Military aeroplanes; an explanatory consideration of their characteristics, performances, construction, maintenance, and operation, for the use of aviators . Normal Surface Inclined Surface OF AIR FLOW. Photograi)iis of air flowing trom left to right, on llat surfaces, made at the Kout-chino laboratory. Note the general deflection of the air stream, in the lower righthand photo, where the plane is at a low angle of incidence. CHAPTKR Vr. AERODYNAMIC THEORY. Although it is not so essential to consider the theoretical deriva-tion of formulae for air resistances in a work of this kind,
Military aeroplanes; an explanatory consideration of their characteristics, performances, construction, maintenance, and operation, for the use of aviators . Normal Surface Inclined Surface OF AIR FLOW. Photograi)iis of air flowing trom left to right, on llat surfaces, made at the Kout-chino laboratory. Note the general deflection of the air stream, in the lower righthand photo, where the plane is at a low angle of incidence. CHAPTKR Vr. AERODYNAMIC THEORY. Although it is not so essential to consider the theoretical deriva-tion of formulae for air resistances in a work of this kind, a certaininterest is attached to the application of the more recent experimentson the flow of air streams to the older conception of the mechanics ofthe air. An outstanding experimental fact in air stream ])hotographicstudies, that vitiates many established aerodynamic derivations, isthat the air stream, when it impinges against a normal surface, dividesto pass around the edges, and in doing so actually imprisons a cushionof dead air against the surface, a phenomenon constantly met within wind effects on moving vehicles, etc. Furthermore, in di\iding,the air stream acts as if separated by two ph^^sical su
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License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectairplanes, bookyear19
