Aero Vodochody launched a new version of the popular L-39 jet trainer in Farnborough yesterday. The L-39NG will be powered by a Williams FJ44-4M turbofan.

Other changes from the original version include a new wet wing, lighter structure, single-piece canopy, and modern cockpit. Company officials told AIN that they hoped to finish the prototype by the end of 2016, certify the L-39NG in 2017 and begin deliveries in 2018.

An official from the Czech Ministry of Defence expressed enthusiasm about the project, but said the country had not yet placed an order order. He said the Czech air force was also considering re-engining its existing L-39s with the FJ44 turbofan, an interim stage towards the L-39NG that Aero Vodochody supports.

In fact, the Czech airframer said it had a civilian launch customer for the re-engined L-39, which would make its first appearance at the Reno Air races next year. Demilitarized L-39s are flying in 15 countries. The prototype of the original L-39 made its first flight in 1969 and serial production of the model began in 1971.

The company gave no details on a ground training system, or synthetic training, to accompany the L-39NG, and was vague about this when queried by AIN.