nav question
here a question for qualified pilot (If I remember correctly of this question I have seen in a test):
you fly QDR 300 from XXX, you are instruct: "intercept QDR 250 , when on QDR 250, descent and maintain 4000ft, you are now crossing radial 250"
question 1: what angle of interception do you take?
question 2: when do you start your descent?