MITseaAH - Excitement in Motorsailing
Pedrick Yacht Designs is pleased to have provided performance design and
engineering services for the breakthrough motorsailer MITseaAH - a luxury
sailing yacht that exceeds 22 knots under power. Through a clever
combination of design features, this 48 meter (156 ft) motorsailer offers
both exhilarating performance and oceanic cruising range.
MITseaAH's project management, general arrangement, interior and exterior
design, styling and detailing were produced by Liebowitz & Pritchard
Architects. Pendennis Shipyard constructed the yacht and provided detailed
systems design and on-site project management. Pedrick Yacht Designs
developed the vessel's naval architecture and innovative performance and
MITseaAH's hull form was patterned after light-displacement sailing
dinghies, including the use of retractable appendages. Her deep, bulbed
keel draws 7 m (23 ft) under sail, yet reduces to just over 2 m (7 ft) when
raised, centerboard-style, for motoring and harbor access. The rudders
retract vertically from 3 m (12 ft) to the 2 m harbor draft.
The sail plan is fractional, like a Twelve-Meter Class yacht, driven by the
need to pass under the Brooklyn Bridge. The fixed mainmast, to which the
headstay and shrouds are permanently attached, meets the bridge's air draft
of 39 m (127 ft), above which a retractable topmast extends an additional 9
m (30 ft) to fly a large, boom-furling mainsail. MITseaAH's deep keel and
moderately light displacement give pleasing performance under sail.
Her exceptional speed under power comes from efficient hydrodynamic design
and muscular propulsion. Large, controllable-pitch propellers are powered
by twin diesels, each delivering 3,500 hp. To maintain shallow harbor
draft, the propellers fit into deep, gracefully sculpted recesses in the
hull's afterbody. Adding to the "firsts" for this high-performance
motorsailer are full-length spray stakes and large trim tabs aft, split at
centerline to double as active, roll-control stabilizers.
By using Alustar aluminum in the yacht's hull and deck structure, Pedrick
Yacht Designs and Pendennis Shipyard saved weight while meeting
classification society strength criteria. As a UK "red-flagged" vessel
intended to meet charter service requirements, MITseaAH has been built and
equipped according to the safety criteria of the MCA (Maritime and
Coastguard Agency) Code of Practice.
With MITseaAH, Pedrick Yacht Designs has transcended conventional thinking
and broadened the scope of what a multi-purpose yacht can be.