Carriage of artillery equipment by air : QF 25 PR. Mark 2 gun on carriage 25 PR, Mark I in Dakota aircraft Carriage of artillery equipment by air : QF 6-PR 7-CWT, MK 4 gun on carriage 6-PR, MKS 1, 1A or 2 in Dakota Aircraft Artillery training : Gun and fuze calibration (heavy A.A.) / War Office. Vol IV / War Office. Part I: A.A. Gunnery / War Office Artillery training : The 64-gun regiment / War Office. Vol I. Pamphlet no. 9: Employment and tactical handling of the anti-tank regiment Artillery training : Predictor A.A. No. 3 and the power controlled 40-mm. L.A.A. gun / War Office. Vol IV / War Office. Part I: A.A. … description of the sub-target gun machine