I'm with Mad Jock on this : He is not claiming just to multply your tach hours by 1.2 (which would amount to logging parker pen hours). He is just saying : if your flight school / flying club is charging you tacho hours then it pays to fly bottom of the green arc if your only objective is to get loggable hours and you don't have to be somewhere by a certain time.
The time to log would be the time from taxiing the aircraft towards a take-off until switching off on the parking stand which, for short haul flights, amounts to around 20% more flight time logged if you took to a conservative RPM setting.
So the club examiner wants to check the log-book he can check it against the invoices if he wants to, but then what ? real flight time hours are real flight time hours, right ? That is quite different from billed hours, which can be based on whatever scheme (hobbs hours based on oil pressure measurement, hobbs hours based on landing gear pressure, tach time, GPS distance,...) the operator deems appropriate.
Last edited by proudprivate; 1st Sep 2013 at 19:58.