The planes are of the built-up type, being made entirely from split bamboo according to the size and shape shown in the drawings. They are covered with bamboo paper and given two coats of bamboo varnish.
The propellers are of the racing type and carved from wood in the manner described in the chapter on propellers.
Plate X.
The machine is fitted with skids to prevent possible damage to the propeller and planes. The front plane is bent so as to form a slight dihedral angle. This tends to make the machine keep to a straight course.
FIG. 55. Racing blank and propeller.
The rubber skeins are each composed of 7 to 10 strands of 3/32 x 3/32 inch rubber. The best number will have to be determined for each particular machine.
Fleming-Williams Flyer. (Plate X.)
The Fleming-Williams model is a type well known in England where it has won many prizes. The motor base is a piece of "T" section wood 48 inches long. The detailed dimensions of the "T" section are given on the plate. A crosspiece B, 5/16 square and 8 1/2 inches long is fastened at one end of the motor by gluing and lashing as shown in the drawing.