مشروع إكو

Scale prototype of the Echo satellite undergoing a Skin Stress Test on May 1, 1960.

مشروع إكو إيكو 1 Project Echo قمر صناعي، وقد كان أول قمر صناعي للاتصالات يطلق وذلك سنة 1960.

Echo 1 sits fully inflated at a Navy hangar in Weeksville, North Carolina

Echo 2 undergoing tensile stress test in a dirigible hangar at Weekesville, North Carolina

Echo 1 - 1960 issue

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 أنظر أيضاً

• List of communications satellite firsts
• Project SCORE – world's first communications satellite, launched in 1958.
• Courier 1B – world’s first active repeater satellite, launched in 1960.
• Telstar – first active, direct relay communications satellite, launched in 1962.
• AO-51, AMSAT-OSCAR 51 (also known as Phase 2E, or ECHO) – an amateur radio communications satellite launched in 2004.
• PAGEOS – a similar balloon satellite project
• U.S. space exploration history on U.S. stamps

 قراءات أخرى

• Elder, Donald C. (1995). Out from Behind the Eight-Ball: A History of Project Echo. AAS History Series. Vol. 16. Univelt for the American Astronomical Society. ISBN 0-87703-388-9.
• Nick D'Alto "The Inflatable Satellite", Invention and Technology Summer 2007, Volume 23, Number 1 pp. 38–43.