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_1898 ( "Position" real, "Sail Number" text, "Yacht" text, "State/Country" text, "Yacht Type" text, "LOA (Metres)" text, "Skipper" text, "Elapsed Time d:hh:mm:ss" text )

### Question ###
When 6606 is the sail number what is the type of yacht?

### Accurate SQL ###

SELECT "Yacht Type" FROM table_1898 WHERE "Sail Number" = '6606'