Another pic of this acrobatic figure. DVX

Mad fly 2

Mad fly (volo folle) is an acrobatic figure you can see here. 
In the comments in the following pictures 
http://www.ww2incolor.com/italian-forces/Savoia-Marchetti_SM.html
some of you thougnt to a bad flying discipline; in reality they were raising this acrobatic figure. Considering they were flying over Madrid in a war mission, actually they were demonstrating selfconfidence and air superiority.
DVX

Mad fly

Probably a review, being the crew all standing. DVX