The Let L-33 Solo is a Czech shoulder-wing, single-seat, glider, designed by Marian Meciar and Vaclav Zajic, and produced by Let Kunovice.

[1][2][3] The L-33 was a developed as the single-seat "natural step" for early solo students to fly after dual training on the two-seat LET L-23 Super Blaník.

The L-33 features a cantilever wing, a T-tail, a single-seat enclosed cockpit under a bubble canopy and fixed monowheel gear.

The wing has an area of 11 m2 (120 sq ft) and mounts top surface Schempp-Hirth-style air brakes.

[1][2][4] The L-33 was a competitor in the IGC World Class sailplane design competition, but lost to the Polish Politechnika Warszawska PW-5.