Gadzira shanduro yakaoma zvikuru yemutsara uyu Inopfuura 57% yengarava dzenhau dzakanyorwa muNational Register of Historic Vessels ingava iri yomunhu oga kana kuti inoshandiswa nenzira yebhizimisi.
Chokwadika, shanduro yakaoma zvikuru yemutsara uyu ndeiyi "Zvinopfuura 57% zvezvikepe zvenhau zvakanyorwa paNRHV ndezvevanhu voga kana kuti zvinoshandiswa zvebhizimisi, nemamiziyamu nemasangano anobatsira anovimba ne14% yenhamba yose".