Aircraft General Knowledgeeasy#364
N1 on a turbofan engine refers to:
A
The high-pressure compressor speed
B
The propeller RPM
C
The free turbine speed
D
The fan/low-pressure compressor rotational speed
CorrectExplanation
N1 is the rotational speed of the low-pressure spool (fan and LP compressor/turbine), and is the primary thrust-setting parameter.
Ready for a timed quiz?
Test yourself with random questions from Aircraft General Knowledge and all other ATPL subjects.
Start a Practice Quiz