A 5lb Piece of equipment is installed on a aircraft on a Aircraft 45 inches aft of the C of G. A new Seat is also fitted 60 inches fwd of the C of G, Weighing 3.5 lbs more than the old seat. What is the resultant moment? I Know its 60-45=15 Im not sure do i have to use the weight for anything? or they asking for more than i need? the resulant moment is -15 i think. Still behind the datum.