Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_48 (airport VARCHAR, rank VARCHAR)
### Question:
What was the total number of aircrafts in 2011 for sydney airport that was ranked number 1?
### Answer:
SELECT COUNT(2011) FROM table_name_48 WHERE airport = "sydney airport" AND rank < 1