When I did my AQM (ALM) course in the summer of 1959 at 242 OCU Dishforth, among the things we potential AQMs were taught was how to fill in an aircraft weight and balance trim sheet: Hastings (relatively simple), Britannia (relatively simple) because they only included fore and aft trimming, but the dreaded Beverley trim-sheet introduced a new complexity into the skills required to fill in the form as it introduced the need to include vertical loads into the equation as well as fore and aft weights. ISTR the whole AQM course suffered as it took ages to master the bloody thing! Sample below.
Beverley Trim Sheet 1959