Between 1927 and 1944, and again in the 1950s, hydrofoil vessels were designed and built at what is now the nationalised Rosslau shipyard.
Phakathi ko1927 kwakunye no1944, kwakhona nangeminyaka yee1950, iinqanawa ezinamaphiko ayinyusayo xa ihambayo ukuze ihambe kakuhle zayilwa kwaye zenziwa kwinto ngoku ekuthiwa yiKosslau kazwelonke yendawo ekwakhiwa kuyo iinqanawa.