I guess you have missed the previous 3 pages of posts but the theory is simple.
f = m . a
Force is weight
Mass is the amount of matter there
a is the acceleration
Well, thanks for setting me straight on that, I can tell you it's a real Eureka moment for me!!
The point is, you had originally observed:
Have just found out that apparently an 800kg aircraft parked on the ground weighs 800kg and has a mass of 800kg.
Mr Newton, indeed anybody with GCSE Physics, would strongly disagree.
Yet there is nothing whatsoever incorrect with the statement other than the letter 'f' omitted from the kg weight, and as has been said already, omitting that letter has been the norm throughout the 40 years of my engineering career.
But hey, don't let a little reading around the subject cause you to apologise for being mistaken!
