Table 8. Weighted average and standard deviation of operating speeds by aircraft class and flight segment

WTC	Heavy		Medium		Turboprop
	평균	편차	평균	편차	AT75
이륙	15.02	7.36	146.7	4.84	110
초기상승	180.5	8.02	169.1	4.92	140
상승	290.9	2.48	289.4	2.41	210
순항	472.7	5.89	455.5	5.39	280
강하	290.6	4.29	281.8	9.37	275
접근	224.9	7.37	241.2	13.38	200
착륙	140.2	1.03	144.6	3.86	120