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Vacuum Tanks for U-M's Supersonic Wind Tunnel at Willow Run, April 1947

Vacuum Tanks for U-M's Supersonic Wind Tunnel at Willow Run, April 1947 image
Published In
Ann Arbor News, April 16, 1947
Caption
VACUUM TANKS FOR WILLOW RUN WIND TUNNEL: These oil car tanks, converted from supplies intended for the USSR during the war, are pumped free of air to create the vacuum which draws air through the University of Michigan's supersonic wind tunnel at the Willow Run Laboratories. The air, which technicians hope to get up to speeds of 7,000 miles per hour, takes only 15 seconds to pass through the tunnel-- and two and one-half hours to be pumped back to the supply balloon.
Month
April
Year
1947
Rights Held By
Donated by the Ann Arbor News. © The Ann Arbor News.