Woomera (oz1860)

About this Plan

Woomera. A 43 inch span Wakefield. Model Aircraft, November 1959.

Quote: "Woomera. Bond Baker's Wakefiled Winner.

With this graceful and beautifully built model, Australia's Bond Baker won last year's World Wakefield Championship at Cranfield, competing against 72 of the world's leading Wakefield modellers, from 23 countries.

The model is of classical design and features stressed skin fuselage construction of moulded sheet balsa, silk covered. It is NOT recommended as a suitable project for beginners or inexperienced modellers.

Wing and Tail-unit. Make ribs R1, by the sandwich method, from quarter-grained medium 1/32 in sheet. Centre and outer dihedral break ribs are from 1/16 in, while the wing tip ribs must be traced and cut out in pairs. The centre section trailing edge is carved and sanded from 1/8 in medium balsa, then cut to exact length and notched to take the ribs. Tip trailing edges are traced from the plan and cur from 1/8 in meditim balsa, except W.3, which is cut from 3/16 in. sheet - do not carve to section until after assembly.

Lay waxed paper over the plan and pin down the inner panel leading edge (medium/hard 3/16 sq balsa), then pin down the trailing edge packed up to the correct angle. The method of packing up which I have found most satisfactory is to take a sheet of 1/8 in balsa and measure off 1-3/16 in at one end, then chamfer down to an accurate wedge shape. The end is then cut off at a distance of 1-1/8 in, thus making the resulting wedge about 7/64 in deep. The wedge is now cut into 26 sections, one of which is placed under the trailing edge at each of the rib positions. Having got the trailing edge accurately packed, insert the R1 ribs..."

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