MODEL AEROPLANE NOTES.

Dominion, Volume 29, Issue 80, 28 December 1935, Page 19

MODEL AEROPLANE NOTES.

BY

'AILERON'

Here we have a complete little model which is easy to fly, and which at the same time looks smart I have made the plans simple, so that you may use some of your own ideas if you like - For mstance, , tl1 ? fuselage may have a cockpit or a cabin, or the tail may have a differen shape. But do not alter the propeller, the undercarriage or the tail area Of y Draw a all SP the The wings are each eight inches long and have 1-l Gin. balsa ribs as drawn, 1-l Gin. x l-Bin. trailing edge, l-8m sq. leading edge, and a l-16in. sq. top spar. The tips are of bamboo bent carefully while being held well above a candle flame. The wing cannov be moved as it is plugged in with wire pins to l-Bin. sq. balsa strips extending across the bottom longerons. The wire pins are glued into the wing spars, but merely slide into holes in the strips. (All wire used is gauge. The fuselage is built in the normal manner. However, formers ar, cut from l-16in. flat balsa to the size shown on your plan, and glued in position after having had the three notches cut for the three stringers. When the stringers have been cemented in place the fuselage will have a smoothly-rounded top. Another stringer is glued on the outside of each side of the fuselage just about at the thrust line. The full-size section makes this clear. Glue the wing blocks in place, making the front one about l-16in. higher than the rear one. The undercarriage has stout bamboo logs. The tops aie bound to a piece of wire which passes across the fuselage and down to each leg. A longer wire brace is bound to the next crosspiece and bent round the struts. The wire axles are bound and glued to the legs. The wheels are Uin. aluminium. This is important as the weight adds to the stability. Noseblock and front and rear hooks are as usual. Leave a hole to get at the rear book. The prop, is carved from a block 7in. _x lin. x tin.; notice the shape to which the finished blades are carved, as in P. The tail surfaces are bent over a candle flame from bamboo, and glued in place, their spars being l-16in. sq. balsa. Cover the whole model, the tail only on one side, and dope all except the tail. Note that the elevator is bent so that its trailing edge is slightly higher than its leading edge; this is important. For flying, plug the wings into place and use four strands of l-Bin. flat rubber for power. The model may need a little weight at nose or tail to balance it. Try to get a long flat glide. If it seems under-powered, another strand may be added.