Originally Posted by
aeromech3
Buster 15 "I guess that you are referring to a P Total pressure input which would increase with forward speed.That being the case, I would not expect P Total pressure to increase by that much because forward speed would not be that high for this type of take off?"
Most modern jet engines would have a temperature sensor, static and dynamic port in their intake, for fuel control and EPR but not necessarily for indication.
Though a classic EPR case would have been Air Florida Flight 90 crash (note: I'm not calling it an accident).
Thank you.
Yes, I do understand that modern gas turbine engines have very sophisticated control laws and schedules, based upon a series of data inputs, both static and dynamic.
But normally, these would have been designed to be fail safe, such as having duplicate probes or sensors and in the event of an anomaly, these would revert to safe values.
This would be especially important during the critical take off phase.