top main planes,or wings. For this purpose we shall re-quire a pair of high steps to enable the fore-man erector to place the protractor on theunderside of the front part of the wing,preferably on the line of the bottom sur-face of the front spar; we may then expectto read any angle on the… … 211 HOW AN AEROPLANE IS BUILTthe angle of the wings, as erected, is only2 deg. Adjustments must now be made. FUNCTIONS OF BRACING WIRES. Before being able to make these adjust-ments we must consider how to do so. Forthis reason we must study the functions ofthe bracing wires, namely, the lift…
Airplanes
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