Design Ultimate Load Factor

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Limit Load Factors

FAR 23 and FAR 25:

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Military:

U.S. Air Force

U.S. Navy

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Fighter

8.67

Attack

Fighter, Attack, Trainer

7.33

Observation

6.00

Trainer

5.67

Utility

Utility

4.00

Small Bomber

3.67

Medium Bomber, Assault Transport

Patrol, Weather, Anti-Submarine, Reconnaissance

3.00

Medium Transport

2.50

Heavy Bomber, Heavy Transport

2.00