The CVT4 Strale (English: Arrow) was a one-off, experimental, high performance glider designed and built in Italy.
The Veltro went from design commencement to completion in eight months; the Strale, started in 1955, was not finished until July 1961, even though the two aircraft had much in common.
[1] The main differences between the Veltro and the Strale were in the wing, even though these had a similar straight tapered plan and used the same laminar flow NACA airfoil sections.
[3] The double slotted rudder was increased in area by about 11%, lowering its aspect ratio still further and making the overall fuselage length 130 mm (5.1 in) greater.
[2] The Strale made its first flight in July 1961 and after some testing took part in the Italian National Gliding Competition in Perugia early that August.