B-70 Valkyrie in Trail Flight. Artist: Ren Wicks, 1988.
via archives.gov

B-70 Valkyrie in Trail Flight. Artist: Ren Wicks, 1988.

via archives.gov

X-1A in flight with flight data superimposed. Photo: NASA/Dryden Flight Research Center.
This photo of the X-1A includes graphs of the flight data from Maj. Charles E. Yeager’s Mach 2.44 flight on December 12, 1953. (This was only a few days short of the 50th anniversary of the Wright brothers’ first powered flight.) After reaching Mach 2.44, then the highest speed ever reached by a piloted aircraft, the X-1A tumbled completely out of control. The motions were so violent that Yeager cracked the plastic canopy with his helmet. He finally recovered from a inverted spin and landed on Rogers Dry Lakebed. Among the data shown are Mach number and altitude (the two top graphs). The speed and altitude changes due to the tumble are visible as jagged lines. The third graph from the bottom shows the G-forces on the airplane.

X-1A in flight with flight data superimposed. Photo: NASA/Dryden Flight Research Center.

This photo of the X-1A includes graphs of the flight data from Maj. Charles E. Yeager’s Mach 2.44 flight on December 12, 1953. (This was only a few days short of the 50th anniversary of the Wright brothers’ first powered flight.) After reaching Mach 2.44, then the highest speed ever reached by a piloted aircraft, the X-1A tumbled completely out of control. The motions were so violent that Yeager cracked the plastic canopy with his helmet. He finally recovered from a inverted spin and landed on Rogers Dry Lakebed. Among the data shown are Mach number and altitude (the two top graphs). The speed and altitude changes due to the tumble are visible as jagged lines. The third graph from the bottom shows the G-forces on the airplane.

A large Tu-144 scale model in a wind tunnel. In: Utak és járművek - A Szovjetúnió közlekedése, 1975 (Roads and vehicles - Transportation in the USSR).

A large Tu-144 scale model in a wind tunnel. In: Utak és járművek - A Szovjetúnió közlekedése, 1975 (Roads and vehicles - Transportation in the USSR).

Wind Tunnel Test - Schilieren photograph of an F11F-1 Tiger at Mach 1.4 in the 1-foot by 3-foot wind tunnel at NASA Ames. This image was taken in February 1965. 
Image source: NASA

Wind Tunnel Test - Schilieren photograph of an F11F-1 Tiger at Mach 1.4 in the 1-foot by 3-foot wind tunnel at NASA Ames. This image was taken in February 1965. 

Image source: NASA

North American XB-70 Valkyrie at the National Museum of the United States Air Force, Dayton, Ohio. (U.S. Air Force photo.)

North American XB-70 Valkyrie at the National Museum of the United States Air Force, Dayton, Ohio. (U.S. Air Force photo.)

"The XB-70, Mach 3 Bomber - 1961" Artist: John McCoy.
via defenseimagery.mil

"The XB-70, Mach 3 Bomber - 1961" Artist: John McCoy.

via defenseimagery.mil

North American XB-70A Valkyrie fuselage final assembly. Photo taken April 22, 1962 after the three fuselage sections had been assembled. (U.S. Air Force photo)

North American XB-70A Valkyrie fuselage final assembly. Photo taken April 22, 1962 after the three fuselage sections had been assembled. (U.S. Air Force photo)

Air Progress. October, 1965.
via JP Dubs

Air Progress. October, 1965.

via JP Dubs

Austrian pilot Felix Baumgartner celebrates after his record breaking high altitude jump for Red Bull Stratos in Roswell, New Mexico, USA on October 14, 2012.
Photo: Balazs Gardi

Austrian pilot Felix Baumgartner celebrates after his record breaking high altitude jump for Red Bull Stratos in Roswell, New Mexico, USA on October 14, 2012.

Photo: Balazs Gardi

Tu-144. In:  Ezermester, 1972/2. 

Tu-144. In:  Ezermester, 1972/2.