Flaps-down G limits?
I could have posted this on the Questions forum, but I figured that there are enough knowledgeable people on this forum and that the answer would be of interest to PPLs.
Why is the flaps-down G limit for most (all?) aircraft restricted to +2.0 to 0.0 G? I am particularly interested in the reason for prohibiting negative G.
These limits apply to all the light aircraft that I have flown and I see that it also applies to transports - the 737 for example. I have done some Internet research, but haven’t found any conclusive information.
Another related question concerns the ASI white arc. Is the flap limiting speed (Vf?) applicable to all flap deflections? I have always assumed it is.