¯2+0.2843x¯3−0.1015x¯4){\displaystyle {\overline {T}}(x)={\frac {t}{0.2}}\left(0.2969{\sqrt {\overline {x}}}-0.1260{\overline {x}}-0.3516{\overline {x}}^{2}+0.2843{\overline {x}}^{3}-0.1015{\overline {x}}^{4}\right)}මෙහි t යනු ඝණකම අනුපාතයයි.ආශ්‍රිත[සංස්කරණය]↑ "U.S Centennial of Flight Commission". සම්ප්‍රවේශය 2008-09-10. Experiments that he began to carry out in 1804 allowed him to learn more about aerodynamics and wing structures using a whirling arm device. Cayley observed that birds soared long distances by simply twisting their arched wing surfaces and deduced that fixed-wing machines would fly if the wings were cambered. This was the first scientific testing of aerofoils as the part of the aircraft that is designed to produce lift.ආශ්‍රිත[සංස්කරණය]ඩෙස්ක්ටොප් එයරොඩයිනමික්ස් ඩිජිටල් ටෙක්ස්ට්බුක්. සම්ප්‍රෙව්ෂය 9/7/08. [1] සංරක්ෂණය කළ පිටපත 2008-08-04 at the Wayback Machineතියරි ඔෆ් විං සෙක්ෂන්ස්, ඉරා එච්.ඇබට් සහ ඇල්බට් ඊ.වොන් ඩොයෙන්