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Aviation History
1909
1909 - 0178.PDF
MARCH 27, 1909- lifting device pure and simple, and forms the central portion of the structure; extended on either side, how- ever, are a pair of biplanes proper with their cutting edges arranged transversely in the usual way. In front understand that models which have been made have given remarkable results, lifting themselves by clockwork mechanism right up into the air, and a curious feature- which has been found to be associated with this principle- AERO SHOW.—The Lamplough Orthopter Biplane, front elevation, showing the cranks which sway the liftersand the link motion which reverses their angle of inclination so that each stroke is effective. The dotted lines indicate the limiting positions of the lifters in each direction. and behind are biplane elevators enclosing single rudders, and propulsion is effected by a pair of wooden propellers. In the machine exhibited the whole construction is of wood, but when finished the vertical supports will be of tubular steel and the diagonal ties of steel wire. We is that the lifting planes act as a parachute to steady the- descent when the motive power stops. The lifting action, of the lifting planes which has already been described may perhaps be better understood by considering it as. analogous to the slight paddling motion which a swimmer makes with his hands whilst he floats on his back. M PASSAT GIVES HIS MAUD AU.RM " l£ it would Ve outside it would deave thee aire for better ^>s! " Oh yes,- that is uve-er t to Lift WAITING TT INSPECT THE WELLWiN DIRIGIBLE The Lighter Side of the Aero Show. J8O
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