New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1891-03-15
WORK AT THE NAVY YARD
REPORT on THE BENNISGToNS TRIAL
SURPRISE AT THE EEsULT-THE LANcASIEH IL
RE PUT INTO COMMISSION.

,rt;s old sixteenth century stanza expresses shli'i
want OF confidence as in inc hI't r'Po'" WV
EMO success, Of the cruiser Bcnnngtons steam Ui@l'
NV -, rcn,uarv IS when SHE credited with hav-
i do,cIoncd 34-17 horsepower, or II UNITS III OK
~ If the requirements. and which, II correct "oui"
49,, i,.or =, fine contractors who built the vessel Il
,,iup, NJ s717O. The dispatch from Washington
Yesterday to tie effect that the Official report oil inc
hoard Of engineer experts showed that INC 'raI Oh VIC
bennington indicated deficiency OF ol3l IN tc ''4oo
horse power required by the contract was surprise
IN officers The horse power IS worked out from the
Indicator cards, which pieces OF paper upon VIII"
is traced in pencil the actual working Of the engines
rho indicator Is small rolnd cylinder provided with
automatic sprinc, and valves which are acted upon
after the instrument is put in COMMUNICATION WIN INC
steam and vacuum spaces Of the cyndcrs by attaching
it directly To the cylinder
The movement II the pencil which traces on the
paper or card epond~ with the motions o' the
uiston in The main e., Under and the prc-NureS After
noting the actual steam and vacuum prcSNlrcs, ana
the revolutions OF the engines, thr h"'N'p""'r i
worked out from the tracinS> OF the cards. Before
the indicators are put on vessel FOR Use in trial
they are tested and any naccurag in their WorNlnS is
noted In order to obtain the actual results of trial
the Indicator cards after they have been worried out
are corrected by applying the results o! the Indicator
,c,t After the trial of the BENNINGTON il desired
- give ont as soon ~ possible the approNlmat" results
of the ti;a The iour hou:, ~ the trial Nld been a.
vdcd into sixteen periods ~ fifteen minutes earh.
one of these periods Wa selected q, an aNc-c ana
the Indicator card, Tor thi. wcfr worked mp Tic
average number - revolution, Of tn, were taken
and the horse power computed ~ cours" ms woul'
give only - rough average. and hc.i3cs the in'"'Fcr
tinn, II the indicator, not taken into a'''lni
C0n.cuucniv. tho, who were thoroughly acquainted
with the method, % the trial Lew MAT III" h;nrr' a.
given ont directly after the tr'l. "cr" not ''rr',''
When IN. long operation f carefully and c"rr'iE
WORKING up the Indicator cards was completed = r."
DAYS AGO the result, showed that IN" WORKING "i ti'
engines had been largely overc-ilnatcl.
Passed Assistant Fncirrcr T. II. E'dndce. Of I'd"
steam Engineering Department iu the Navy ana. hau
been detailed rs q member u the trial b"''N 81 III,
bennington and be- did not return t. IN" N'Td uih'
Friday. lcine detained board The vessel "''h'"F
mn the Indicator cards. Being a-hcd iy rp'r'"'
Of The Tribune he CAV" the reason a- above l'r VIC
mistake I'm the first reports of TIE trI1 and ALL spoke
- tne reason WHY the Bennington "a n'i 800" -
satisfactory results hor sister -hp' ''' ''''''
lie said tla there were tvo opinions 90 !" inc
some thip, that tine u1u.i" We, ilit i' b'''' "'
no. ,..uorai. sufficient steam for tn engine. I'D '}
ing vc,-cl, Mumirou- coal D, genera" "-''' ''' 90
rho trial, Of the concord and of the BENNINGTON 81
| ,b-,c,o coal mad been employed. Those Nh" "''"
.his or,ni,n think thai by using anthracite '''i H.
| toad Of the very soft pocahonia' blnmh'u' ''i
which na, been much used OF late IN he 'Il' o." nav
| vessels the boiler dd not generate tenn ~ 'I'''
! a, they would have done W. - oc ,l,.,
/ sot.bcd trial which wa held ou February 20 ,''''
.,o q tow leak. I'm IN. boiler. lur these h.H ''.'
/ ,o,od Lcf,rc the final trial, t"o DAYS "''r' u
! f., al, tr,,uclt thlt the iault Les III the
! york Of the nrcmcn-,Iat Il they h'4 o'n'
! their work properly the results """' nv -,
] better. The engines worked eN'''', .,
/ T,Tc,.I,y j. p,h,bly in connection with ihe h'','''
,rno ,r,,, ~. conducted and MANAGED entirely by
Tho contractor. ard the naval officers Who "cr 'H
hoard were merely representatives OF ln'
! They were % tguccd MT o. get IH ''' Wa - w.
/ contractor, and not 70 Interfere lH am way "',
! trial. Their dutic- were &" 'i"' n''' w ,''
parmout, 81 the trial, ana h'c'NaN y" ''P'' -
| board and individually 10 I'VE "P" 100
! their note, ard oh'r:'a'l"h- am '"--
change or Improvements WIG" '''' NJ
| II is ~ad tha' secretary Tracy "'' -''".'
| t. the contractors T." nave "i''"' "'''
| probable Tat they VIII ith' "''''''-' W 90"
| try T. iuprpyr tho record ~ TIE sH'P' u WI" !"
remembered th1' -'voril "l o." nc" N'r''' i'' A'
mor. u,su one trial, Tie Petrol having 49, many -
| folr u 81" tr.h Of IN" l'hul"-l"n '''.> '"''I
worked satisfactorily excepting l'' c~."''' '"'
| Il another tai j. i'IH " VIII ~ '"'"'' - '''' "
/ power trial.
The Concord. OF winch N'-''i 4" "'''.''"' "''' wa
! held f." weeks ago. b. 'ip'' '' .- '' ''''' "
she Will be ready for active 'i\i"' p''"- TIC
| lat week -h' tt- been H'''' H'" 'F "''''"e
! ncar tho timber dry dock o. the 'i"h'h'' b'h' u
Obtain h". battery. Two 81 TIC -W'' Z" 'I' p'I'''-'
battery nave be'- h'.''' "H '"'' '''' "'''"' '
! 'he 'aiiI''''' ''' WIT" ~ q"
| ei'"E" - 'ri" "''' ' t'
! li'" ''," ''I'.'-'' "n ''-' '' ' WV ''
"''' I''''' "' '' '
| c'uh''Fit me "'I-E' u '' N''' 'l "''
Other -H'' h"' 'tI' l'' 1871 ''''' /" "' S''' Wit
"hl'h inc guns were h''H'''' WI ''' '""' D. '''
."I Oh fi'"N' Ut" '''''' ''"'' '"' pc "''c'' "'
| turner a"'H"' I" '"'"' va t''' ~ ." "'"''','
lhcy WILL h'"'N'I' '"'" ~ ,'''''''' az" "'" 'I';
"'hef wv" -'"' 90 '"' p"'H '''''E wa d. P'' "'''
| pI''r' 'N''i "'' @ ''' Will
m''h"u Oh u'' '"' P.'""' "',''' '''''''
! II SIX HN'h f"i'' i"' 5''"'''1 "'''H consist
| ~ w" 'P''''' r
Iapid h''"| s'.''' wv 90 ''''''', ~ ''''''''
| ana Nv" SNORT t'""'- S"''' '' "-e''N "''' MOI