 | Aeronautical Society of Great Britain - 1871 - 588 str.
...section of such a surface parallel to the current and let it be capable of moving up and down upon g as a centre, and of being fixed in any position. The powers...machine to rise or fall in its path so long as the propelling force is continued with sufficient energy. From a variety of experiments upon this subject... | |
 | 1894 - 642 str.
...of such a surface, parallel to the current; and let it be capable of moving up and down upon G, as a centre, and of being fixed in any position. The powers...projectile or propelling force is continued with sufficient energy. From a variety of experiments upon this subject I find, that, when the machine is going forward... | |
 | James Means - 1910 - 272 str.
...machine, acting upon a lever equal in length to the distance the centre has removed. down upon G, as a centre, and of being fixed in any position. The powers...projectile or propelling force is continued with sufficient energy. From a variety of experiments upon this subject I find, that, when the machine is going forward... | |
 | Sir George Cayley, Bart - 1910 - 114 str.
...section of such a surface parallel to the current and let it be capable of moving up and down upon g as a centre, and of being fixed in any position. The powers...machine to rise or fall in its path so long as the propelling force is continued with sufficient energy. From a variety of experiments upon this subject... | |
 | 2003 - 776 str.
...of such a surface, parallel to the current; and let it be capable of moving up and down upon G, as a centre, and of being fixed in any position. The powers...projectile or propelling force is continued with sufficient energy. From a variety of experiments upon this subject I find, that, when the machine is going forward... | |
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G, as a centre, and of being fixed in any position. The powers of the machine being previously balanced, if the least pressure be exerted by the current, either upon the upper or under surface of the rudder, according to the will of the aeronaut, it will... 