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St. Nicholas [serial] (1873)

Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 492

An illustration from St. Nicholas [serial], 1873, leaf 492
the ends itwill be better to put a flat-iron or other weight oneach end to make the strips glue together tighter.The thrust or propelling power depends asmuch upon the curves of the propeller as uponthe force with which the motor is driven. If thepropeller be too fiat, it will not take hold of… … DETAIL OF RUDDER AND PROPELLER. (SEE PHOTOGRAPHABOVE AND DIAGRAM ON PAGE 976.) blade be twelve inches long, the curve should beone inch high. When the glue is thoroughly dry and hard theprojecting step-like edges may be cut away. Afiat chisel or an ordinary penknife will do thework. Be careful to…

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