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Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

Compasses, odographs, combat acoustics, and sonic deception

Compasses, odographs, combat acoustics, and sonic deception

Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Col... More

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