The possibility to park commercial airplanes at Beja Airport as an alternative to extended parking at the congested Portela Airport in Lisbon has been discussed by the ANA with the Portuguese Air Force.
Since July 2009, Lisbon airport charges extra for parking at Portela for more than 18 hours. The airport is completely surrounded by urban development, being one of the few airports in Europe located inside a major city - making parking space an expensive affair.
Read about it in Jornal de Negócios Online in the article "Base da Força Aérea é alternativa à falta de estacionamento na Portela"
Also mentioned at Rádio Voz da Planície in the article "Base Aérea 11 (Beja): Vai ser alternativa ao aeroporto de Lisboa"