| Show ON PRINCIPLE OF BOOMERANG airplane we Cons constructed along sam saint abi lines a as the th famous weapon of B bushmen houst although an anomaly to go to the savages savage of australia lov for P points Is 0 on an a airplane ml n e that at wai just hn B ant t w was n S done do 1 e in t the lle of iving in the air lr by momme humana the fit fundamental principle II of the pl plane 1 Is both old and simple having been it dis covered by the busha bushmen rift of the antipodes and em embodied add by the them 1 in the tha boomerang rang w which well b by y meeting in ita ire flight ight tile the air at a slight light angle got a lift heimi T the trajectory a of the boomerang ere may be in part horl horizontal ants I 1 or may een cole rise fill as a result of this lift any surface that 1 Is in more or jr less flat but that ire travels at a slight angle through the air tends to hnit the section be has st a slight camber a or convex ell curve a th alia lift la Is bleve increased lowd better res results OR are obtained it a body ot of a p prec lable thickness la IS used instead of Is a this sheet these points the australian australia ill div coveted covered investigation will show be little differ diffen race nce between the wing section of if the modern modem airl airplane dime and a cros section ectro emsel of a bede boomerang me made a b by y the h bushmen us himen ramm or wh whittled by a new york boy after he had bad visited the elern circus and ad had bad witnessed the stunts elect of the boomerang throwers th rowers the resemblance of the th boomerang moss cross section Is in closer to a pro propeller pelles section of an airplane as a boomerang la is a sort art of cr cross m between an airplane wing ing and a P propeller |
