Aircraft Gas Turbine Engine Health Monitoring System by Real Flight Data

Table 7

Multiple regression analysis results for EGT training data.

Model	Coefficients^a
	Unstandardized coefficients		Standardized coefficients	t	Sig.	Correlations
	B	Std. error	Beta			Zero order	Partial	Part
1
(Constant)	854.361	32.679		26.144	0.000
N1 speed	7.279	0.261	1.592	27.924	0.000	0.718	0.663	0.217
N2 speed	−7.605	0.529	−.698	−14.381	0.000	0.653	−0.415	−0.112
Pitch	8.654	0.553	0.293	15.651	0.000	0.874	0.444	0.122
Angle of attack	2.139	0.799	0.033	2.675	0.008	−0.003	0.084	0.021
Roll	1.592	0.238	0.056	6.687	0.000	−0.139	0.207	0.052
Vertical acceleration	−72.026	20.637	−0.029	−3.490	0.001	−0.107	−0.110	−0.027
Total air temperature	3.418	0.146	0.522	23.377	0.000	0.003	0.595	0.182
Ground/air	−33.776	5.793	−0.099	−5.831	0.000	0.007	−0.182	−0.045

^aDependent variable: Exhaust gas temperature.