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James A. Van Allen journal, October 1955-March 1958
Page 47
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e) Allegany [22,000 corrected to] 22,500 lbs.sec : Total impulse 7500 lbs. thrust 3 seconds burning 159 seconds (overall specific impulse) 6.25 inches diameter -- smooth walled case 105-106 inches overall length plastic nozzle (?) with graphite insert Price not mentioned. But judged by N.A.C.A. to not be sufficiently proved-in. This development also continuing. f) Atlantic Research Arcite end-burner shapes up on paper as leaving best specific impulse of all. But development of large grains still in early stage. Arcite has other
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e) Allegany [22,000 corrected to] 22,500 lbs.sec : Total impulse 7500 lbs. thrust 3 seconds burning 159 seconds (overall specific impulse) 6.25 inches diameter -- smooth walled case 105-106 inches overall length plastic nozzle (?) with graphite insert Price not mentioned. But judged by N.A.C.A. to not be sufficiently proved-in. This development also continuing. f) Atlantic Research Arcite end-burner shapes up on paper as leaving best specific impulse of all. But development of large grains still in early stage. Arcite has other
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