Complete the following problem from the text by Megson.  Note that since the answers are given, it is essential that you show and justify all work to receive full credit.  Required, as part of your solution, show a free body diagram of half of the airplane cut through the C.G. appropriate for steady-level flight (where M=600,000 N-m is given) and a separate FBD of the complete  aircraft for the maneuvering conditions (now M is unknown).  

(Note:  You must prove which point on the V-n diagram is critical.  Also, show all necessary free body diagrams clearly.  Also note that aerodynamic moments are considered in this problem.)  Be careful with the scans below, as many decimal points have vanished.