Maximum altitude and maximum Mach number obtained with the modified Douglas D-558-II research airplane during demonstration flights
Description: From Summary: "Flights to explore the high altitude and Mach number regions were made with the Douglas D-558-II research airplane in August 1951. Maximum pressure altitude recorded was 77,500 feet and the maximum geometric altitude obtained from radar data was 79,500 feet above sea level. The maximum Mach number obtained was 1.87. When a standard atmosphere is assumed, this value represents a true airspeed of 1238 miles per hour; or at the existing temperature, 3 degrees Fahrenheit above standard, this represents an airspeed of 1243 miles per hour."
Date: April 20, 1953
Creator: Dahlen, Theodore E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department