 | 1811 - Liczba stron: 558
...general difficulties, and adds ; " This fabric contained 54 square feet, and weighed only eleven pounds. Although both these wings together did not compose...than half the surface necessary for the support of a rnan in the air, yet during their waft they lifted the weight of nijie stone." The means of communicating... | |
 | 1812 - Liczba stron: 696
...general difficulties, and adds ; " This fabric contained 54 square feet, and weighed only eleven pounds. Although both these wings together did not compose...their waft they lifted the weight of nine stone." The means of communicating motion, and the importance of avoiding resistance are next considered ; and... | |
 | Aeronautical Society of Great Britain - 1871 - Liczba stron: 588
...the carved pole c, completes the wing. This fabric contained 54 square feet and weighed only ll1bs. Although both these wings together did not compose...air, yet during their waft they lifted the weight of 9 stone. The hinder edge, as is evident from the construction, being capable of giving way to the resistance... | |
 | 1894 - Liczba stron: 642
...pole C, completes the wing. This fabrick contained 54 square feet, and weighed only eleven pounds. Although both these wings together did not compose...for the purpose of a propelling power, may be used. I am the more particular in describing this wing, because it exemplifies almost all the principles... | |
 | Octave Chanute - 1894 - Liczba stron: 330
...rigidity. This double umbrella contained 54 sq. ft. and weighed only n Ibs., and the inventor says: "Although both these wings together did not compose...air, yet during their waft they lifted the weight of 9 stone" (126 Ibs.). It is not stated with what speed they were wafted nor with what power, but that... | |
 | James Means - 1894 - Liczba stron: 224
...and weighed oaiy ele\en pounds. Although both these wings together did. notcompcsc more tiiau holt the surface necessary for the support' of a man in the air, yet during their wait they lifted the we^htof niac stone. The liuiiier c,ii.je, as is evident frota the con?<truction,... | |
 | Sir George Cayley, Bart - 1910 - Liczba stron: 114
...the curved pole c, completes the wing. This fabric contained 54 square feet and weighed only 1 1 Ibs. Although both these wings together did not compose...air, yet during their waft they lifted the weight of 9 stone. The hinder edge, as is evident from the construction, being capable of giving way to the resistance... | |
 | Octave Chanute - 1997 - Liczba stron: 340
...douhle umhrella contained 54 sq. ft. and weighed only 11 Ihs., and the inventor says: "Although hoth these wings together did not compose more than half...air, yet during, their waft they lifted the weight of 9 stone" (126 Ihs.). It is not stated with what speed they were wafted nor with what power, hut that... | |
 | 2003 - Liczba stron: 776
...pole C, completes the wing. This fabrick contained 54 square feet, and weighed only eleven pounds. Although both these wings together did not compose...for the purpose of a propelling power, may be used. I am the more particular in describing this wing, because it exemplifies almost all the principles... | |
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... stone. The hinder edge, as is evident from the construction, being capable of giving way to the resistance of the air, any degree of obliquity, for the purpose of a propelling power, may be used. I am... 