Woods Hole Selects Rapp CTD Winch

Posted by Irina Tabakina

Rapp Hydema provided Woods Hole Oceanographic Institution (WHOI) a CTD winch for its new research vessel R/V Alucia, which is being managed and financed by Beta Maritime.  Rapp’s TBW-520E-T90 winch accommodates 7,000m of .322 Rochester Fiber-Optic cable, plus 100 ft. of 2.25-in. synthetic tether.  It has Active Heave Compensation (AHC) set for optimal use at 3000m of deployed line.   Rapp’s unit is compliant with UNOLS’ Research Vessels Safety Standard Appendix B:  Overboard Handling Systems Design Standard, a rigorous requirement that is only now in the process of implementation fleet-wide.  The Rapp winch develops five tons of line pull in Speed Step 1, on the bare drum, while retrieving at 60m/min. 
Despite the presence of Active Heave Compensation, the Rapp winch has a power requirement of 70 kW with 3000m of line deployed.  Rapp’s electrically-driven, electronically-synchronized T90 level wind—popular in various other research vessel applications—is also used.  
www.rappmarine.com
 


(As published in the October 2014 edition of Marine Technology Reporter - http://www.marinetechnologynews.com/Magazine)

The February 2022 eMag edition of Marine Technology Reporter looks inside the world of oceanography.
Read the Magazine Sponsored by

How to Choose the Best Inertial Solution for your Application and Accuracy Needs

Marine Technology Magazine Cover Jul 2022 -

Marine Technology Reporter is the world's largest audited subsea industry publication serving the offshore energy, subsea defense and scientific communities.

Subscribe
Marine Technology ENews subscription

Marine Technology ENews is the subsea industry's largest circulation and most authoritative ENews Service, delivered to your Email three times per week

Subscribe for MTR E-news