ech fileTHarken’s TR31 Tight Radius rail and trolley systemeing safe on board any workboat has never been easier. vessels. At the same time, Harken Industrial’s TR31 Tight That’s because when the Sabine Pilots in Port Arthur, Radius rail and trolley system prevents the binding that BTexas took delivery of their all new all-aluminum pi- bothers deck crew most about safety tethers. Inside the com-lot boat, the Port Arthur, in May of last year, the vessel pact aluminum trolley‚ four anti-friction rollers engage both came with all the bells and whistles that operators have sides of the rail‚ smoothly and securely following elevation come to expect from tonnage produced by Gladding- changes and rail radius contours as tight as 200 mm. Crew Hearn Shipbuilding in Somerset, MA. For its part, the never have to unhook‚ but always remain safely tethered.Gladding-Hearn name has over time become synonymous The Harken TR31 continuous rail and trolley system al-with cutting edge pilot boats, and the Port Arthur was no lows a crew member, fully-harnessed and securely tethered different. In this case, though – and with the blessing of to the trolley, to move freely along the rail with fall restraint Gladding-Hearn President Peter Duclos – it also came security during inspection and maintenance, or when as-with a Harken TR31 Tight Radius rail and trolley system. sisting in pilot transfer. Both rail and trolley are fabricated The deep-V hull vessel designed by C. Raymond Hunt of high-strength, marine-grade 6061-T6 aluminum, a ma-Associates is a Chesapeake class pilot boat, measuring 53.6 terial proven to withstand the harshest environments on feet overall, with a 17.8-foot beam and a 4.8-foot draft. It the planet. An optional brake trolley with manual screwpin is also the