Center of Gravity Range

Definition

-Center of gravity range: Limits within which an aircraft must balance forward/aft

Figure 1

-CG range for Piper Seneca

-S/N 34-E434-7250001 to 34-7250214

  • 4,000 lb +86,4” to +94.6”

  • 3,400 lb at +82.0” to +94.6”

  • 2,780 lb at +80.7” to +94.6”

Graph Envelope of Piper Seneca

Figure 2

Empty Weight CG

-Some aircraft CG range in empty weight condition

  • More common with helicopters

  • Small airplanes

  • Within limits if standard loading used

  • Listed in TCDS if applicable

Operating Weight CG

  • Operational CG limits-aircraft loaded, ready for flight

  • Some aircraft have more than one category

  • Limits change as weight changes

  • CG must be in limits to legally fly

Figure 3