[2] The aircraft fuselage center section is of welded steel tube, covered with sheet metal and fiberglass panels.

[2] Development continued, with the Zlín Z 142, featuring a slightly enlarged two-seat airframe based on that of the Z 42 and the more powerful (157 kW (210 hp)) Walter (now LOM) M 337 fuel-injected inverted six-cylinder, supercharged air-cooled engine of the Z 43 replacing the unsupercharged LOM M137 engine of the Z 42.

This variant is designated the Z 242L Guru, and is immediately distinguishable by its relatively wide cowling which houses the flat-four engine.

[7][8] A Zlin 242 was used by Chicago radio personality Bob Collins (broadcaster) until it crashed after colliding with another airplane.

Data from Jane's all the world's aircraft 1975–76 [25]General characteristics Performance Avionics VHF radio and IFR instrumentation optional