SELECT 1 AS st_ship_delivery_date FROM table_11552751_2 WHERE ship_types_delivered = "S2 (LST) type, S2 (frigate) type, C1-M type"
Berapa tanggal pengiriman ketika tipe S2 (LST), tipe S2 (Frigate), tipe C1-M telah dikirim?
CREATE TABLE table_11552751_2 (ship_types_delivered VARCHAR)