Air Combat 1930-1960 These rules are designed to represent aerial combats in the period 1930 to 1960 in the form of a wargame on a table top. They may be used in conjunction with Cambrai to Sinai Rules for combined action involving ground forces. The rules are basically simple but require a thorough understanding to produce a satisfactory representation of 3 dimensional aerial combats, it is thus advisable that players familiarise themselves thoroughly with the movement and firing systems before attempting to play a full game. Scales: Horizontal scale 1:2000 i.e. 1mm = 2m (15mm = 30m) Time is divided in 2 second moves (1/15th with Cambrai to Sinai) Vertical movement is shown on the Altitude Move Speed Chart in terms of 100 ft (30m) intervals (scale unspecified) Movement patterns are used and provided in the game. A protractor and measuring tapes are required. Data for 140 aircraft types is provided. -Extract from the rulebook introduction description