Modeling Cranes on Barges with GHS
A new addition to GHS software, the Crane Module, helps naval architects charged with calculating the complicated effects of a crane's performance on barges. Although the Crane Module is useful for modeling any crane, it is especially powerful in modeling large cranes with multiple hooks mounted on a barge or ship. "Crane manufacturers give a limit to the amount of machine list allowed as the boom lifts and/or rotates," explained Ed Glowacki, owner of Glowacki Engineering, an engineering consulting firm in Florida specializing in naval architecture, "and these cranes are designed to operate on virtually level ground." Glowacki's consulting firm is often called upon to create a modified crane chart for cranes installed on ships and barges – surfaces that are anything but level.
Horizon Delivers New Z-drive Tug For Dixie Towing
Horizon Shipbuilding of Bayou La Batre, Ala., delivered a Cummins-powered Z-drive tug to Dixie Towing of Jacksonville Florida on January 12, 2001. The 70 x 26-ft. boat is powered by a pair of Cummins KTA19 M3 engines rated for 500 hp each at 1,800 rpm. The engines turn Ustein-Aquamaster 370H Z-drives with 52-in.(1321 m/m) propeller diameters. Dixie Towing owner Robert Gibbs explains that the new boat, named M/V Belle Watling, was nearly two years in planning. Working with Jacksonville based naval architect Ed Glowacki, Gibbs settled on an azimuthing stern Z-drive design for its versatility. The original plans for a 24-ft. beam on the hard chine hull was broadened to 26 ft. in order to achieve the nine-foot draft limit of much of the Intercoastal Waterway.
Horizon Delivers New Z-Drive Tug to Dixie Towing
Horizon Shipbuilding of Bayou La Batre, Ala., delivered a Cummins-powered Z-drive tug to Dixie Towing of Jacksonville, Fla., on Jan. 12, 2001, 30 days ahead of the contractual delivery date. Belle Watling is the first azimuthing tug to be built by Horizon. The 70- x 26-ft. boat is powered by a pair of Cummins KTA19 M3 engines rated for 500 hp each at 1,800 rpm. The engines turn Ulstein-Aquamaster 370H Z-drives with 52-in. propeller diameters. Dixie Towing owner Robert Gibbs explains that the new boat, named M/V Belle Watling, was nearly two years in planning. Glowacki Engineering of Jacksonville, Florida provided the contract design for Dixie Towing. Detail design was completed by Horizon's in-house design staff.
