On Tue, 08 Jun 2004 21:16:29 GMT, Orval Fairbairn
wrote:

In article ,
(Bob Martin) wrote:

Is a statement such as the following acceptable for weight and balance
calculations for flying?

"As long as the maximum baggage weight of XX lbs and gross weight of
xxxx lbs is not exceeded, the aircraft will be in balance"

NO! You need the CG of the airplane to be within a certain range of
distances of Mean Aerodynamic Chord. The above statement gives no
quantitave information as to where that CG is.

But if it's impossible for a given airplane to be outside its CG range as
long as placarded limits are obeyed, seems to me that verifying that the
limits are not exceeded would be sufficient for the pilot to be assured
that CG is within the allowed range. There have been thousands of planes
sold where the CG check is done on that basis.

Ron Wanttaja