The Bonomi BS.5 Ballerina (English: Wagtail) was a single seat, medium performance training glider designed and built in Italy in the 1930s.
On each side a pair of V-shaped, faired, steel struts braced the outer ends of the centre section to the base of the fuselage.
[1] The fuselage had an hexagonal cross-section with deep, almost upright sides, its upper surfaces curving down over the nose.
[1] At least two Ballerinas were built, slightly different in dimensions and dihedral[1] and the reconstructed pre-war Italian civil register suggests there may have been a third.
[2] Two spent some time in Egypt, brought in by Italians but operated by the Egyptian Aero Club.