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_99 ( payload__kg_ VARCHAR, in_service VARCHAR )

### Question ###
Tell me the payload that has an In service for 2011

### Accurate SQL ###

SELECT payload__kg_ FROM table_name_99 WHERE in_service = "2011"