to ruin a knife. --CDR]

I once saw a movie involving a stealthy infiltration of a guarded
compound, and a large serrated edge knife was used in one scene
to stab a sentry walking on the other side of a 4' high (or so)
wall and, with a twist and a yank, jerk the body over the barrier.
It seems that similar applications could help in game-getting,
climbing, etc. Of course I have NO combat experience so this plan
may be totally unworkable.

	Random