sentences:  The sea trials delayed the conversion of the next ship for four years.By 1969, the budget for naval programs had been cut and only four out of the seven ("Terra Nova", "Restigouche", "Gatineau" and "Kootenay") would get upgraded to IRE standards and the remaining three ("Chaudière", "Columbia", and "St. Croix") were placed in reserve.The ASROC launcher replaced the 3 in/50 cal twin mount and one Mk 10 Limbo mortars aft.