Projekt, badania i wykonanie polskiego bezzałogowego śmigłowca ILX-27

Analysis of the operating load of foil-air bearings in the gas generator of the turbine engine during the acceleration and deceleration maneuver

“…There has been already developed in Poland a number of such constructions, including unmanned helicopter ILX-27. This helicopter has been designed as an unmanned aircraft of a 1,000 kg storage class [4]. Another example of work on unmanned aircraft (unmanned helicopters) is a construction based on the SW-4 Puszczyk, a helicopter manufactured by PZL-Swidnik S.A. [6].…”

Analysis of the bearing nodes loads of turbine engine at an unmanned helicopter during a jump up and jump down maneuver

“…An example of two helicopters, of which one is a construction based on SW-4 helicopter from PZL Swidnik S.A., while the second is ILX-27 developed by the Institute of Aviation, Air Force Institute of Technology and Military Aviation Company No. 1 in Lodz [4,6]. In the ILX-27 helicopter, a piston engine Lycoming 0-540-F1B5 is used with a power of 191kW (260hp), which gives the mass/power ratio with a maximum mass a helicopter equal to 4.23 kg/hp.…”