Question: 601 Lobos is a squadron of the Portuguese Air Force that operates an aircraft that is easily distinguished by its distinctive tail stinger or "MAD Boom", used for what?
Sentence (from "Sintra Air Base"): Sintra Air Base (Portuguese: "Base Aérea de Sintra" ) (ICAO: LPST) , officially designated as Air Base No. 1 (Portuguese: "Base Aérea Nº 1" , BA1), is a Portuguese Air Force base located in the Sintra Municipality, Portugal.
Relevant evidence: No