Every time we start a Jet Engine after we push the start lever in we get a EGT increase… now the EGT rises to what ever temperature for that time of the day and then rolls back to a stable temperature…(I presume this roll back is due to the increased airflow in the engine). Now as the thrust is advanced for taxi… the EGT rises and then drops back again…(also this time I guess, the temp. increases as the fuel flow has increased, but as the air flow over the eng has also increased in a few seconds the temp. subsequently rolls back again)
But has any one noticed, that when we set Take Off Thrust the EGT RISES AND KEEPS RISING as the aircraft accelerates… WHY ??? Shouldn’t the EGT drop as the airflow over the engine has increased ???
And if I have noticed correctly the temp. keeps rising on the Take Off Roll and even after Take Off and only comes down as the thrust is reduced at acceleration altitude..
