Page 48: of Maritime Reporter Magazine (October 2017)

Vessel Design ates 10 tugs of Robert Allan Ltd. design m) in overall length, this unique multi- that work in ports along the U.S Gulf purpose vessel performs a full range of

Coast. The most recent of these was the services for the Shell Stone offshore ? eld.

RApport 2400 Class vessel Gladys B On the West Coast, Diversi? ed Marine built by Signet (at the Signet shipyard Industries of Portland have been build- in Pascagoula) for E.N. Bisso & Son. ing Robert Allan Ltd. designs since the

Inc. Other recent deliveries include the turn of the century. Two new “enhanced”

RAmparts 3200 Class design vessels RAmparts 2400 class vessels, the Mi-

Signet Arcturus and Signet Polaris built chelle Sloan and Lela Franco were com- for Signet by Patti Marine Enterprises in pleted by them for Harley Marine Ser- 2014, and the Signet Magic (also built at vices in 2015 making 10 in total. This the Signet shipyard in Pascagoula) year two more vessels of the same class,

The U.S. Navy has six Z-Tech tugs op- the Dr. Hank Kaplan and Rich Padden erating with the Paci? c Fleet from bases will also join the Harley ? eet.

in Japan and Washington State. These Earlier this year, the ? rst U.S. built vessels were built by J. Martinac at Ta- Rotor Tug, ART Trident, was delivered coma, Washington from 2007-2012. A to Seabulk Towing of Fort Lauderdale, tender for six more tugs for this client is Fla., by Master Boat Builders of Bayou underway as this article goes to print but La Batre, Ala. This new and unique Rob- no ? nal selection of the design or builder ert Allan Ltd. design, which was initially has been announced. conceived and developed by Rotortug

Harvey Gulf now operates the larg- B.V. of the Netherlands, will truly raise est version of the RAmpage family, our the bar for ship-handling operations in “Swiss Army Knife” AHTS design. This U.S. waters. Three of these vessels will unique vessel, the Harvey Stone, was built be delivered to Seabulk from the Master by Eastern Shipbuilding and delivered in Boat Builder facility, with the third vessel 2016. With a bollard pull of 117 short tons in this series (the Trinity) scheduled to be from a Tier 4 diesel electric hybrid plant delivered at the end of this year.

in a compact yet ef? cient hull, 212 ft. (65 While we are probably best known to 48 Maritime Reporter & Engineering News • OCTOBER 2017

MR #10 (42-49).indd 48 MR #10 (42-49).indd 48 10/4/2017 10:40:04 AM10/4/2017 10:40:04 AM