1. I ever read somewhere in the net that Boeing aircrafts have less G limit when they're ujan dirty configuration than in clean. Can someone please confirm this?
2. What is the limit in clean vs in dirty configuration?
3. What is the reason for the different value?
1. Almost all aircraft have different values for load limits with flaps/slats extended than in clean configuration.
2. Depends on type. For B737 is 2.5/-1.0g in clean configuration and 2.0/0.0g when "dirty".
3. Flaps when extended can't sustain as much load as when retracted. It's basic physics really.