Pull hard adds G at this airspeed and shows what gives out first: the wing or the structure.
Load factor
Stall speed at this G
Maneuvering speed
| Category | Limit load factor |
|---|---|
| Normal (172 at max weight) | +3.8 / −1.52 |
| Utility | +4.4 / −1.76 |
| Acrobatic | +6.0 / −3.0 |
Cessna 172N, normal category, speeds in KIAS: Vno 128, Vne 160, Va 97 / 89 / 80 at 2300 / 1950 / 1600 lb. The stall line is approximate and drawn to meet the limit load at the POH's Va.