33 ENCLOSURE. WAR OFFICE QUESTIONS FOR CONSIDERATION BY THE SUB-COMMITTEE ON AIR WARFARE. 1. Methods of attack employed against land objectives and their effectiveness bearing in mind the types and qualities of material used and the standard of training. 2. Methods used for the detection of aircraft their effectiveness and general limitations. 3. Organisation and employment of A.A. artillery including light A.A. guns and an analysis of results achieved. 4. Control of A.A. fire. Types of fire control instruments, searchlights and sound locators methods of use and effectiveness.