Techsburg is a leader in aerodynamic/aeroacoustic testing using powered aircraft models, including anechoic wind tunnel testing, outdoor static testing, and flight testing. These tests support fixed wing and VTOL aircraft programs, as well as Techsburg's own propulsor R&D programs. In conjunction with partner company AVEC, Inc, Techsburg has measured the performance and acoustic characteristics of multirotor/eVTOL aircraft, open propellers, and ducted propulsors. Typical projects involve Techsburg using custom in-house design/optimization software to design low-noise propulsors while meeting performance constraints, or customers furnishing their own propulsor designs for testing. Techsburg and AVEC have conducted extensive aerodynamic and/or acoustic testing at the following facilities: