How many LOA (metres) reported for Black Jack?
CREATE TABLE table_20854943_2 (loa__metres_ VARCHAR, yacht VARCHAR)
SELECT COUNT(loa__metres_) FROM table_20854943_2 WHERE yacht = "Black Jack"
### Context: CREATE TABLE table_20854943_2 (loa__metres_ VARCHAR, yacht VARCHAR) ### Question: How many LOA (metres) reported for Black Jack? ### Answer: SELECT COUNT(loa__metres_) FROM table_20854943_2 WHERE yacht = "Black Jack"