Results of investigations, in which thermal protection was provided by subliming ablator or transpiration cooling; regime covered altitude band from about 177,000 to 25,000 ft and peak velocities ranged from 3900 to 22,200 fps; similarities between subliming ablators and transpiration cooling are described, and it is shown how effectiveness of ablation materials can be predicted accurately from transpiration data; procedure permits direct comparison of 2 types of heat protection.
Free-flight investigations of subliming ablators and transpiration cooling at hypersonic velocities
J Spacecraft Rockets
Journal of Spacecraft and Rockets ; 1 , n 5
1964
4 pages
Article (Journal)
English
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