65
AUGUST 2026
G
ladding-Hearn Shipbuilding 
has delivered Outward Bound 
back to Boston Harbor fol-
lowing a major refit at the Massachu-
setts shipyard. 
The shipyard built the JW Gilbert 
Associates-designed vessel in 1995 to 
transport visitors and supplies season-
ally to the Cathleen Stone Island Out-
ward Bound School in Boston Harbor. 
As work commenced, more hull and 
deck plating wasting was uncovered 
than expected and the project grew to 
include not only a re-engine, but work 
on shafting, propeller, mechanical sys-
tems, and a new paint job. According 
to Gladding-Hearn Shipbuilding Pres-
ident Peter Duclos, the refit of the 64ʹ 
steel ferry was still less expensive than 
replacing the vessel, which remains 
well suited to the operator’s needs. 
The newly installed Mitsubishi S6B3 
Tier 3 engine operates at 1,940 rpm. 
The new engine is connected to a 
Twin Disc MG-5114, 3:1 gearbox and 
delivers a top speed of 11 knots. The 
refit also included a new shaft and 
propeller, modifications to the engine 
bed, and replacement of the exhaust, 
cooling, and ventilation systems to 
accommodate the larger engine.
Gladding-Hearn’s team fully sand-
blasted and surveyed the hull before 
completing extensive replating. Doors, 
windows, and hatches were inspected, 
tested, and repaired as needed, while 
the interior and exterior received a 
new coating system.
MEMBER NEWS
Vessel Arrives Back in Boston Harbor 
Following Major Refit by Gladding-Hearn
PHOTO: GLADDING-HEARN SHIPYARDS 
The vessel, shown mid-refit, has been completed and delivered to Boston Harbor. 

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