The Aviationist on MSN6 天
Bell Releases First Image of X-Plane Model Used in Wind Tunnel Testing for DARPA SPRINT Program
The wind tunnel testing was carried out to validate the company's Stop/Fold Jet Transition capability. Bell has completed ...
Aviation Week6 天
Bell Tunnel-Tests Stop-Fold HSVTOL For DARPA’s Sprint
Bell has completed wind-tunnel testing of its proposed X-plane for a DARPA project to demonstrate a high-speed ...