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- Pridružio: 03 Okt 2011
- Poruke: 3579
- Gde živiš: Tanhauser Gate
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Napisano: 06 Sep 2014 18:14
...a i municija za 75mm haubicu je bila drukčije konstruisana jer su granate imale tzv. boat tail, tj. završavale su se konusom. a jesi li siguran da je M17 top jeo M61 zrna jer je pravljen za francusku municiju za to Mle.1897?
Dopuna: 06 Sep 2014 18:31
...da jeli su istu municiju 75x350R.
Dopuna: 11 Sep 2014 21:01
iz knjige "The Story of Ordnance in the
World War" Sevellon Brown o proizvodnji 75mm topa u Americi.
Citat:THE REDOUBTABLE 75.
Mounting in the scale of sizes, we come to the 75-millimeter
gun. This weapon played the most important role in the victory of
Allied arms; it practically dominated the battlefields of Europe.
The Ordnance Department from the beginning stressed its production
to the point where for every gun of another size produced we
turned out a 75. It thus constituted in itself one-half of our entire
artillery program.
In the production of this class of weapon the Ordnance Department
had to begin practically from the "take-off." We had no
model of our own in production that could be adhered to, our equipment
in this class of weapon when we entered the war consisting of
640 three-inch field guns of the old 1902 model. In the evolution of
Ordnance the limited elevation and traverse of this weapon had
rendered it obsolescent. The Ordnance Department faced the undeniable
fact and did not yield to the poor argument that because
this model might be produced with greater facility than a new one
it should be given preference. The split-trail design of light field
gun had been demonstrated to be immeasurably superior. It permitted
far greater elevation of fire by letting the gun body swing
down between the divergent trails and also a wider traverse movement
of the gun than was possible with the single-trail carriage.
Fortunately, the Ordnance Department had itself in 1913 begun the
development of a split-trail carriage design. A model of this design
had been thoroughly tested and an order for 172 had been placed a
few months before we entered the war. But no facilities had been
established and the 1916 model of carriage, as it is known, had in no
sense come into production.
Early quantity production in this class of weapon was recognized
as the paramount necessity. The French 75-millimeter
gun was recognized as the premier weapon of this class and every
effort was made at once to transplant its manufacture to this
country. But delay and uncertainty in getting production under
way were seen to be inevitable. It would have been imprudent, indeed,
to hold up all other production until this could be done, yet the
Ordnance Department was criticized in many quarters for splitting
up its program in this class of weapon instead of concentrating
from the beginning on the French 75.
The Bethlehem Steel Company had been manufacturing carriages
for the British 3.3-inch gun, capacity was there ready to be
utilized to the limit, and the Ordnance Department wisely determined
to use it. Orders for 1,427 of the British type of carriage
were placed in rapid succession with the Bethlehem company, beginning
in May, 1917. Simultaneously, additional orders were
placed for 755 of our own 1916 model. These orders constituted a
very wise alternative to the French 75 project. Shortly after they
were placed, the Ordnance Department reached the momentous decision
to make both types of carriage conform to the French 75-
millimeter size—slightly less than 3 inches. Here, indeed, was
a master stroke in our war-time ordnance preparation. Munitions
production was simplified enormously by calling for the manufacture
of a uniform size shell for this class of gun, and above all it
gave us interchangeability of ammunition with the French on the
battlefield.
The problem of getting sufficient gun bodies produced for the
75-millimeter units was far less vexing. Orders were placed for
these concurrently with the carriage orders and their production
was well timed with the other program. Three types of gun bodies
were built, the American, British, and French type, but all of the
7 5-millimeter bore.
Meanwhile all plans for getting the French 75 carriage under
production were being held up because of difficulty and delay in
getting the drawings. The first drawings were not received until
August, 1917, and complete data were not in hand until the following
April, more than a year after our entry into the war. Many of
the measurements the French themselves did not have upon paper.
In producing the superb recuperator mechanism of these carriages
they relied extensively upon hand fitting and deviated considerably
from blue print dimensions. Finally, all drawings as received had
to be translated into our units of measurement, which constituted
one of the greatest tasks involved in the French gun projects.
Construction of the recuperator systems on these guns presented
the most formidable challenge to American industrial and
technical skill that it has perhaps ever been called upon to meet.
Such exquisitely fine workmanship was necessary in the production
of these recuperators that French ordnance experts were skeptical,
and justifiably so, that the American mechanic could be trained in
their production in time for their use in the war. Although the
superiority of the recuperator on this as well as on the larger
French guns was universally conceded, Germany had never been
able to make them, and England, with the assistance of French
ordnance experts freely offered at the beginning of the war, did
not attempt them.
By December, 1917, complete drawings for the carriage of the
French 75 had been received and an order for 3,049 of them was
placed with the Willys-Overland Motor Car Company. Not until
February, 1918, however, were all specifications for the recuperator
in hand. After a thorough canvass of all industrial establishments
that might be induced to undertake the manufacture of this
mechanism, the Singer Manufacturing Company, producers of sewing
machines, finally consented to do so, and in March, 1918, they
accepted an order for 2,500 recuperators. The following month
1,000 additional were ordered to be turned out at the Rock Island
Arsenal. When these recuperators began to come through, it
marked their first production in a factory outside of French territory.
When hostilities ceased American factories were turning out
carriages for the three types of 75-millimeter gun at the rate of 393
per month, a total of 1,221 having been delivered up to that time.
The production of gun bodies was always ahead of the carriage
output. At the rate of increase in carriage production we would
have been turning out 800 carriages a month by February, 1919.
To equip our divisions in France before it could be hoped that
American factories could attain quantity production in 75-millimeter
material, the Ordnance Department took advantage of excess
capacity in the French shops, and beginning in June, 1917,
placed orders with the French Government for a total of 2,806 75-
millimeter guns, of which 1,828 had been delivered when the
armistice was signed. But the rate of output attained by our own
ordnance preparation would have been sufficient to supply 75's for
our entire projected army of 3,360,000 men on the front in the
summer of 1919.
Dopuna: 16 Sep 2014 15:19
88 nije toliko ni rijedak, ali mehanički tempirni upaljač ZtZ S/30, odnosno 8,8 cm granata kompletirana ovim upaljačem itekako jeste. Današnji pronalazak, okolina Sarajeva, upaljač je proizveden u tvornici S.A. Tavaro, Ghent, Belgium.
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