HN39 said the material in the link had errors in it.
He didn't say what they were. and i couldn't see any errors but then i know nothing.
so i was hoping he would point out where the material was in error.
i have worked through with your numbers and thanks for them, and i am wiser for it thanks to you.
oh and forgot to state that FORCE = MOMENTUM / TIME
GB
Edit, having gone thru again, i still can't get why the 2 aircraft at different weights can't have the same L/D ratio. the graph shows they do at 226 kts, and my sums show they do as well with the data you gave.
I can get them to have the same L/d ratio at a certain V every time, so i would be grateful if you would explain again why its not possible and where the graphs are wrong.
GB
Last edited by Bye; 24th Nov 2012 at 16:40.