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|  MIL-P-29191B(YD1)
Propulsion:
Two 175 horsepower (hp), outboard engines
(minimum).
Weight:
To be kept to a minimum consistent with the
type hull material and other design parameters
specified herein; weight of basic craft
(excluding engines, fuel tanks, batteries, and
ancillary equipment) not to exceed 5,000 lb.
In addition to NMMA certification, the platform workboat shall conform to the
ABYC standards (except toe rails conforming to A.18.4 shall not be required) and
USCG standards for craft. of this type,
3.4.2 Hulls.
The hulls shall be flat-bottomed with a low draft-to-
Hulls shall have
displacement ratio to permit operation in shallow water.
additional reinforcement at the transom to allow for mounting to the outboard
engines , in the areas where the platform deck is to be attached, and in the bow
For
to provide impact protection against floating and submerged objects.
laminated fiberglass hulls, the following shall apply as a minimum lamination
schedule
Gel coat.
3/4 ounce per square foot mat
24 ounces per square yard woven roving.
1-1/2 ounces per square foot mat.
24 ounces per square yard woven roving.
1-1/2 ounces per square foot mat.
In addition, hull areas requiring additional reinforcement shall include as a
minimum:
24 ounces per square yard woven roving.
g.
h.
1-1/2 ounces per square foot mat.
The hull areas requiring reinforcement are at the discretion of the contractor.
Recommended areas of reinforcement should include the outboard shear of both
hulls from keel to 2 inches above the loaded waterline, and full depth from the
bow to 1 foot aft of the first bulkhead (inboard and outboard).
The hulls shall have self-draining storage
3.4.2.1 Storage-compartments.
There shall be not
compartments for below-deck storage of ancillary equipment.
This below-deck
less than a total of 50 cubic feet of below-deck storage space.
storage space does not include the space required for the outboard engines, but
Storage
does allow for the storage of the batteries and fuel tanks.
compartments should be located as far outboard as possible, and should be
Access to each storage
accessible during boom deployment and operations.
compartment shall be via a hatch cover of at least 18 by 24 inches, on the
platform deck
Hatches protecting these spaces shall be weathertight, flush
with the deck surface, and provided with recessed hasps and locks and drainage
Fuel tanks and batteries
channels to maintain an unobstructed deck surface.
Compartments containing fuel or
shall be located in separate compartments.
batteries shall be vented so as to direct gases away from sources of ignition.
The hulls shall
3 4.2.2 Transverse bulkheads and storage compartment decks.
have transverse bulkheads at the fore and aft ends of each storage compartment
5
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