Choppertop and JoeM you are i believe wrong
just did a sample calculation with 200lb pilot 150lb copilot 10 galls in main tank and 5 galls in aux tank and got answer of +0.95 inches i.e. to the right.
so your instructor is right i think
1) so the initial lateral is 0 and the a/c forms no part of calc
2) 0 is halfway across a/c laterally
3) everything loaded to right is a +ve and to the left a -ve
4) the arms which are all between -11 to +11.2 are for a sample a/c check your weight and balance schedule to see if they are the same for your a/c
5)lateral is almost always going to be +ve
200* 10.7 = 2140
150* (9.3) = (1395)
60* (11.0) = (660)
30* 11.2 = 336
total moment/total weight = 421/440 = 0.9568
Last edited by Camp Freddie; 29th Jun 2008 at 20:52.