Crash Lander wrote:
"Jose" wrote in message
...
Surely, any instructor that values his life, would at least do a
brief pre-flight himself, regardless of whether the student has
already done one or not?

Yes. But that doesn't mean that the student needs to be supervised
while he does his own preflight.

Jose

How then, does it 'save time' if the student does the pre-flight
before the instructor arrives, if the instructor is going to do it
again anyway? Crash Lander

Becasue an instructor is capable of doing a preflight faster than a student.