<prompt> Bhala okuqhubekayo kwalesi sigaba - Ngo - 1896, lezi zimboni zazinenjini evuthayo njengamandla asizayo. Lokhu kwase kuthathelwe indawo yinjini yegesi ngo-1925. Ngo-May 1935, umbhoshongo womshini wokugunda utshiswa umlilo. Umbhoshongo walungiswa, kwafakwa imishini emibili yokungenisa umoya endaweni yophahla lwangaphambili olunjengekhekheba. Ngo-1937, injini kawoyela yayiwumthombo wamandla asizayo. NgoFebhuwari 1, 1953  <response>: , izigayo zagcwala amanzi. Lezi zigayo zazisasetshenziswa ngalesosikhathi kodwa zase ziyeke ukusebenza ngo-1969. Ngo-1999 lezi zimboni zathengwa ukuze ziguqulwe. Kwakhiwa i-ogee cap entsha futhi yafakwa embhoshongweni womoya. 