Companies such as PBS Velká Bítes stand or fall on the strength of their innovation and thus their research and development. Manufacturers of a range of high-quality, reliable and light turbines for light, experimental and unmanned aircraft, the company invests significant effort, resource and funding in R&D and periodically a new engine or auxiliary power unit will appear as a result.

Latest to join the PBS stable of turbojets is the TJ40-G1. Designed for UAVs, target drones and gliders, among other airframes, the engine can provide speeds of up to M0.35 and take its parent aircraft to an altitude of 4,500m. Weighing just 3.3kg (3.5 with engine clamp and suction screen), the TJ40-G1 provides take-off thrust of 395N for a maximum of five minutes, during which fuel consumption is approx. 1.2l/min.

The most recently approved and tested parameters of TJ40 are: Range of altitudes -300m÷9,000m; range of flight speeds 0÷0,8M.

Other features include engine start temperatures as low as -40°C and a shortened start-up sequence that comes in at less than 30s. The utility of the engine will be greatly enhanced by the ability “for repeat starts – on the ground or in flight – and the fact that the engine can be in any position at the time of launch,” Head of Marketing Katerina Fisova told Mönch during Future Forces Forum 2016 in Prague on 20 October.

Tim Mahon


Caption: PSB engines power a variety of unmanned aerial vehicles among other fixed- and rotary-wing aircraft. (Photo: PSB Velká Bítes)

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