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It is a free piston shock tunnel located at California Institute of Technology, USA. It is the largest free-piston shock tunnel in the world at a university. It is an impulse facility capable of reaching very high stagnation enthalpies (25 MJ/kg) and pressures (40 MPa). The test time is on the order of 1 ms.
NASA Langley's Hypersonic Facilities Complex, 1969. A hypersonic wind tunnel is designed to generate a hypersonic flow field in the working section, thus simulating the typical flow features of this flow regime - including compression shocks and pronounced boundary layer effects, entropy layer and viscous interaction zones and most importantly high total temperatures of the flow.
Part of the UK National Wind Tunnel Facility: CRIACIV Boundary Layer Wind Tunnel - University of Florence [25] Operational 2.44 m × 1.6 m × 10 m (8 ft 0 in × 5 ft 3 in × 32 ft 10 in) Building, bridges, general purpose Italy Closed circuit wind tunnel, T-shaped diffuser, one atmospheric test section (max speed 31 m/s [100 ft/s]).
In 1967, Congress granted approval for the construction of Tunnel 9. The facility became operational in 1976 and has since been providing aerodynamic simulation in critical altitude regimes associated with strategic offensive missile systems, advanced defensive interceptor systems, and hypersonic vehicle technologies.
Reusable human-rated hypersonic flight is not new. In the 1960s, the X-15 completed over 120 flights above Mach 5 at altitudes surpassing those of typical commercial aircraft. ... is now home to ...
part of New York Tunnel Extension Amtrak and New Jersey Transit (Northeast Corridor) Lincoln Tunnel: north tube: 1945 center tube: 1937 south tube: 1957: south tube: 2,440 m (8,006 ft) center tube: 2,504 m (8,216 ft) north tube: 2,281 m (7,482 ft) 6 lanes of NY 495 (NY side); Route 495 (NJ side)
A Chinese aerospace firm has completed the first test flight of a passenger plane that it claims can fly at Mach 4 – more than twice the speed of Concorde.. Beijing-based Space Transportation ...
A historic Brooklyn synagogue that serves as the center of an influential Hasidic Jewish movement was trashed this week during an unusual community dispute that began with the discovery of a ...