Appendix 3.5 Summary of Measured Helicopter Noise
Wayson Commercial Building			Operation Mode 1 - Approach from East and Take off to West
		23-Mar-05								15-Jan-05				Average Value
Duration of Each Operation, s		1330	1400	1430	1500	1530	1600	1630	1700	1530	1600	1630	1700
Operation Mode		Event 1	Event 2	Event 3	Event 4	Event 5	Event 6	Event 7	Event 8	Event 2	Event 3	Event 4	Event 5
Pass By		--	51	54	52	40	26	55	49	45	76	52	44	49
Approach		--	31	25	33	26	22	23	24	26	21	24	24	25
Hovering		--	36	47	23	36	25	35	27	25	25	22	24	30
Idling		--	569	492	675	748	443	913	680	719	786	931	548	682
Hovering		--	44	64	73	96	32	56	65	21	69	69	65	59
Take Off		--	19	15	14	14	12	20	14	5	6	6	6	12
Pass By		--	11	9	7	36	9	8	9	16	11	13	8	12
			0.634	0.558	0.634	0.2	0.27	0.71	0.558	0.558	0.34	0.558	0.27
Leq, dB(A)			0.558	0.558	0.558	0.34	0.41	0.066	0.41	0	0	0.133	0.71
Operation Mode		Event 1	Event 2	Event 3	Event 4	Event 5	Event 6	Event 7	Event 8	Event 2	Event 3	Event 4	Event 5
Pass By		--	75.3	72.1	74.8	74.6	73.0	70.3	71.8	71.2	71.5	70.9	71.1	68.0
with loading correction		--	75.9	72.7	75.4	74.8	73.3	71.0	72.4	71.8	71.8	71.5	71.4
without background		--	72.8	62.7	71.2	70.8	68.7	61.0	62.4	65.8	65.8	64.4	64.4
			19257661.9	1844166.0	13068587.1	12002508.6	7428602.0	1261827.5	1721075.8	3769759.1	3794124.4	2769244.8	2744035.7
Approach		--	76.1	73.7	73.7	75.1	74.5	70.6	74.3	73.9	73.8	73.5	73.1	71.1
with loading correction		--	76.7	74.3	74.3	75.3	74.8	71.3	74.9	74.5	74.1	74.1	73.4
without background		--	74.3	68.8	67.2	72.0	72.1	61.3	70.6	72.2	71.6	71.5	70.3
			27188508.1	7601701.0	5249273.4	15687407.0	16187782.5	1352072.6	11550929.5	16692396.7	14460257.4	14236392.1	10762229.8
Hovering		--	76.3	77.0	77.2	77.4	77.2	76.6	77.8	78.8	79.5	80.3	79.1	77.5
with loading correction		--	76.9	77.6	77.8	77.6	77.5	77.3	78.4	79.4	79.8	80.9	79.4
without background		--	74.7	75.8	75.9	75.9	76.2	75.9	76.9	78.8	79.3	80.4	78.8
			29410201.2	37935569.1	38851924.9	39346985.1	42043176.8	38691365.8	49462654.8	75037937.8	84901366.1	110622651.7	75532009.9
Idling		--	71.5	71.4	74.4	70.5	74.2	70.7	72.6	71.6	70.8	71.1	71	64.7
without background		--	61.5	61.4	67.5	60.5	71.0	60.7	62.6	65.1	57.3	62.2	62.1
			1412537.5	1380384.3	5664670.8	1122018.5	12498837.3	1174897.6	1819700.9	3234213.2	541108.1	1662311.0	1624472.2
Hovering		--	73.7	75.1	73.5	75.2	74.6	73.9	75.6	77.3	77	75	76.2	73.3
with loading correction		--	74.3	75.7	74.1	75.5	75.0	74.0	76.0	77.3	77.0	75.1	76.9
without background		--	68.3	72.5	65.5	72.5	72.5	69.9	73.2	76.3	75.9	73.3	75.8
			6703685.0	17741341.1	3578960.4	17612635.1	17891832.0	9787369.3	20847883.1	42482995.1	38637187.1	21386001.3	38126005.7
Take Off		--	78.4	76.3	77.7	78.3	76.7	74.7	76.4	79.5	83	78.3	80.6	78.1
with loading correction		--	79.0	76.9	78.3	78.6	77.1	74.8	76.8	79.5	83.0	78.4	81.3
without background		--	77.7	74.7	76.5	77.4	75.8	71.7	74.6	78.9	82.7	77.7	80.9
			58715719.4	29451899.6	45080002.5	54916899.8	37600522.5	14828402.1	28918737.7	77904909.3	188044695.3	58490604.7	124242474.4
Pass By		--	78.7	78.8	79.9	75.2	78.8	78.6	78.1	77.5	80.8	77.7	80.5	78.3
with loading correction		--	79.3	79.4	80.5	75.5	79.2	78.7	78.5	77.5	80.8	77.8	81.2
without background		--	78.1	78.3	79.5	72.5	78.4	77.7	77.2	76.5	80.4	76.9	80.8
			64342024.57	67203515.12	89244371.14	17612635.12	69564275.82	58417321.3	51903169.62	45013948	108744907	49495374.8	121164781
Lmax, dB(A)
Operation Mode		Event 1	Event 2	Event 3	Event 4	Event 5	Event 6	Event 7	Event 8	Event 2	Event 3	Event 4	Event 5
Pass By		--	80.0	80.4	80.4	80.1	78.9	73.9	80.4	74.9	74.9	73.5	76.0	77.9
with loading correction		--	80.6	81.0	81.0	80.3	79.2	74.6	81.0	75.5	75.2	74.1	76.3
without background		--	79.8	80.2	80.2	79.5	78.4	71.4	80.2	73.8	73.4	71.5	75.0
			95765132.0	105626313.3	105004379.2	88954921.9	68799952.3	13771186.3	105626313.3	23919673.3	21937967.8	14236392.1	31399514.6
Approach		--	81.5	78.3	78.7	80.7	79.4	72.7	83.3	80.4	78.3	78.0	78.4	79.5
with loading correction		--	82.1	78.9	79.3	80.9	79.7	73.4	83.9	81.0	78.6	78.6	78.7
without background		--	81.6	77.6	78.1	80.2	79.0	68.3	83.5	80.5	77.9	77.8	78.0
			143503050.6	57823025.2	63905140.7	104829868.5	78879139.7	6792436.9	224053812.4	113460736.0	61632372.1	60526196.5	62655927.8
Hovering		--	82.6	82.2	82.9	82.1	83.1	83.0	82.0	83.6	84.4	84.5	84.4	83.4
with loading correction		--	83.2	82.8	83.5	82.3	83.4	83.7	82.6	84.2	84.7	85.1	84.7
without background		--	82.8	82.3	83.1	81.8	83.1	83.4	82.1	84.0	84.6	84.9	84.5
			190619075.2	169657602.5	203754023.7	151627356.7	203466275.2	219827669.6	161164154.0	249275180.3	286370106.7	309259127.7	282124542.6
Idling		--	81.0	81.8	82.6	80.3	82.0	79.3	82.8	80.4	78.4	77.2	77.2	80.0
without background		--	80.3	81.2	82.0	79.5	81.6	78.4	82.3	79.9	77.6	76.2	76.2
			105939918	132301517.7	160092469.6	88954921.94	144685476.6	69978191.34	171491464.6	98427635.1	57701560.9	41260561.5	41515964.1
Hovering		--	80.1	81.9	79.3	82.4	78.7	79.1	82.4	81.1	84.7	78.9	83.4	81.4
with loading correction		--	80.7	82.5	79.9	82.7	79.1	79.2	82.8	81.1	84.7	79.0	84.1
without background		--	79.8	82.0	78.7	82.3	78.3	78.3	82.4	80.7	84.5	78.4	83.9
			96406382.1	157061874.1	74905588.8	169734673.1	67666585.8	67392136.6	171930718.7	117604770.6	283639386.5	68818510.6	246667333.7
Take Off		--	84.9	80.1	84.4	84.2	81.7	79.9	80.0	83.7	84.9	83.5	84.4	83.3
with loading correction		--	85.5	80.7	85.0	84.5	82.1	80.0	80.4	83.7	84.9	83.6	85.1
without background		--	85.2	79.9	84.6	84.3	81.7	79.2	79.6	83.5	84.7	83.4	85.0
			331445955.1	97304398.1	291306696.3	266249102.2	148751032.9	84084565.1	90845976.8	223202697.0	297548007.0	219613933.8	313374835.4
Pass By		--	82.4	82.1	83.9	83.3	82.3	80.6	80.3	84.0	83.6	83.1	83.9	82.9
with loading correction		--	83.0	82.7	84.5	83.6	82.7	80.7	80.7	84.0	83.6	83.2	84.6
without background		--	82.5	82.2	84.1	83.3	82.4	80.1	79.9	83.8	83.4	83.0	84.4
			177653319.0	165361988.2	257248196.1	213009470.4	172834126.4	101437931.6	98705990.2	239968458.6	217605229.1	199303033.5	278103206.3
Background		Event 1	Event 2	Event 3	Event 4	Event 5	Event 6	Event 7	Event 8	Event 2	Event 3	Event 4	Event 5
		--	73	72.8	73.4	72.6	71.4	71.8	72.8	70.5	70.6	70.5	70.4	71.9
		--	19952623.15	19054607.18	21877616.24	18197008.59	13803842.65	15135612.48	19054607.18	11220184.5	11481536.2	11220184.5	10964782