Thereis a reallysimplerulethatinfluencesthedesignofeveryjetplaneyou'veeverflownoninprofoundways, andonceyouknowaboutit, you'llstartseeingitseffecteverywhere.
Thissimpleruleiscalledthearearule, andittellsustheidealdistributionofcrosssectionalareaalongthelengthof a transonicorsupersonicplanewilllooksomethinglikethis.
Because a gradualchangeincross-sectionresultsin a reductioninwavedrag, whichisthedragthatarisesfromshockwavesformingovertheplaneasitapproachesthespeedofsound.
TakethispatentfromtheJunkersCompanycompany, in 1944, showingobviousattemptstoexperimentwiththedistributionofcross-sectionalareaalongthelengthoftheplane.
I couldn't believemyluckwhen I sawthatthereal.engineeringdomainwasavailableonHover, andpurchaseditimmediately, andittooklessthan 20 secondstomakeitmine.
Thereis a reallysimplerulethatinfluencesthedesignofeveryjetplaneyou'veeverflownoninprofoundways, andonceyouknowaboutit, you'llstartseeingitseffecteverywhere.