Page 49: of Marine Technology Magazine (January 2013)

JonRie Marine Winches introduces its new Series ?220? Double Drum Escort/Assist Winch currently be installed on the twin ship sets for Caribbean Tug-Z and the new Twin ASDs for Seabulk Towing. JonRie delivered its  rst three ship sets last year to Caribbean Tug-Z and Seabulk Towing. The fourth ship set to be delivered this spring to Seabulk Towing with a  fth ship set being a larger version to be installed on the new Marine Towing of Tampa ASD this summer. All  ve ship sets feature JonRie?s Constant Tension (Active Heave Compensation)/Constant Scope systems. All  ve tugs feature independent drives for each drum and JonRie?s standard foot pedal for hands free operation. Also featured on each drum are JonRie?s Tension read out sys- tem. The bow winches also share their Hydraulic Power Unit (HPU) with aft Capstans and Towing Winches. The winches were originally designed for Submarine Docking but now are being used to handle barges and as a redundant line on all ship Assists and Escort Work the tugs will be involved in. This type of redundant line tethered to the ship is standard on the Panama Canal. All ADSs should be in service by the start of 2014. www.marinewinch.com Rapp Hydema completed a second winch drive retro t for Otto Candies in Houma, LA, in January 2013. An existing Rapp hydraulic winch was converted to electric, with the addi- tion of an Active Heave Compensation (AHC) package as well. ?Active Heave Compensa- tion is important for our vessel operations in Brazilian waters, and the Rapp electric retro t package has shown well with other customers,? said Brant Folse, Project Manager and Marine Engineer at Otto Candies. Rapp has converted other hydraulic winches in recent years. Rapp?s package includes an award-winning motor, rec- ognized as a new, innovative technology at the 2010 Offshore Technology Conference (OTC) Spotlight on Technology ceremony, and also a liquid-cooled arrangement internally. Other components include VFDs (variable-frequency drives), energy magazines, a motor-controlling encoder, wireless remote control, and main, tension, and speed control. According to the manufacturer, Rapp liquid-cooled motor pro- vides more kW per kilogram of weight than comparable air-cooled designs. The motors are mounted on Rapp?s own in-house manufac- tured gearbox, which were developed long ago for its hydraulic winch lines. www.rappmarine.com JonRie Marine Winches JonRie Marine Winches Otto Candies Winch Re t Otto Candies Winch Re twww.seadiscovery.com Marine Technology Reporter 49MTR #1 (34-49).indd 49MTR #1 (34-49).indd 491/30/2013 12:14:36 PM1/30/2013 12:14:36 PM