The development of small demonstrators is planned to gather extensive knowledge on specific critical aspects, as to tackle specific challenges that can jeopardize the development of FTB families.
In flight
- Flight testing is essential, since ground testing, including wind tunnel testing, can simulate pressure and temperature conditions as well as dynamic flight loads to a limited extent or at extremely high cost.

On board view of the approach phase for the Scaled Flight Demonstrator (SFD) used to validate the Scaled Flight Testing approach.
In wind tunnel
- The demonstrator test outcomes will validate credibility of used design methods both for the demonstrator itself and for the LR H₂ TAW FTB family.


An example of half-wing model on a platform in ILOT’s T-3 wind tunnel. The model was developed and tested to check the usability of flow control actuation system for load control in ILOT-lead Clean Sky 2 STARLET project.