Even for unsupervised solos I make it a point to try and be in the tower as often as possible. That I must be doing something right is proven by the fact that in the past 30 years I have never had a student have a serious problem on any solo flight. I ask my students to always contact me the night before a solo flight and again shortly after completion. This procedure is for flights to airports less than 50 miles to which one or more dual flights have been made. Beyond fifty miles the planning in all aspects are gone over with the student.
Weather is factored in the night before and prior to the flight.
Flight plans are filed, opened and closed for each leg. I know all frequencies to be used both for communications and for navigation. A student must demonstrate aeronautical knowledge of Parts 61 and 91 the POH, aircraft operation and the local airport area. Boundary areas of student flight 2. Local airport procedures 3.