130) is attached to the central rod by gluing,
and drilling a hole through both parts and inserting a wooden peg; or the
upright may be mortised in. On no account use nail, tack, or screw. Attach
the vertical masts and the horizontal ones about to be described by gluing
and binding lightly with thread, or by neatly glued strips of the Hart's
fabric used for the planes.
Horizontal Spars, etc.--To consider now the horizontal section or part
plan of the model, from which, to avoid confusion, details of most vertical
parts are omitted. Referring to Fig. 133, it will be seen that we have
three horizontal masts or spars--HS1, 4 inches; HS2, 6 inches; and HS3,
slightly over 12 inches long. The last is well steamed, slightly curved and
left to dry while confined in such a manner as to conform to the required
shape. It should so remain at least twenty-four hours before being fixed to
the model. All the spars are attached by glue and neat cross bindings. If
the central rod be of triangular instead of T section, the join can be made
more neatly. The same remarks apply to the two 9 and 10 inch struts at the
propeller end of the rod, which have to withstand the pull of the rubber
motor on PPl.
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