. Animal locomotion, or Walking, swimming, and flying, with a dissertation on aëronautics. Animal locomotion; Aeronautics. AERONAUTICS. 213 Wenham^ has advocated the employment of superimposed planes, with a view to augmenting the support furnished while it diminishes the horizontal space occupied by the planes. These planes Wenham designates Aeroplanes. They are inclined at a very slight angle to the horizon, and are wedged forward either by the weight to be elevated or by the employment of vertical screws. Wenham's plan was adopted by Stringfellow in a model which he exhibited at the Aero- n
. Animal locomotion, or Walking, swimming, and flying, with a dissertation on aëronautics. Animal locomotion; Aeronautics. AERONAUTICS. 213 Wenham^ has advocated the employment of superimposed planes, with a view to augmenting the support furnished while it diminishes the horizontal space occupied by the planes. These planes Wenham designates Aeroplanes. They are inclined at a very slight angle to the horizon, and are wedged forward either by the weight to be elevated or by the employment of vertical screws. Wenham's plan was adopted by Stringfellow in a model which he exhibited at the Aero- nautical Society's Exhibition, held at the Crystal Palace in the summer of 1868. The subjoined woodcut (fig. 110), taken from a photograph. Fig. 110.—Mr. Stringfellow's Flying Machine. of Mr. Stringfellow's model, gives a very good idea of the arrangement] ah c representing the superimposed planes, d the tail, and g/the vertical screw propellers. The superimposed planes {a b c) in this machine contained a sustaining area of twenty-eight square feet in addition to the tail {d). Its engine represented a third of a horse power, and the weight of the whole (engine, boiler, water, fuel, superimposed planes, and propellers) was under 12 lbs. Its sustaining area, if that of the tail (d) be included, was something like thirty-six square feet, three square feet for every pound —the sustaining area of the gannet, it will be remembered (p. 134), being less than one square foot of wing for every two pounds of body. 1 Aerial Locomotion," by F. H. Wenham.— World of Science, June Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Pettigrew, James Bell, 1834-1908. New York, D. Appleton & company
Size: 2201px × 1136px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1870, booksubjectaeronau, bookyear1874
