In a gale too strong for other kites, a box kite will fly safely. The bridle is very easy to adjust, and the kite, though somewhat more elaborate than the others, is not difficult to make. Thin sticks like these can be sawed from the edge of a straight-grained board. An easy way to make the notches in the ends of the braces is to clamp them all in the vise at once, flat surfaces together, and then saw them out with a back-saw. This method presupposes that the uprights are all planed the same thickness. If they are unequal in thickness, saw the notches as wide as the thinnest upright and pare the others each to fit its proper upright.
In any construction like this, which has a number of parts fitting together, it is well to number the adjacent parts so that they may be put together again, each in its place. Little nicks are cut with a knife on the four edges of the braces where the lashing is to be wound.
When all the sticks are fitted together, glue the braces to the uprights 4-3/8" from the ends; two frames are thus made just alike. The lashing is done with large thread. Start it with two turns around the brace, then once around the upright, then once around the brace, then again around the upright, and so continue. The last few turns should be around the brace. See that the thread goes from the brace to the upright in the way most favorable for holding. When all the lashing is done, measure the center of each brace. Put one frame thru the other, and drive a pin thru the two centers.
Now the frames must be brought to a 14-1/2" square by means of strong thread. Near the top of one upright tie a 6 ft. thread, leaving a short end. Simply wind the long end twice around each upright, and tie the end with a bow-knot until all sides of the square can be measured and adjusted. When all sides are equal, make the bow-knot into a square knot. Wind some thread around each upright, except the first, in such a manner as to hold the long thread securely. Now adjust the other end of the kite in the same way. Measure 8-3/4" from the ends of each upright and put other threads around the square. These can be fastened at each upright after the first by three half-hitches.
The kite may be covered either with cloth or paper. If cloth is used, the edges should be hemmed. If paper, lay it on the floor, put glue on each upright, then press the paper to one upright. Wrap the paper around the kite and wind string around it several times to hold it while adjusting and pressing each corner. Glue the ends of the paper next, pulling them as tight as possible. Two flat-irons will hold the ends while drying. After the paper is on, its edges should be strengthened with a narrow ribbon of cloth glued to it.
Tie the bridle strings just above and below the upper cell and have the flying-knot 5" in front of the end of the brace.