| MODERN PROBLEMS OF FLIGHT |
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| PREVIEW: SECRET OF FLIGHT |
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| Propulsion |
1959 |
State University of Iowa Dr. Alexander Lippisch |
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16mm |
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| The history of early flight |
1959 |
Dr. Alexander Lippisch State University of Iowa |
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16mm |
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| THE INDUCED DRAG |
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| The problem of drag |
1959 |
State University of Iowa Dr. Alexander Lippisch |
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16mm |
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