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_1290 ( "Airline" text, "ICAO" text, "IATA" text, "Callsign" text, "Commenced operations" real, "Fleet size" real, "Headquarters" text )

### Question ###
What is the fleet size of the airline which has a callsign of cool red?

### Accurate SQL ###

SELECT MIN("Fleet size") FROM table_1290 WHERE "Callsign" = 'COOL RED'