WEBVTT

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This year , Arnold Engineering

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Development Complex celebrates 75 years

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of American innovation . Early testing

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at Arnold included vital work on

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America's Atlas rocket program . Tunnel

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engineers were the first to explain the

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odd ballooning that was coming from the

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nozzle throat , overcoming serious

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engineering problems in our early

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missile program . Atlas boosters were

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used to launch the first US astronauts

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into orbit . Make plans to come

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celebrate the 75th anniversary of AEDC

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with us at the Arnold Air Force Base

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Open House on June 27th .