Meet the Alvin 6500 Team: Francis Elder By Hannah Piecuch | December 17, 2020 Francis Elder tests the new hydraulically powered intensifier pump for Alvin’s variable ballast system. The new pump was designed and built in-house and will be able to withstand the pressure at Alvin’s new depth of 6,500 meters. (Daniel Hentz © Woods Hole Oceanographic Institution) Lead Mechanical Engineer Francis Elder helps re-draw Alvin’s future. Read the full interview here. Posted in Alvin 6500, HOV Alvin