old fella, tmbstory : thank you very much gentlemen for this good explanation !
so it seems that they taxied with normal ground idle and not low idle, that would explain it .
one more question regarding the throttle movement: does the T56 have torque/ temperature limiters installed so you can "firewall" the power levers on take off run ?
@ V1....oops : good point, it may be that they simply did not incorporate such a procedure because the regulations under which this planes were certified did not require it. it would make sense that it is just that simple.