Periodic Reporting for period 2 - SCALAiR (Scaled Test Aircraft Preparation and Qualification)
Reporting period: 2018-04-01 to 2019-09-30
Using the A320 as well-known reference aircraft enables LPA 1.3 to demonstrate the possibility to design and manufacture a scaled flight demonstrator having an overall behavior that is representative for the full-scale aircraft.
Two flight demonstrators were planned, of which only the SFD will be developed within this project:
• Scaled Flight Demonstrator (SFD): The SFD will have the full representation of the geometry and will be equipped with the complete arrangement of the flight and data-acquisition systems. It will be a scaled version of the A320 with the exception of the aeroelastic behavior. The SFD will be used to check the flight control and data acquisition systems and can be used for static parameter identification.
• Dynamically Scaled Flight Demonstrator (DSFD): The DSFD has the same outer geometry and flight control system, but will be designed to have identical aero dynamic behavior of the reference aircraft. The DSFD will be used to demonstrate the representativeness of the overall dynamic behavior of the full-scale aircraft.
The attached picture illustrates how scaled demonstrators could be a valuable intermediate step between the already existing experimental facilities and computational capabilities (left side) and the full scale development of disruptive configurations for transport aircraft (right side).
Partially independent of the SFD geometry is the design of the electrical system for the SFD. Using the Operational requirements defined within LPA 1.3 the high level architecture of the electrical system has been defined and the basis autopilot to be used has been selected. Work is in progress to select and design other components of the electrical system, e.g. datalink system, power supply, vehicle control unit, etc.
Two projects in LPA 1.3 design components that need to be integrated in the SFD; the NOVAIR project that designs the Flight Test Instrumentation system used to monitor and measure specific parameters for the scaling analysis and the analysis of the SFD behavior and the HyperF project which designs the Guidance and Navigation Computer that will initiate and control the specific test maneuvers of the SFD. These systems have a close interface with the SCALAiR project both electrical interfaces and structural interfaces.
From a financial, operable as well as technical point of view there are opportunities for scaled flight testing, going beyond the state-of-the-art. In fact, considering scale models, at the moment Europe is not at the state-of-the-Art: United States companies are the major contributors. SCALAiR extends the scope by increasing the number of applications and uses an existing full-scale aircraft so that representativeness can be actually analyzed.