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_221315_3 ( fai_space_flights INTEGER, max_mach VARCHAR )

### Question ###
What is the highest number of fai space flights when max mach is 5.65?

### Accurate SQL ###

SELECT MAX(fai_space_flights) FROM table_221315_3 WHERE max_mach = "5.65"