File:H. Julian Allen with Blunt Body Theory - A-22664.jpg

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Summary

Description	English: H. Julian Allen is best known for his "Blunt Body Theory" of aerodynamics, a design technique for alleviating the severe re-entry heating problem which was then delaying the development of ballistic missiles. His findings revolutionized the fundamental design of ballistic missile re-entry shapes. Subsequently, applied research led to applications of the "blunt" shape to ballistic missiles and spacecraft which were intended to re-enter the Earth's atmosphere. This application led to the design of ablative heat shields that protected the Mercury, Gemini and Apollo astronauts as their space capsules re-entered the Earth's atmosphere. "Harvey" Allen as he was called by most, was not only a brilliant scientist and aeronautical engineer but was also admired for his kindness, thoughtfulness and sense of humor. Among his many other accomplishments, Harvey Allen served as Center Director of the NASA Ames Research Center from 1965 to 1969. He died of a heart attack on January 29, 1977 at the age of 66.
Date	31 December 1957
Source	Ames Imaging Library System: Home - info - pic
Author	NACA
Other versions	H. Julian Allen with Blunt Body Theory - GPN-2000-001777.jpg:

This image or video was catalogued by Ames Research Center of the United States National Aeronautics and Space Administration (NASA) under Photo ID: A-22664.

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This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: Remove hair from center of image. Modifications made by Revent.

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File history

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	Date/Time	Dimensions	User	Comment
current	08:38, 17 October 2015	3,155 × 2,479 (1.93 MB)	Revent	Clone out another defect (looks like a pinhole in the film)
	08:32, 17 October 2015	3,155 × 2,479 (1.88 MB)	Revent	Clone out distracting hair on (lens or negative, not sure) from the center of the image.
	07:55, 17 October 2015	3,155 × 2,479 (2.37 MB)	Revent	=={{int:filedesc}}== {{Information \|Description={{en\|1=H. Julian Allen is best known for his "Blunt Body Theory" of aerodynamics, a design technique for alleviating the severe re-entry heating problem which was then delaying the development of ballisti...