Daily evening star. [volume] (Washington [D.C.]) 1852-1854, 1854-07-11
STEAM MACHINERY FOB q. s. STEAM
FRIGATES.

NAVY DEPARTMKNT, July !, 1854.
DROPOSIT1ONS will be received at this depart
ment until the first day of August next, for the
complete construction of the steam machinery and
appendages, and placing it on board Of five auxii
ary screw steam frgates to be at least 255 feet in
length, and of 600 tons measurement one of which
is building at each of the United States navy yards
at Boston, New York, and Philadelphia, and two at
Nerfolk.
Each of. must be for specific sum, and include
al patent fees for any arrangement that may be
proposed, and must state the period within which
the work can be completed.
The boilers 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 appurtenances OF all kinds, must be these
most approved for m srine engines. The tools and
duplicate pieces necessary for an efficient cruising
ship-ofwar, q list Of which must accompany the
ded. =
All the wood aud carpenter work necessary to
adapt the vessel for the reception of the engines,
Navy Department, and it will furnish the usual fa-
cilities and labor for hosting 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
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 II IT,,
and the height from the timbers to the bottom of
the beam II feet; the area of the section being 662
square feet.
The weight Of all the steam machinery, water in
the boilers and coal within the space given, and in
cluding the propeller and shaft with appendages of
all kinds and spare pieces has been estimated at 735
tons Of 24O 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
cessary for the propeller in fore andat direction
and the depth from the load water line to the top of
the keel under the propeller will be 21 feet. The
lie ngth from the mainmast to the stern.post will be
about liz feet. The area of the greatest immersed
transversed section to the deep load line will be s65
square feet.
AS auxiliary steam frigates the spars and rigging
Will be those Of frgate of the first Glass; OF 1880
tons measurement. Il
The particular arrangement Of the machinery will
be left with those whose propositions may be accept
cd as combining 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
that purpose will admit.
The terms of payment will be as follows: when
onethird of the work prsvi for by the contract
shall have been completed to the satisfaction Of the
department, there shall be payment of onefifth of
the whole amount of the contract; 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 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 lhall have been in posseesrn 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.
Each proposal must specify the ship for which
the offer is made, and must be accompanied by full
and complete specifications and drawings which, if
desired, will be returned 10 those whose offers may
not bs accepted 1t must also be stated at what es
tablishment the work is to be done. .-
Each proposal must be accompanied by guaran-
tee that the contract when awarded will be faith.
fully performed, and the successful bidders will be
required to enter into security for that purpose In
the of threefourths the amount of the contract.
]. G. DOBBIN,
jy yl-2awtlAug Secretary of the Savy.