| to Pass to sections: Aerodynamic research laboratory
On the end koromysla, established against the lattice centre, attach the seat of type executed full-scale ' Farman ' on which put the person. ãàðíèòóðû- óçíàòü öåíû. measuring pressure of a stream together on a seat and the case of the person, have received following results: at speed of a stream in 17 metre, in second pressure was expressed in 4,5 kgs to that there corresponded the work of resistance equal T - 17x4,5=76килограммометр.=1 losh. Force. Thus, at flight of an airplane 1 losh. Force of useful capacity of the motor is absorbed by front resistance of the pilot and a seat. By means of a small pipe resistance provolok various thickness, cables, tapes and any supporting surfaces and racks was defined. On the basis of the data received in laboratory, it is possible to establish that about 0,1 all gorizontalnogosoprotivlenija an airplane it is necessary on passive resistance and 0,9 on a horizontal component of reaction of bearing surfaces.
rather interesting results have been received in laboratory with definition of changes in an is rectilinear-homogeneous air stream at a flow it of bodies and surfaces of the various form. at these researches were applied as well-known methods, and vpervyeprimenennyj here a spark way. Into a stream enter existing in sale as a Christmas-tree decoration the aluminium candle giving at burning the whole sheaf of sparks of air burning in atmosphere of an aluminium powder.
|