The Caproni Vizzola Calif was a family of sailplanes produced in Italy in the 1970s and 1980s. Of typical sailplane configuration with T-tails, they featured distinctive wings with centre sections of constant chord and trapezoidal outer panels. The forward fuselage was constructed of fibreglass over an alloy frame, while the rear fuselage, wings, and empennage were metal-covered.
The most significant member of the family, and the only one produced in quantity (around 150 by the early 1980s) was the A-21S, a two-seat version that accommodated the pilot and passenger side-by-side. At one time this aircraft concurrently held four world records for two-seat sailplanes, including:
- A-10 (1 built)
- A-12 (2 built)
- A-14 (1 built)
- A-15 (1 built)
- A-20S - two-seat version of A-20
- A-21 - two-seat development of A-14
- A-21S - refined production version of A-21
- A-21SJ - jet-powered version of A-21
- Crew: 1, pilot
- Capacity: 1 passenger
- Length: 7.84 m (21 ft 9 in)
- Wingspan: 20.38 m (66 ft 10 in)
- Height: 1.61 m (5 ft 3 in)
- Wing area: 16.2 m2 (174 ft2)
- Aspect ratio: 25.6
- Empty weight: 436 kg (961 lb)
- Gross weight: 644 kg (1,420 lb)
- Maximum speed: 255 km/h (158 mph)
- Maximum glide ratio: 43:1
- Rate of sink: 0.6 m/s (118 ft/min)
- Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions. p. 237.
- Hardy, Michael (1982). Gliders and Sailplanes of the World. Shepperton: Ian Allan. p. 21.
- Coates, Andrew (1978). Jane's World Sailplanes and Motor Gliders. London: MacDonald and Jane's. p. 107.