Wednesday, June 7, 2023
Maritime Propulsion

Posted by November 19, 2015

Seacor's New Class of Fast Support Vessel Delivered

Image: Seacor/Incat Crowther

The delivery of Alya McCall is significant in that it is the first vessel in a fleet of new class monohull Fast Support Vessels (FSV) for SEACOR Marine. Alya McCall is the first vessel in the SEACOR Express Plus class and features striking lines not ordinarily found in traditional monohull FSV designs. 
Gulf Craft in Franklin, La. built the 206 x 43 x 9.25 ft. vessel. Alya McCall features seating capacity for 100 personnel and has a top speed of 38 knots.
The performance is enabled by five Cummins QSK 60, EPA Tier 3 compliant diesel engines, each producing 2680 bhp. The engines are coupled to Twin Disc MGX 61500 SC reverse reduction gearboxes that drive Hamilton HT-810 water jets. 
A cardan shafting system by Driveline Service of Portland connects the gearboxes to the waterjets.
Superior station-keeping capability is provided through the combination of three (3) Thrustmaster 30TT200 electric-mechanical tunnel thrusters in working in conjunction with the azimuth-like waterjets, all of which are controlled by a Kongsberg DP-2 dynamic positioning system.
Electrical power is derived from three (3) Cummins QSM11 gensets, each producing 290 ekW. Dual FFS firefighting pumps and remoted controlled monitors provide Fifi-1 equivalent firefighting capacity for combatting off-ship fires. A Naiad Dynamics ride control system is also fitted to improve passenger and crew comfort while underway.
The vessel is certified by the USCG under the provisions of 46 CFR Subchapter T and by the American Bureau of Shipping as a High-Speed Craft with DP-2 and Fire-Fighting Capability notations.
Alya McCall Main Particulars
Length o.a. 206 ft./62.8m
Length w.l. 194 ft./58.9m
Beam 32ft./9.8m
Draft 9.25 ft./2.8m
Depth 15ft./4.6m
Construction Marine Grade Aluminum
Fuel Oil 83,500 gal.
Fresh Water 7,500 gal.
Grey Water 600 gal.
Black Water 600 gal.
Lube Oil 700 gal.
Waste Oil 500 gal.
Bilge Oil 500 gal.
Passengers 100
Crew 16
Deck Size 136.5 x 26.5 ft.
Deck Area 3530 sq. ft./328 sq. m.
Deck Cargo 300 LT
Speed (Max) 38 knots
Main Engines 5 x Cummins QSK 60
Power 5 x 2 680 hp / 5 x 1998 kW @ 1900rpm
Gearboxes 5 x Twin Disc MGX 61500 SC
Propulsion 5 x Hamilton HT-810 Waterjets
Generators 3 x Cummins QSM 11, 290 ekW
Bow Thrusters 3 x Thrustmaster 30TT200ML
Flag USA
Class/Survey USCG Subchapter T, Oceans
ABS +A1 HSC Crewboat +AMS +DP2 Fire Fighting Capable


CumminsEnvironmental Protection AgencyUnited States