StNicholas [serial] . THE PROPELLER BEFORE CUTTING DOWN. surements, but a proportion of one to three, thatis, a width three times the depth, will be foundto work well in actual flights. Later, when youcome to build more complicated aeroplanes and imitate the models illustrated in these articles,you may vary the proportion and size. In placingthe planes or wings on the backbone or motorbase have the inside edges about fifteen inchesapart. With the two planes, each ten inches indepth, this will make the aeroplane thirty-fiveinches in length, or about one yard. It should be remembered all the aer
StNicholas [serial] . THE PROPELLER BEFORE CUTTING DOWN. surements, but a proportion of one to three, thatis, a width three times the depth, will be foundto work well in actual flights. Later, when youcome to build more complicated aeroplanes and imitate the models illustrated in these articles,you may vary the proportion and size. In placingthe planes or wings on the backbone or motorbase have the inside edges about fifteen inchesapart. With the two planes, each ten inches indepth, this will make the aeroplane thirty-fiveinches in length, or about one yard. It should be remembered all the aeroplanemodels here suggested and illustrated are farfrom being perfect. The science of aviation isstill very young, and the best we can do at pres-ent is to experiment with all sorts of models, andso gradually develop the best form. The greataviators, the Wright brothers, Curtiss, andothers, admit very frankly that their aeroplanes. THE DIAGRAM OF A measure 20 inches by 8 inches. The motor base is 36 inches inlength. This aeroplane is further illustrated in the two pictures inthe first column on the next page. are still very crude, but it is only by workingwith them that the perfect flying-machine may bedeveloped. It is exactly the same with the boyswho build toy aeroplanes; by building the simplemodels here described one will soon gain newideas and learn to build models which will flyfaster and farther. The motor is the most interesting, as it is themost important, detail of the aeroplane. Al-though it is possible to buy the propellers forthe motor, it is advisable that every boy shouldwork out this problem for himself. An effectivemotor is easy to build, and costs practically noth-ing. The length of your propeller-blades shouldbe equal to about one third the spread of yourlargest plane. For this you will need six stripsof some light wood, such as pine or ash, althougha cigar-box wood, if the gr
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Keywords: ., bookcentury1800, bookdecade1870, bookidstnicholasse, bookyear1873
