CVT4 Strale (oz16716)

About this Plan

CVT4 Strale. Radio control scale model sailplane. Wingspan 4020 mm. Scale is 1/4.

Direct submission to Outerzone.

Update 27/4/2026: Added article, thanks to Pit.

Quote (google-translated): "Fabio Pontanari presents the 1:4 scale reproduction of a beautiful Italian glider.

The desire to reproduce this glider dates back to August 1961, when the historic magazine 'Ali Nuove' published an article by engineer Piero Morelli describing the technical and aerodynamic characteristics of his latest creation. It's worth noting that Morelli also designed the delightful Zigolo, a 12-meter glider, the Veltro, and the excellent M 100 S (see MODELLISMO no. 42), a top glider of the 1960s. The article was accompanied by a triptych, unfortunately missing the fuselage sections, and several photos, one of which was in color. After forty years of various model aircraft, especially gliders, and having put the last F1As in the shed, I devoted myself to radio control, continuing to design and build gliders.

After a dozen builds, I felt like trying something more challenging, and the choice was very easy because this glider had remained etched in my memory, both for its original T-rudder and for two other key features: it was Italian and had not the usual white color, but orange-red (RAL code 2004).

The model and its structure: Since the original glider had a 16.08 m wingspan, it was easy to adopt a 1:4 scale with a few small modifications: the wingtip chord was increased from 125 to 140 mm, the tailplane surface increased by about 10%, and the use of double-blade spoilers instead of rotating plates. Another necessary work would be a faithful reproduction of the cockpit, but I haven't yet been able to find even the minimum documentation (help needed!).

Fuselage: The fuselage structure is made of 3 mm birch plywood half-frames joined by 10 x 10 mm and 5 x 10 mm balsa strips, with two additional ramin strips reinforcing the landing gear and nose area (photo 1). The two structures are covered with 2 mm balsa and 5 x 10 mm balsa strips..."

Supplementary file notes

Article.

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