Daily evening star. [volume] (Washington [D.C.]) 1852-1854, 1854-07-24
STEAM MACHINERY FOR q. s. STEAM
FRIGATES,

" NAVY DIpARTMENr, July ], 1854.
! DROPOSITI0N6 will be received at this depart
l. ment until the fret day of August next FORTH
complete construction Of the steam machinery AMI
appendages, and placing 1t ON board of fYs auxili
ary screw steam frgates to be at least I55 feet il
length, and OF 900 tons measurement, ofwhicl
ls building at each of the United States navy yard
at Boston, New York. and Philadelphia, and two Al
Nerfolk. -'-'
Each off.r must be for specific sum, and incIud,
al patent fees for any arrangement that may b,
proposed, and must state the period within which
the work can be completed. s
The boilers are to be of iron, with telescope chin
neys; the propeller, with the connexions for hoist
Ing up, Of composition. The fresh water condensers
With appurtsnances OF all kinds, must be these
most approved for m srine engines. The tools and
duplicate pieces necessary for efficient cruisnp
| shlp-ofwar, list of which must accompany the
proposal, and also the coal bunkers, must be nclu.
ded.
An the wood and carpenter work necessary to
adapt the vessel for the reception of the engines
boilers propellers &c viii be at the expense Of the
Navy Department, and it will furnish the usual ia
cihties and labor for hoisting the machinery on
board. -
For the accommodation of the entire steam ma
chinery with fuel for ten days consumption, at the
average speed at load draft Of water of % fest in
ciuding the keel length not to exceed 60 feet can
be allowed in the body Of the ship, including the en-
tire space under the birth deck. The greatest
breadth Of this space under the beam will be al IT,,
and the height from the tmbers to the bottom OF
the beam II feet the Of the section being 662
square feet. -"
The weight Of all the steam machinery, watet in
the boilers and coal within the space given, and
Guiding the propeller and shaft with appendagss of
all kinds and spare pieces, has been estimated at 735
tons Of 2a0 pounds, Of which $50 tons is for coal
| The distance between the main stern-post, and
the rudder post may be six feet if that length Is ne
cessary for the propeller in fore and aft direction
and the depth from the load water line to the top Of
the keel under the propeller will be 2l feet. The
myth from the mainmsst to the sternpost win be
about liz feet. The area Of the greatest immersed
snsversed section to the deep load line will be s65
square feet
As auxiliary steam frigstes the apers and rigging
will Be those Of frigats Of the fSe Glass; Of $500
tons measurement.
The particular arrangement of the machinery will
Do lett with those whose propositions may be Accept
90 as comblnlng the greatest number Of advantages
the desire of the department being to obtain the
greatest speed and power with the most economical
consumption Of fuel which the space available for
The terms Of payment will be as follows when
onethrd Of the work prsvi ded for by the contract
shall have been completed to the satisfaction Of the
department., there sha!l bs payment Of Onsffth Of
the whole amount Of the contract; when two-thirds
OF the work shall, in hks manner, be completed,
there shall be further payment of one fifth when
the ship shall have made trial trip, satisfactory to
the department, OF not less than one week at sea,
| there shall be further payment of one fifth; and
when the ship thal have been in posssssirn Of the
department, and performed satisfactorily for six
months, the remaining sum shall be paid; the re-
pairs necessary during this PERIOD from defective
workmanship and material, being at the expense of
the contractor. ftfs-'. |
Each proposal must specify the ship for which
the offer Is made and must be accompanied byl full
and complete specifications and drawings, which, if
desired, will be returned 10 those whose ofie1smay
not be accepted It must also be stated at what e.
tablishment the work is to be done. s.,- | -,
Each proposal must be accompanied by Q guSran-
tee that the contract, when awarded, viii be Aith.
fully performed, and the successful bidders win be
required 70 enter into security for that purpde In
the sum OF fourths the amount Of the contract
- -. ,l..t ,T ID G. DOBBIN,
3y l-2awtlAug Secretary of the Navy.