Interactive Aerospace Engineering and DesignMcGraw-Hill, 2002 - 356 страници This text contains an integrated bound-in CD-ROM, and has a strong emphasis on design. Its active visual approach and inclusion of space-orientated engineering make it an interesting examination of the aerospace engineering field. |
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Страница 39
... person via a helium balloon . Given are the densities of air and helium and the mass of a person . Pair = Pair 1.22 kg / m3 = 0.174 kg / m3 Phelium Mpayload 75 kg = EXAMPLE 3.2 P helium Using Eqn . ( 3.9 ) results in a diameter of 4.5 m ...
... person via a helium balloon . Given are the densities of air and helium and the mass of a person . Pair = Pair 1.22 kg / m3 = 0.174 kg / m3 Phelium Mpayload 75 kg = EXAMPLE 3.2 P helium Using Eqn . ( 3.9 ) results in a diameter of 4.5 m ...
Страница 248
... person crew , Gemini , for the third con- stellation of the Zodiac and its twin stars , Castor and Pollux . Gemini involved 12 flights , including two flight tests of the equipment without crew . Between March 1965 and November 1966 ...
... person crew , Gemini , for the third con- stellation of the Zodiac and its twin stars , Castor and Pollux . Gemini involved 12 flights , including two flight tests of the equipment without crew . Between March 1965 and November 1966 ...
Страница 281
... ( person day ) of water , 0.6 kg / ( person⚫ day ) of dry food , energy , and other expendable materials.4 • The five major in situ resources are regolith ( dirt ) , subsurface , polar caps , atmospheric gases of extraterrestrial ...
... ( person day ) of water , 0.6 kg / ( person⚫ day ) of dry food , energy , and other expendable materials.4 • The five major in situ resources are regolith ( dirt ) , subsurface , polar caps , atmospheric gases of extraterrestrial ...
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A Brief History of Flight | 1 |
Chapter | 4 |
Introduction to Engineering | 20 |
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