errors in AFM published loadsheet
Speaking of trimsheet design...
The Cessna 172 "S" AFM, as published in 2000 (or maybe 1999) has completely different values for imperial & metric weights on the same chart.
Read down the left hand side with lbs and you get one scale. Read the right hand side of the same graph and you get a completely different scale. One assumes the lbs side is correct, as most American manufacters are still stuck firmly in the 1800's when it comes to measurement units.
Makes me wonder how many other aircraft have similar errors.