Journal of the United States Artillery, Volumes 8-9Coast Artillery Training Center, 1897 |
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... PROBABILITY OF HIT WHEN THE PROBABLE ERROR IN AIM IS KNOWN . - Professor Mansfield Merriman , Professor of Civil Engineering in Lehigh University II . A REPLY TO THE REPORT OF A BOARD ON SEA - COAST MORTAR FIRE . First Lieutenant J. T. ...
... PROBABILITY OF HIT WHEN THE PROBABLE ERROR IN AIM IS KNOWN . - Professor Mansfield Merriman , Professor of Civil Engineering in Lehigh University II . A REPLY TO THE REPORT OF A BOARD ON SEA - COAST MORTAR FIRE . First Lieutenant J. T. ...
Page 129
... PROBABILITY OF HIT WHEN THE PROBABLE ERROR IN AIM IS KNOWN : WITH A COMPARISON OF THE PROBABILITIES OF HIT BY THE ... probability of hit " means the probability of hit- ting a target when one shot is fired , or if several shots be fired ...
... PROBABILITY OF HIT WHEN THE PROBABLE ERROR IN AIM IS KNOWN : WITH A COMPARISON OF THE PROBABILITIES OF HIT BY THE ... probability of hit " means the probability of hit- ting a target when one shot is fired , or if several shots be fired ...
Page 130
... probability of hit on the target or deck whose area is 4a A. A SMALL TARGET . When a and A are very small a simple expression for the prob- ability of hit may be ... probability of hit for 130 THE PROBABILITY OF HIT WHEN THE PROBABLE.
... probability of hit on the target or deck whose area is 4a A. A SMALL TARGET . When a and A are very small a simple expression for the prob- ability of hit may be ... probability of hit for 130 THE PROBABILITY OF HIT WHEN THE PROBABLE.
Page 131
... probability of hit for the small strip whose width in range is 2A and whose length in azimuth is in- finity . To find the probability of hit for the area 2ax 2A these expressions are to be multiplied together , and Q = qa ' = p2 4a A π ...
... probability of hit for the small strip whose width in range is 2A and whose length in azimuth is in- finity . To find the probability of hit for the area 2ax 2A these expressions are to be multiplied together , and Q = qa ' = p2 4a A π ...
Page 132
... probability of hit in azimuth is given by ( 11 ) . The integral in ( 11 ) is the well known probability integral of which tables are given in all works on the theory of errors . The most convenient table is that in which the values of ...
... probability of hit in azimuth is given by ( 11 ) . The integral in ( 11 ) is the well known probability integral of which tables are given in all works on the theory of errors . The most convenient table is that in which the values of ...
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510 Marquette alternating current American armor arms army Artig artillery ARTILLERY SCHOOL attack August August 14 axis azimuth ballistic battery battle Bi-monthly bicycle bullet bursting caliber cannon carriage cavalry charge command conical surfaces construction cruiser curve defense Diff distance Elec Eng'rs Engineers equation explosive feet field artillery field guns fleet fork limits Fort Monroe fortifications French front gunner howitzers infantry Inst Iron Age Island Jour Journal July 17 July 24 July 31 June Marina means method Militaire military Monthly mortars Napoleon Naval Navy November observed October Paris piece plate Plevna position practice prism probability of hit projectile range finder rear recoil Revue rifle round Rundschau Russian September shell ship shots shrapnel smokeless powder steel Street surface tactics target Tids tion torpedo trajectory troops tube United velocity Weekly yards York City ΙΟ бо
Popular passages
Page 209 - Goodall backed me ; I got him to write to the Admiral, but it would not do : we should have had such a day, as I believe the annals of England never produced.
Page 210 - Captains are to look to their particular line as their rallying point. But, in case signals can neither be seen or perfectly understood, no captain can do very wrong if he places his ship alongside that of an enemy.
Page 397 - ... buildings; better adapted for a citadel than for defence against an open enemy; the houses are, in many places, higher than the walls and bastions and render these wholly exposed; most of the houses, also, have cellars not eight rods distant from the wall of the fort, in some places not...
Page 397 - While Great Britain is undoubtedly the most formidable of our possible enemies, both by her great navy and by the strong positions she holds near our coasts, it must be added that a cordial understanding with that country is one of the first of our external interests. Both nations doubtless, and properly, seek their own advantage ; but both, also, are controlled by a sense of law and justice, drawn from the same sources, and deep-rooted in their instincts.
Page 214 - ... abandoned till war itself shall cease ; but regarded as a primary and fundamental measure, sufficient in itself to crush an enemy, it is probably a delusion, and a most dangerous delusion, when presented in the fascinating garb of cheapness to the representatives of a people. Especially is it misleading when the nation against whom it is to be directed possesses, as Great Britain did and does, the two requisites of a strong sea power, — a wide-spread healthy commerce and a powerful navy.
Page 51 - ... Island. Here he continued unmolested by the neighbouring enemy, from the beginning of July, till the latter end of autumn, when he retired to take up his winter quarters in huts which he had caused to be constructed at Middlebrook in Jersey. According to the prognostic of the British ministry, the Count d'Estaing, with a fleet of twelve ships of the line and three frigates, arrived off the mouth 'of the Delaware in the month of July ; but found to his mortification, that eleven days before that...
Page 209 - It certainly was so," replied Jervis, " and if ever you commit such a breach of your orders, I will forgive you also." Success covers many faults, yet it is difficult to believe that had Nelson been overwhelmed, the soundness of his judgment and his resolution would not equally have had the applause of a man, who had just fought twenty-seven ships with fifteen, because "a victory...
Page 397 - For sale by booksellers generally, or will be sent, postpaid, on receipt of price, by the publishers, AC McCLURG & CO. CHICAGO A WORLD PILGRIMAGE.
Page 397 - For these reasons he recommended " a good blockhouse and Fort of 50 guns." " Further and lastly " he ends his report, " an enclosed battery of 12 or 13 guns ought to be erected at the narrowest part of Hellgate, to prevent the entrance of an enemy at that point also. All this being done I am persuaded an enemy will bethink himself a hundred times before he will meditate any attack upon New York." April, 1702, Lieutenant-Governor John Nanfan urged in his address to the Legislature, that the fortifications...
Page 307 - ... caps within eight hours, stamping, filling, preparing, and varnishing them. These cap machines thus had a capacity of producing a million a day. These caps made at the arsenal were frequently tested, and pronounced to be superior in resisting effects of moisture and in general efficiency. For the completion of these machines, the Confederate government awarded the inventor, an employee of the arsenal, the sum of one hundred and twenty-five thousand dollars, being then equal to two thousand in...