Figure 6: Effects of Mass Distribution

Flight Training Instruction Out-of-Control Flight - index
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Out-of-Control Flight

Aerodynamic Principles

If roll inertia (Ix) is greater than pitch inertia (Iy), then the aircraft has a positive IYMP and is said to be wing-

loaded. If the pitch inertia is greater than the roll inertia, then IYMP is negative and the aircraft is said to be

fuselage-loaded. Most current tactical aircraft are fuselage-loaded, even with ordnance on the wing

stations.

Wing-Loaded

I z> I x> I y

Neutrally Loaded

I z> I x= I y

Fuselage-Loaded

I z> I y> I x

Figure 6: EFFECTS OF MASS DISTRIBUTION

(9-98) Original

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