coast artillery journal - sep 1924
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THE COAST ARTILLE(PUBLISHED AS THE JOURNAL UNITED STATES ARTIL
Copyrighted Monthly by The Coas
TABLE OF CON
FOR
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Report Documentation Page
Public reporting burden for the collection of information is estimated to average 1 hour per response, in
maintaining the data needed, and completing and reviewing the collection of information. Send comm
including suggestions for reducing this burden, to Washington Headquarters Services, Directorate for IVA 22202-4302. Respondents should be aware that notwithstanding any other provision of law, no per
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1. REPORT DATE
SEP 19242. REPORT TYPE
4. TITLE AND SUBTITLE
The Coast Artillery Journal. Volume 61, Number 3, Sep
6 AUTHOR(S)
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The
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190 THE COAST ARTI
Theoretically the results should beWhy? Errors creep in. These er
a. Accidental errors.
b. Other errors which may b
(1) Constant (called system
(2) Varying (they mayor mll i i ifi
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METHODS OF FIRE
6. In artillery fire we have two
a. Accidental errors.
b. Other errors due to:
(1) Personnel.
(2) Materiel.
(3) Basic firing data
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192 THE COAST AR
9. Paragraphs 7 and 8 providwhich may be followed to put
(for range) when the range dev
errors and, at the same time, t
the center of impact is due to
series of shots, we find that the
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METHODS OF FI
each shot of the series, the recipro
of each shot. If this probable er
probable error of the determinatio
tained when we took the mean o
of the n shots. There naturally h h ld b fi d d i
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194 THE COAST ARTIL
each shot. By means of the mea
find:
a. The most probable value o
compensate for the constant error.
b. The probable error of any m
c. The probable error ofa.
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METHODS OF FIRE
by .845. Now an approximation to
tained from : z (x-a); and if the arin
true value of the quantity whose mos
that is substituting the arithmetical
f th i t l f th
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196 THE COAST ARTIL
n 10 then ~1O = 3.2 andn 15 then ~~ =3.9 and
n 20 then ~W= 4.5 and
n = 25 then ~ z s - - = 5.0 and
n 40 then ~4() = 6 3 and
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METHODS OF FIRE ADJU
the deviation with its sign changed as thtinue the process to n shots. The total
method after n shots is exactly the same
n shots with the same initial elevation a
deviations. This is shown by the follow
Let al, az, as .. an be the 1st, 2nd, 3
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198 THE COAST A
a. By using the probability by step. (It might be one step.
b. By the trial shot method
what amounts to the same thin
tion method, called Whistler's R
c By combining at some st
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METHODS OF FIRE
target is then commenced. Ifgunrather large at long ranges and the
tions can be commenced. Plot the
paper, and stripping each deviatio
applied, plot also along the corresp
ballistic deviation. Whether or no
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200 THE COAST ART
with which to commence a mortais met with (and it occasionally
be straddled by the salvos. If th
law becomes clear, the predictions f
be made on the range adjustme
retardation whose law is not clear
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METHODS OF FIRE
flat correction throughout a zone is
follows from the abo~e that any frac
would be of no value as a flat cor
may be Coast Artillery stations wh
show the reverse of this to be true.
vestigation; and if true there is dem
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202 THE COAST ARTIL
ments) can be determined, applied
the fire can be adjusted by the sal
plotting the actual deviations of th
horizontal axis on cross section pap
of the adjustment corrections, the
zone will be apparent If the grap
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METHODS OF FIRE
made so that a large part of the wusing ballistic wind data prepared fro
the firing, would be on hand and the
would be merely an index as to the
followed.
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Coast Artiller
By COLOXEL,V .
PRIOR to the World 'Yar, it w
Artillery to issue annually a
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206 THE COAST AR
special application. The Chief way:
While the underlying principles o
application may be difficult,especial
will be the general case with naval v
may frequently call for the exercise
rule of thumb Nevertheless certain
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COAST ARTILLER
OBSERVATION AND A
There has been considerable
officers about spotting, the valu
adjustment of fire. Some feel th
ting adjustment of fire to be mad
at moving targets They feel th
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208 THE COAST ARTI
the preparation and training fobservation, the result of the pra
commanders are alive to the nec
plane spotting, and where facilit
experiments along that line, and
In regard to the methods of
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COAST ARTILLERY
I have stated that the correctifire is applied through the velocity
tion. This result follows, it is be
been determined by actual measure
a result of observation of fire at a
so applied. lVhen the velocity
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210 THE COAST AR
Considering the Method following are to be noted:
The fall of each shot must be ob
previous shots applied to each succeed
tial that the organization so firing be
that observation continue unobstructed
that there be sufficient time to permit
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COAST ARTILLERY
Coast Artillery School will so pre
ciently handle any Coast Artillery
may be sent to duty with units ar
which Coast Artillery troops are
R. O. T. C. Unit, or National Gu
apparent that the responsibility fo
is very great Each officer at the
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The Functions of Co
Positive System
B
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FUNCTIONS OF CO
COAST FORTIFICATIONS A COA
It is to the Coast Artillery
the Army must look for the tact
coast fortifications and their mis
But with the vague and conflic
today it cannot be expected th
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214 THE COAST AR
mISSIOnof the defending force
defensive position, that is to pre
tion of any .portion of the defen
fensive position may be establis
remote areas or for the tactical
the latter case, as in the defen
position is established sufficientl
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FUNCTIONS OF CO
assaults by the enemy main force
numerous possible methods of att
only by the resources, initiative
The defender, having surrendered
engage in combat at any instant
whose approach may threaten th
must halt their advance by the fir
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216 THE COAST AR
ment installed, and must be pro
emplacement of additional armam
of the defense of the coast is th
The installation of these fortifica
any particular branch, either act
branches. In the defensive com
of the assigned mission of the A
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FUNCTIONS OF C
attack against a coast, the navmost prominent part. The prim
vessels of various classes, batt
marines and such auxiliaries as
ports, etc. This change in the
attack compels a corresponding
elements of the defense This ch
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218 THE COAST AR
force to this terrain, in order toof the weapons of the defense.
installed for the emplacement o
protection of certain widely-sep
localities. These fortifications p
protected localities against vari
f h lf i i
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FUNCTIONS OF C
b. To attack enemy nava
against the protected localities
c. To attack enemy nava
point from which a landing ma
the defensive position.
d. To attack the princi
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Pistols and P
By MAJOR W. D
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PISTOLS AND PISTOL
problems of wind, light, mirage, atmosph
enter into this form of shooting and hav
firing, then the game takes on a scientific
Shotgun target shooting at clay
undoubtedly the best exhibition of a h
form of shooting, showing a wonderful
l i hi h th l t f ti i
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222 THE COAST ART
these aids that when they were r
legs and shoot like a man" they
boats in a heav,:.' sea. Incidental
l\larksmen" made the Pistol Tea
many cases on record of men, w
shooting game have been able wit
ifl h ti i t k
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PISTOLS AND PISTOL
and mind; further specific qualities physique, phlegmatic temperament, im
temperate habits and normal eyesight.
traits here enumerated would be an id
and develop into a pistol expert. Mo
attributes and still this lack should no
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224 THE COAST ARTIL
No one should buy his equipment knows what he wants. The initial
individual taste, but this is so in an
pays to buy cheap equipment.
Like selecting your first autom
pistol is difficult unless you know
f hi h i I
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l'ISTOLS AXil PISTOL SH
its advantages oyer the service pistol i
grip and balance, simplicity and safety. has the advantage of a greater number o
fire and permits the execution of more r
to the shooter. The recoil being- partially
of the automatic mechanism, there is I
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226 TilE COAST AH
weapons arc the best because o
vidual shooter and because of th
certain desirable features. There
one lIIust select the one which su
equation. The stock grips on m
average haml. The effect of we
d d h h i l d l
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PISTOLS AXil PIST
work in the hands of a good shot.
pistol team used this weapon exclu
maches of this year. The new Reis
ing pistol has several vcry goo
perfected to become a suitable pisto
For the man who desires to ta
h id f i li i i d lib ll
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228 THE COAST AUTI
fully observe the form and methods
After analyzing the different stylethe individual physique of the b
should be followed without mate
second nature to a ssume it. The
marily, shooting form, or in oth
Unless one takes a steady, comfo
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PISTOLS AXD PISTO
still be well balanced and able to sh
person of slender frame attempt towith the sen'ice pistol out of doors
ing he would find himself much handic
tion and the hellYY recoil of the gun.
a position suitable for any style o
f d l i i l
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2:30 THE CO,\ST ART
muscles. A good natural, comfo
trouser pockct, or even in the hformer is preferable. The shoot
without rigidity and maintained
each shot. The work of support
done mainly by the heayy shoulde
muscles. This is accomplished by
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PISTOLS AXD PIS
used in holding the weapon in the hold it firmly, as firmly as one migh
firm enough to be sure of not drop
to crush it. To do either might
caliber and recoil of the weapon t
cially in rapid fire. Itmust, how
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232 THE COAST AR
shooting. The line of sight thu
is then made coincident with the
of the bullseye. Most good pis
aiming and firing. The beginner
lar aiming because of its natura
handed shooter whose left eye is
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PISTOLS AND P
In connection with trigger sto caution the beginner against d
he has become reasonably expert
ger pull for an untrained trigger
than which there is no greater o
pull of not less than to 5 poun
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234 THE COAST AR
patience and self-control the beg
to be able to train his muscles in
his work in holding with the id
mind that good scores can be m
he gets his shot off with a smoo
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Problems of an Officer o
By MAJOR H. A
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236 THE COAST ART
Second-He attends drill on
Third-He attends school oFourth-His business may r
Fifth-He probably belongs
one night a week.
Sixth-He is probably marr
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NATIONAL
the state are having good atten
reason may be that you are in diversions. The other organizatio
entertainment centers around the
ber talking to a major of a battal
comparing the attendance of the
Chicago). His remark may bring
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238 THE COAST AR
The National Guard regula
from interfering in local politicdiscussions of an organization;
tions with disastrous results to t
tions at their stations. Be ca
of them.
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NATIONAL
of the regimental commander
done by dividing up the batterieless regularly go ahead, and dr
themselves. This has been sugg
paper than in practice. For
even three batteries would have
order to have a command larg
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240 THE COAST ART
Don't criticize; if correction
structive way so that no one will You will find those who are prone
merely trying to correct an error
Don't advise changes unless
other words, do not stop someth
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Organized
By CAPTAIN M.
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242 THE COAST ART
in a town, he will do well to go
estate dealers everywhere are pretThe military duties of the
duties as a "good will" representa
his station are equally as importa
the War Department with the Re
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ORGANIZED
his work beyond the recognizedlocal situation must be carefully
all times be in close touch with
Some of the things which he ma
1. Start the organizatio
2. Instruct various po
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Coast Artille
By 1ST LIEUTENANT B
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COAST ARTILLE
The question of security also
the declaration of war, the enemy
nitely located, while if he begins
position may be taken up before s
tion of high finance and governme
less expensive to follow up progres
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246 THE COAST AR
The Air Service and the C
reputation and future success
measure on one another. 'With
Without cooperation with Artill
Air Service degenerates consid
long range target practices fro
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COAST ARTIL
personnel, the Coast Artillery leading technical institutions o
institutions are going to lend
problems. They are going to c
cers in the improvement of our
new ideas. The men who today
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EDITO
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EDIT
Although he will always bguished service during the Worl
just as great a service to the
established a sound military pol
ever had-a policy that if follo
wastage, uncertainty of victory
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250 THE COAST ARTI
Then we know a Tractor Art
prospect of his ever again being b
Probably every officerserving
the inner conviction that the rea
in the air.
And there is the vivid memor
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EDIT
America at Work believes
way to extinction. We believe tsimply as an inference from ch
.already taken place. The passin
necessity for the special protectio
violence in great centers of civili
but as of yesterday. Its prophec
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COAST ARTILLER
shell as target practice projectiles. In
charge to give 2600 f.s. velocity was rand 1908 a charge to give 2100 f.s. vel
on file for the 90-1b. projectile fired at
the 2700 f.s. velocity. Itwas requested
to supply firing tables for the 2700 f.s.
Project No. 250, Test of Gu
Two gun cameras have been received f
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254 THE COAST ARTIL
a. That the Bureau of Standards b
master Corps specimens of the five heavie
No. 2-26C in comparison with specimens
Extra Heavy" oils, and that information
oils most closely corresponds in its c
"Gargoyle."
b. That a test be made at Fort H. G
to correspond to "N. F. 0." and "Gargoyl
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COAST ARTILLERY
b. That one sight- for the 3-inch Mo
permit illumination of the cross hairs.
c. That the materiel, modified as rec
Board for test.
Project No. 253, Canopy Tops-tO-
of the Panama Department reported tha
replacements, are necessary on the canop
the tops are to be retained in service. Th
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256 THE COAST ART
Department, conferred with the Coast
development of fire control devices for plotting board it was agreed that a d
Relocating Board should be developed
Board for long range batteries was su
Board has completed the study and
a later date.
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COAST ARTILL
11:00, and December 18th at 1100.
velocity is appreciable. However, attained was 1100 yards or less, w
expected in antiaircraft firing.
8. In order to ascertain the ex
moment affected the values obtained
minutes were made at Fort Monroe
7, 1924, with the idea of determinin
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258 THE COAST ART
the nearest established meteorological st
is not greater than 25 miles.
b. The Board further recommende
make comparative measurements or s
project, to determine at what distance
data cannot be assumed to be uniform a
artillery firing.
Project No. 207, Test of Azim
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COAST ARTILLERY
set the micrometer to 5 and see whe
decreasingdirection, as the pointer is tra6. The position of the elevation in
detail whomust lean considerablyto the
is intensifiedby the difficultywith which
that the most convenientposition relativ
by that detail. The azimuthindex is con
7. If the data is changing neither
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BULLETIN
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BULLET
ago, how the whole nation was stirred u
Baseball Series. You remember also hthe guilty players, and barred them fro
will not support any form of sport wh
violates the rules is not only hurting h
slogan which I suggested for our footba
adopt for our game of life: "Fight har
The third essential in the game of
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262 THE COAST ART
those about you interested in their wo
you at the right time will do wo;ndemen away from home for the first tim
can cheer them up. Some of them m
know to be tough. All they need is a
by the arm, and talk to him as if he w
Finally, you can help most by yo
right yourself If you go around with
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BlTLLET
Every effort is made to insure th
are sent to the appropriate branch or bother executive department as may be
The second division of the Gener
central coordinating agency of the War
military attache offices abroad. This
agency of the " \ \T ar Department for th
tion concerning our military establishm
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264 THE COAST ARTI
M. P. work, lack of news preventing us
situation well in hand.
The },[erritt arrived in Yokohama oSome buildings appeared to be standing
were only skeletons, the entire city b
immediately gotten in touch with, and
Lieutenant Clark, M. A. C., and I wer
Lieutenant Colonel Sunderland, G. S.,
l di d d h
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BULLETIN BO
big dump for relief stores. From this poin
various relief organizations, such as the Amer
schools and hospitals.
The night the Japanese were mourning
spent by the advance guard. Lying in our te
of the coolies in the distance, each verse endi
Shortly after the mourning was well under w
chanting ceased for a moment and then beg
feeling; I kno for m part it o ldn't ha e
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266 THE COAST ARTI
All through our stay in Japan, the d
were so closely bound up with the tasksthat it is hard to pick out anyone job a
we of the C. A. C. did our best to coop
sented in the mission, and, I believe, su
The remaining four days of our tour
the country under the auspices of the J
f th r ti ffi i l
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BFLLETIK B
sioned staff officers to become dissatisfied wit
own class. The present inequality creates a
appointment in the noncommissioned staff, to
inclinations and abilities, enrollment in those
which appear to afford the most rapid prom
Under the single promotion list noncom
moted to master sergeants and technical se
the list, without regard to class, Le., wheth
geants major, or radio sergeants. Master s
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BULLETIN BO
Report on Fund Raised for R
To enable the Coast Artillery Rifle and
highest degree of efficiency, the Chief of Coas
raised from among the commissioned person
suggestion, THE J OURN AL undertook a campai
manding officer of each District and Coast De
date, $562.92 has been collected and turned o
Team Captain.
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PROFESSION
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1'ItOFESSIOXAJ. X
morc cxpcrimcntal work hcforc hcin~ suitable
muzzlc end of the .lo7-inch gun will he noted ano
mcn, thc mU7.z1chrakc, this is still howcvcr in tteristics arc as follows:
Length of horc in calihers, .~2: muzzle ,'clocit
Ihs.: tra\'l'1 of projcctilc, 176.53~ ins.: wci~ht o
5un II".:rcma rks, slidinp: hlock: scmi-automatic:
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THE COAST ARTIL
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PROFESSIONAL
believed to be a distinct advantage for most
believers in high muzzle velocity.Figure 2 shows the new 3-incll ~fobile Gu
the gun mounted on a fixed mount for test pu
the materiel are given in the following table:
GUN: Length of bore in calibers, 50; muzz
jectile, 151bs.; weight of charge, 5 Ibs.; twist o
powder chamber, 200 cubic inches; volume of
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274 THE COAST ARTI
deadly agencies as arise as agencies of w
when gas comes in, just as it was revoltance melts away, and the new agency
Unquestionably there is to be a fu
bubmarine, the airplane are merely item
that can be seen from this is that it ou
steeds, the waving pennons, the ridiculo
the popular mind are associated with w
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276 THE COAST ARTIL
expression in the military professional p
foreign press also, apparently induced enacted and proposed measures on the s
the infantry and other subjects that we
itself into the expression (which the aut
essay): "Shall Materiel Overcome Moral
the individual soldier be submerged un
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PROFESSIONAL NO
The Keystone of Our Nat
ByCAPTAIN W.
H.
(REPRINTED WrrH PERMISSIO:>l FRO
Despite many pacifist or "no more war" so
reality in many parts of the world. Competition
intense, and most of them are in debt to us. W
keep clear of entanglements? Yet we casually
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278 THE COAST ARTILL
taken rvery enning; the shelter tents h
natetl; in fact, the only thing these maneu
If there were an enemr, he would, af
march overland, directing his attack at Pe
landing were on the Pacific side; Gatun o
this manner he would march around our f
hi~ pleasure. To meet this probable mane
take the field. This force of 4500 would
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PROFESSIONA
Rapidity of Fire of
The following paragraph appeared iarticle entitled "Artillery Fire":
Unfortunately, the gun's life is only arapidly without decreasing this life. Theround in one and one-half minutes. Besidreplacement and retubing are not sufllcround in three minutes
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:I':ROFESS
The battery position here was
batteries. Itwas exposed and the
Five practices were conducted from th
at, the shorter ranges and indirect fir
of the series was for calibration, all
The practice of May 24th was fired p
Celebration of the CORstArtillery Sch
yards, the last two practices being h
282
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282 THE COAST ARTIL
gasoline prohibits adequate individual t
marches and the occupation of different
This allowance should be materially incre
Airplane Su
A new turbine supercharger for airp
cifically for extreme altitude operation.
pressure to the engine at a height of 35,0
d i th i A i ltit d
-
7/31/2019 Coast Artillery Journal - Sep 1924
98/98
.\ttention is invited to a letter from Lie
tiw Assistant to the Chief of Coast A
publication too late to be included in
its source and importance warrant. T
and is a reply to Major E. J. Cullen's
the JOURNAL, entitled "The Functions
Po"itive Systl'm of Coast Defense."
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