Then , on 22 July 1941 , the ATA was placed under the control of Lord Beaverbrook 's Ministry of Aircraft Production ( MAP ) .
On 16 May 1940 RAF Maintenance Command took control through its No. 41 Group .
On 22 July 1941 , the ATA was placed under the control of Lord Beaverbrook 's Ministry of Aircraft Production ( MAP ) .
On 16 May 1940 RAF Maintenance Command took control through its No. 41 Group .