Dependent Sketch in new plane

For making loft guide line a spline sketch ( sketch1) is drawn on a
plane . Same sketch is copied as (sketch2) ( for keeping same profile)
on other plane which is at right-angle to previous one. How can I
establish relation between these two sketches , so that any change in
sketch1 will get reflected or copied automatically in sketch 2.

 

You will have to use linked dimensions to accomplish this.

Jeff

 

Insert "Derived Sketch", sketch profile will be linked, you just have
to lock the position down with sketch relations.

 

I tried this.
SPline skecth is drawn on front plane, when tried to derive on Right
plane. SW gives error message "sketch cannot be inserted using the
currently selected edge"
However derived sketch works perfectly on the model face.