Daily evening star. [volume] (Washington [D.C.]) 1852-1854, 1854-07-08
STEAM MACHINERY FOR q. s. STEAM
FRIGATES

J,
PROPOSITIONS will be received e. this depart
l. ment until the first day of August next, fcc III
complete construction of the steam machinery anC
appendages, and placing It on board of five au1ili
ary screw steam gates, to be at least 255 feet IL
length, and of 3,0G0 tons measurement one of hicf
s building at each o. the United States navy yard
at Boston, New Yerk, ard Philadelphia, and two e.
Nerfolk.
Az patent ices for any arrangement that may b
proposed, and must state the period within Hlict
the work can be completed.
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
machinery for hosting, ventilating, pumps &C.
With aQpurtenances OF all kinds, must be these
most approved for m 'rine engines. The tools and
duplicate pieces necessary for an efficient cruising
ship-ofwar, list of which must accompany the
proposal, and also the coal bunkers, must be inclu
ded.
All the wood and carpenter work necessary te
adapt the vessel for the reception of the engines
boilers propeiiers &c, will be at the expense of the
Navy Department. at it will furnish the usual IA
cilities and labor for huisting the machinery on
boald.
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 % fe It. IL
Guiding 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 az #
and the height from the timbers to the bottom ot
the beam II f.et the area of the section being 662
square feet.
The weigh: Of all the steam machinery, water in
the boilers and coal within the space given, aud in.
Guiding the propeller and shsf with appentages Of
all kinds and spare pieces has been estimated at 1876
tons OF 2O pounds, OF which $50 tons is for coal.
The distance between the main stsrn-post, and
the ruder POST may be Fix feet if that length is
cessary for the propeller in fore and aft direction,
and the depth from the load stsr line to the top OF
the keel under the propeller win be u feet The
length from the maiamast to the sternpost will be
about liz feet The area of the greatest immerred
transversed section to the deep load line will be se5
square feet. - --
AS auxiliary steam frigates the spars and rigging
will be those efa fgate Of the first class, of 1s0O
tons measurement.
The particular arrangement of the macl inery will
be left with those whose propositions may be accept
ed as combining the greatest number Of advantages
the desire Of the department bein. to obtain the
greatest speed and power with the most economical
consumption Of fuel, which the space available for
that purpose Will admit.
The terms of payment will be as follows: when
onethird of the work psvid ded for by the contract
ehal have been completed to the satisfaction of the
department, there shall be payment of one fifth of
the whole amount Of the contraet; when two thirds
of the work shall, in like manner, be completed,
there shall be further payment of one fifth. when
the ship shall have mads 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 hail have been in possessirn of the
department., and performed satisfactorily for six
months, the remaining sum shell be paid; the re.
pairs necessary during this period, from defective
workmanship and material, being at the expense Of
the contractor.
Each proposal must specify the ship for which
the offer made and must be accompanied by full
aud complete specifications and drawings, which, II
desired, will be returned those whose Offers may
not be accepted. 1t must also be stated at what es
Enlistment the work is to be done.
Esch proposal must be accompanied by q guaIan
tee that the contract, when awarded, will be faith
laly performed, and the successful bidders Will be
required to enter into security for that purpose IL
the of threefourths the amount of the contract
j. Q. DOBBIN,
jy l-2awtiAug Secretary of the .javy.