It was under the political authority of the Secretary of State for Air .
The Air Ministry was a department of the Government of the United Kingdom with the responsibility of managing the affairs of the Royal Air Force , that existed from 1918 to 1964 .
Air Ministry was under the political authority of the Secretary of State for Air .
The Air Ministry was a department of the Government of the United Kingdom with the responsibility of managing the affairs of the Royal Air Force , that existed from 1918 to 1964 .