Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_24496403_1 ( launched VARCHAR, disposition VARCHAR )

### Question ###
When was the stokers' training ship launched?

### Accurate SQL ###

SELECT launched FROM table_24496403_1 WHERE disposition = "Stokers' training ship"