The purpose of the longitudinal control lines is __________(a) to connect end points, shoulder points and tangent point of different conic curves(b) to connect tangent points at half distance only of same conic curve(c) only to produce control of lifting lines of same curve(d) to change lifting line slopeI had been asked this question in quiz.The query is from Configuration Layout topic in chapter Configuration Layout and Loft of Aircraft Design

The purpose of the longitudinal control lines is __________(a) to conn

1.	The purpose of the longitudinal control lines is __________(a) to connect end points, shoulder points and tangent point of different conic curves(b) to connect tangent points at half distance only of same conic curve(c) only to produce control of lifting lines of same curve(d) to change lifting line slopeI had been asked this question in quiz.The query is from Configuration Layout topic in chapter Configuration Layout and Loft of Aircraft Design
Answer» The correct choice is (a) to connect END points, shoulder points and TANGENT point of different conic CURVES The explanation: Longitudinal CONTROL lines are used to develop SMOOTHLY – lofted fuselage. Longitudinal control lines will connect end points of different conic curves. It is also used to connect different shoulder points and tangent points to respective shoulder points and tangent points of different conic curves.

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