The sun., 1894-10-10
MATNE,s TRIAL ON MoNDlY.
Erpseted - Earn a Preuiu= Nsr Hsr NJ
gtns Ruildsrs.

Erpscted - Earn PreuaiuH Nsr Hsr En-
sins Bpiiasrs.
WASHINGTON, Oct. p.-Secretary Herbert is-
sued to-day the formal order for the oficial
trial Of the machinery Of United States armorcd
cruiser No. 1, better known as the Maine, In the
form Of letter Of instruction 10 Chief Engineer
Samuel L. P. Ayres, notifying him of his ap-
pointment ss President Of the Board, and Chief
Engineers Henry g. Ross and George Cowie rs
members, and directing them to assemble at
New London, Conn. at 10 A. NJ. on Monday
next, Oct. 15. The following junior engineer Of
hcers have been ordered TO report 10 the Board
| as assistants; Passed Assistant Engineers Rob-
| ert I. Reid, y. g. Bryan, Edward II. scribner.
| Frank w. Bennett, and Gustav Kaemmerling;
Assistant ngineers Charles Z. Rommell. Charles
| H. Hayes Oscar w. Koerster, Robert X. Crank
Stanford E. Moses, and J. T. Myers. These on
GERS are TO take and compute indicator diagrams
and to observe and record data.
The Board will see that these officers are sta
toned 10 the best advantage and are acquainted
with the duties required of them, so that there
may be no failure OBSCURE information through
lack OF acquaintance with their duties ON the
part Of any one Before the trial a test will be
made of the system adopted for securing data,
To assure It's working perfectly.
The official trial OF the vessel will consist of
run for four consecutive hours, during which
careful observations are to be made for accu-
rately determining the indicated horse power
developed by the machinery. The contract re-
quires that the aggregate horse power Of tho
propelling air pump and the circulating pump
engines shall be 1900 as the average for the
four hours. For the purpose Of accurately de-
terminlng the horse power of the main engines,
the four hours will be divided into eight
periods OF thirty minutes each. During the
first ten minutes Of each period. the regimen OF
the machinery must not be changed in any par
ticular, except In case OF actual necessity to
avoid an accident. During the succeeding ten
minutes such alterations of stop and throttle
valves. cut-ofrs, &C., may be made as are deemed
necessary, provided they are not for the purpose
OF "bottling up" steam for the next record
period, but such changes must not be made dur
ing ten minutes preceding the taking OF indi-
Gator diagrams.
During the first ten minutes of each period an
Of each OF the cylinders Of the main engines and
as nearly simultaneously as possible.
To secure the revolutions q the main engines
accurately two counters will be fitted to each
shaft, One OF the counters on each shaft to be
supplied from the New York NAVY Yard will
be fitted with electrical detachinR gear. These
counters will be thrown into gear at the begin
ming Of ench ten-minute period, and thrown out
will be read at the beginning and end OF each
ten-ninrte period as a check. and to insure
down; but the record Of the latter viii be taken
in every case, unless there is good reason for be-
Heying that 1t has got out of order.
While the determination OF the power OF tho
machinery is of first Importance, the Board has
no control over the machinery, but merely over
the instruments for recording data, and the con-
tractors and their men are not u be interfered
with In the management Of the machinery.
The steam pressure ut the boilers must not at
any time he more than i've per cent. In excess OF
the designed pressure, which in this case Is l35
pounds, 50 that the limit will be lI2 pounds.
The report OF the trial IL to be made TO Engi-
neer- -in-Chief George w. Melville. and in show
hn N al nnt mod lltyiyn
the weight of all tile machinery, OF The water in
the boilers, and everything connected with the
engineering department: The Board is 70 re-
gincs, boilers, and appurtenanccs, Is strong AMI
well built and in strict conformity with the con-
tract, and whether the working Of all parts is
satisfactory.
The Maine stands to win good deal of money
horse power she makes over tho 5000 OF ths
contract, and penalty OF $500 for every horse
the engines would he rejected. Little doubt Is
expressed At the Navy Department that she will
In order TO secure a crew for the cruiser
Minneapolis. Secretary Herbert has decided to
put the coast defence m0nitor Miantonomoh
board that vessel. The Miantnnomoh requires
extensive repairs, and. instead OF allowing her
to make at the League Island Navy Yard. their
services will enable the Government To make
stood that hat When the 6lympia m is ready for T com
mission the crew of the Monterey will lie trans
,Srred to- that snip; ana that TIE po!icy a. put
pairs are required Is now fairly inaugurated.
Heretofore the enlisted men Of ships cruising
time, and the navy has suffered severely from
the practice. The expensive New Y"rk. with
up at New York for the past six weeks, and the
san Francisco practically twice as long. The
Atlanta has also had extended experience In
navy yards at excessive Government expense.