The Side-By-Side test stand with twin three-bladed rotors is seen installed in the in the U.S. Army’s 7- by 10-foot wind tunnel at NASA’s Ames Research Center in California.
NASA
Side-by-Side Test 2 (SBS2) Performance Test
The Side-By-Side (SbS) Test Stand features two counter-rotating, intermeshing rotors that can vary in lateral separation. The test stand can pitch nose up and nose down, with each rotor having the capability to be trimmed independently through cyclic and collective controls. The SbS Test Stand tested in the U.S. Army 7- by 10-Foot Wind Tunnel at NASA Ames Research Center.
Data from the second test of the Side-By-Side is expected to be available for download here in the summer of 2025.
