SELECT main_artillery FROM table_23614702_2 WHERE tons___lton__ = "1,051"
CREATE TABLE table_23614702_2 (main_artillery VARCHAR, tons___lton__ VARCHAR)
ปืนใหญ่หลักสำหรับเรือรบ 1,051 ลำคืออะไร?
What is the primary artillery for the  1,051 ships?