Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE credits
The subject of UCAV design is an important topic nowadays and many countries have
their own programmes. An international group, under the initiative of the NATO RTO
AVT-201 Task group, titled “Extended Assessment of Reliable Stability & Control Prediction
Methods for NATO Air Vehicles”, is currently performing intensive analysis on
a generic UCAV configuration, named SACCON. In this thesis the stability and control
characteristics of the SACCON are investigated, with the purpose of carrying out a comprehensive
assessment of the flying qualities of the design. The study included the generation
of the complete aerodynamic database of the aircraft, on the basis of the experimental data
measured during TN2514 and TN2540 campaigns at DNW-NWB low speed wind tunnel.
Moreover, system identification techniques were adopted for the extraction of dynamic
derivatives from the time histories of forced oscillation runs. The trim of the aircraft was
evaluated across the points of a reasonable test envelope, so as to define a set of plausible
operative conditions, representing the reference conditions for subsequent linearization of
the dynamic model. The study provided a thorough description of the stability and control
characteristics and flying qualities of the unaugmented SACCON, laying the groundwork
for future improvement and validation of the configuration in the next design stages.
2014. , 192 p.