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2010-03-18

Category Normal Category is a certification category. This category has a maximum G loading of +3.8 G's (positive G's) -1.52 G's (negative G's). Usually spins and other maneuvers that exceed the normal flight envelope are prohibited.

Utility Category is a certification category. This category has a maximum G loading of +4.4 G's and -1.76 G's. Aircraft in this category are approved for maneuvers that are not acceptable in the Normal category. Spins are required for certification in the Utility category.

Frequently aircraft are certified in the normal category at published gross weights. The same aircraft may also have a certification in the Utility category with different weight and CG limits.. The category it falls into is dependent on it's weight and CG location. The 150 is a utility category aircraft up to it's gross weight. The Acrobat models are single certified in the acrobatic category. The 172 is certified in both categories (at differnt gross weights).
Highflyer et al
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