"Paul Lee" wrote:

What about taxing tests on a experimental? Does that count?

Taxi time only counts when it's done in order to fly.
Ground tests in and of themselves should be logged
in the _airplane_ record (I recorded time from
startup to shutdown) but not in the pilot's log.

From CFR 14 Part 1.1, definitions:

Flight time means:

(1) Pilot time that commences when an aircraft moves under its own power for
the purpose of flight and ends when the aircraft comes to rest after
landing; ...

It's that 'purpose of flight' thing that gets you.

Dave 'iced in' Hyde