The Zlín Z 43 is a Czech four-seat light aircraft. A development of the two-seat Zlín Z 42, it is a low-wing monoplane. A developed version, the Zlín Z 143 remains in production. Design and development After successful production of the Z-26 aircraft family, the Czechoslovak aircraft manufacturer Moravan, began design of a new series of training aircraft, known as the Z-40 family. Unlike the previous tandem-seat aircraft, the Z-40 family featured a side-by-side cockpit. It was available in two basic variants, a two-seat trainer, the Zlín Z-42, and a four-seat aircraft, the Zlin Z-43 capable of being used both as a trainer and a tourer. The resulting design is a single-engined low-wing monoplane of all-metal construction and a fixed nosewheel undercarriage. The Z 43 shares 80% of its structure with the Z 42, but is fitted with a revised fuselage accommodating a four-seater cabin and a more powerful engine. The Z-43's wings are of greater span and do not have the slight forward sweep of the Z- 42. The Z-43 first flew on 10 December 1968, with production starting in 1972. It proved less popular than its two-seat contemporary, and production ended in 1977 after 80 aircraft were built. The Z-143 is a version introduced in 1992, powered by a six-cylinder Lycoming O-540 engine, in parallel to the Z-42 being re-engined with a Lycoming to become the Z-242. Variants Zlín Z-43 Base model Zlín Z-43L Experimental model with Lycoming AE10540 D4B5 engine. Has noticeable short engine cowling. Only one was built (C/N: 0084, reg: OK-LOW, later OM-LOW) in 1990. It was converted back to stock Z 43 after 307 flight hours in 1998. Zlín Z-43M Experimental model. Only one was built Zlín Z-143 Improved model Aeronautical Manufacturing Enterprise Safir-43 An Algerian licence-built copy of the Zlín Z-43 Operational history Use by Tamil Tigers Pictures released by the Tamil Tigers in Sri Lanka indicate that they operated Czech-built Zlin Z-143 single-engine, four-seater light aircraft modified to carry four bombs mounted on the undercarriage. The Air Tigers carried out a suicide air raid on Colombo on 20 February 2009 using two of these aircraft. Under heavy anti-aircraft fire, one of these aircraft crashed into the Sri Lanka Inland Revenue Department building in Colombo. The other craft was shot down near Sri Lanka Air Force Base at Katunayake. Operators Civil operators Hungarian Police - 1 was in service in 1976, but a