I've made my mind about why we need to do this in the way we do this and came to no clue. To define it to be "levelled" is ok and already detected (runtime calibration). But if I think back to lets say Cyclops "StormOSD" or other systems...
2438309Control device for airplanes1948-03-23Zimmerman 2416958Tailless airplane1947-03-04Sears 2362224Aircraft1944-11-07Roseland 2347230Airplane with nonstalling and glide angle control characteristics1944-04-25Zuck 2118987Variable incidence wing for airplanes1938-05-31Smith ...