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_name_17 ( d__max_ INTEGER, taper VARCHAR, c__max_ VARCHAR )

### Question ###
What total D (max) has a taper of 1:20.047, and a C (max) bigger than 65.5?

### Accurate SQL ###

SELECT SUM(d__max_) FROM table_name_17 WHERE taper = "1:20.047" AND c__max_ > 65.5