Torque and Engine Anti Ice (Saab 340)
Hi all!
I had a discussion with a colleague that argued that it didn't matter if the EAI was on for takeoff or not, as regards to performance limited takeoff mass.
His argument was that the same torque is extracted and thus the performance will be the same.
I argued that because the EAI is powered from the 115 V frequency wild AC generator, connected to the AGB, this will become a part of the total torque readout as the AGB applies drag to the prop shaft. The torque that will be sensed (also for CTOT purposes) will then be a combined readout of both prop and AGB produced torque and therefore the actual power produced at the props will be less than if EAI had not been switched on.
I convinced myself and my colleauge, but I've tried to proove this to myself and I have so far been unsuccessful. Could anyone confirm that what I'm argueing is correct?
Regards/ LnS