Appendix 3.5 Summary of Measured Helicopter Noise
Harbour Commercial Building			Operation Mode 2 - Approach from West and Take off to East
		4-Apr-05								27-Jan-05				Average Value
Duration of Each Operation, s		1400	1430	1500	1530	1600	1630	1700	1730	1430	1500	1530	1600
Operation Mode		Event 2	Event 3	Event 4	Event 5	Event 6	Event 7	Event 8	Event 9	Event 1	Event 2	Event 3	Event 4
Pass By		14	18	30	18	27	11	20	23	19	16	29	34	22
Approach		26	30	34	40	29	31	38	34	39	28	28	30	32
Hovering		30	33	29	36	33	34	41	40	24	23	20	18	30
Idling		604	494	703	777	443	721	574	745	702	478	871	898	668
Hovering		42	70	44	59	68	42	60	50	48	39	45	47	51
Take Off		10	14	15	12	15	13	14	15	11	13	11	10	13
Pass By		29	24	33	35	36	31	32	22	24	25	38	34	30
		0.558	0.558	0.634	0.558	0.41	0.71	0.558	0.41	0.558	0.485	0.341	0.788
Leq, dB(A)		0.71	0.634	0	0	0	0.2	0.41	0.2	0.066	0.133	0	0.634
Operation Mode		Event 2	Event 3	Event 4	Event 5	Event 6	Event 7	Event 8	Event 9	Event 1	Event 2	Event 3	Event 4
Pass By		72.6	71.5	74.6	73.4	72.5	72.5	72.2	73.0	73.1	74	72.9	73.1	65.7
with loading correction		73.2	72.1	75.2	74.0	72.9	73.2	72.8	73.4	73.7	74.5	73.2	73.9
without background		65.7	62.1	71.4	66.9	62.9	62.8	62.8	63.4	61.3	69.1	53.0	64.9
		3709445.8	1606201.4	13874919.1	4924491.1	1954339.5	1886517.4	1887122.1	2192804.9	1339057.6	8134030.6	198176.0	3099735.8
Approach		74.3	75.7	75.1	75.4	75.6	74.6	75.3	75.8	77	78.6	79	76	74.5
with loading correction		74.9	76.3	75.7	76.0	76.0	75.3	75.9	76.2	77.6	79.1	79.3	76.8
without background		71.3	73.9	72.5	72.9	73.0	71.7	72.5	72.8	75.5	77.9	78.1	74.2
		13623100.2	24464607.2	17947085.6	19474945.8	19949867.1	14907920.1	17637126.6	18874360.1	35112560.0	61050171.0	65028172.6	26351320.5
Hovering		77.1	81.6	76.7	77.6	77.1	77.5	77.4	77.7	77.5	79	79.4	78.1	77.5
with loading correction		77.7	82.2	77.3	78.2	77.5	78.2	78.0	78.1	78.1	79.5	79.7	78.9
without background		76.2	81.7	75.4	76.6	75.6	76.7	76.2	76.2	76.2	78.4	78.7	77.5
		41335211.4	146578669.5	34626814.6	45480854.1	36411142.4	47167043.2	41595524.3	41805585.0	42066413.2	68865174.5	73317688.7	56030901.8
Idling		73.8	74.6	74.4	73.3	73.4	73.3	74.0	73.1	74.7	73.4	74.8	74.8	67.4
without background		68.5	70.4	69.1	61.5	62.8	63.7	66.3	63.1	68.8	62.8	69.7	69.5
		7005892.7	11057520.9	8043841.0	1426997.7	1924993.1	2325013.7	4225903.0	2041737.9	7634476.0	1924993.1	9306555.9	8819896.3
Hovering		76.7	77.7	77.5	78.9	78.0	77.5	75.9	78.2	79.1	78.9	80.5	79.5	77.2
with loading correction		77.4	78.3	77.5	78.9	78.0	77.7	76.3	78.4	79.2	79.0	80.5	80.1
without background		75.8	77.0	75.7	77.6	76.3	76.0	73.4	76.7	77.8	77.8	79.6	79.1
		38098333.1	50356871.8	36735686.5	57672088.5	43143111.3	39829758.4	21863327.3	46274420.6	60650132.8	60086072.0	91308884.1	81753936.9
Take Off		81.0	80.8	80.6	80.7	81.1	80.4	79.7	80.5	79.1	79.1	78.8	78	79.5
with loading correction		81.7	81.4	80.6	80.7	81.1	80.6	80.1	80.7	79.2	79.2	78.8	78.6
without background		81.2	80.8	79.8	79.9	80.4	79.8	79.1	79.8	77.8	78.1	77.4	77.1
		131269372.0	121340547.4	95316916.2	97537132.3	108872332.0	95760755.0	81672231.3	94581079.0	60650132.8	63858179.5	54964796.2	51633346.6
Pass By		74.0	73.8	74.8	73.5	73.9	74.5	74.7	74.0	72.8	74.4	74.4	73.6	68.6
with loading correction		74.7	74.4	74.8	73.5	73.9	74.7	75.1	74.2	72.9	74.5	74.4	74.2
without background		71.0	70.0	70.3	63.9	66.6	70.2	70.6	65.3	62.9	69.3	68.2	67.1
		12597688.14	9975961.935	10701071.21	2434588.236	4594466.007	10457485.09	11541000.43	3394003.391	1934639.274	8446177.557	6649325.725	5129785.316
Lmax, dB(A)
Operation Mode		Event 2	Event 3	Event 4	Event 5	Event 6	Event 7	Event 8	Event 9	Event 1	Event 2	Event 3	Event 4
Pass By		73.9	74.5	77.7	75.7	75.5	73.8	74.1	75.0	74.6	76.4	74.8	76.8	72.9
with loading correction		74.5	75.1	78.3	76.3	75.9	74.5	74.7	75.4	75.2	76.9	75.1	77.6
without background		70.4	71.5	76.9	73.5	72.8	69.6	69.2	70.7	70.4	74.6	70.7	75.6
		10930144.7	14265137.1	48641219.9	22294778.1	19041575.5	9194192.6	8335099.4	11844939.6	10916807.2	28856387.0	11773342.7	36005592.4
Approach		79.1	81.7	77.7	79.6	80.9	79.5	79.9	79.7	84.9	83.2	85.1	82.2	81.7
with loading correction		79.7	82.3	78.3	80.2	81.3	80.2	80.5	80.1	85.5	83.7	85.4	83.0
without background		78.8	81.8	76.9	79.2	80.6	79.3	79.6	79.0	85.2	83.3	85.2	82.5
		75444806.7	150407139.8	48641219.9	83752449.5	115254633.2	85899635.7	90229026.1	79656516.1	329520962.0	213661987.1	329132792.8	177596060.2
Hovering		81.8	83.9	82.7	83.8	81.2	83.8	82.6	82.7	82.0	84.4	86.2	82.1	83.5
with loading correction		82.4	84.5	83.3	84.4	81.6	84.5	83.2	83.1	82.6	84.9	86.5	82.9
without background		81.9	84.2	82.9	84.0	81.0	84.2	82.7	82.6	82.0	84.6	86.3	82.4
		155125144.3	261343018.2	195978097.3	252819510.0	124924562.2	263433390.3	186025862.0	181735787.1	158341144.9	288011411.0	430027559.6	173066820.7
Idling		78.8	82.9	79.3	78.0	78.3	78.9	81.6	77.1	79.9	78.1	80.0	78.8	78.5
without background		77.7	82.5	78.2	76.3	76.8	77.7	80.9	74.5	78.8	76.5	79.0	77.4
		58875321.0	177201665.9	65615357.8	43143111.3	47655674.4	58570104.5	123651015.8	28377461.9	75846105.9	44612799.8	79107038.7	54478136.6
Hovering		83.2	83.7	84.5	84.8	84.3	83.8	82.6	84.1	84.3	83.7	85.9	84.6	84.1
with loading correction		83.9	84.3	84.5	84.8	84.3	84.0	83.0	84.3	84.4	83.8	85.9	85.2
without background		83.6	84.0	84.2	84.5	84.0	83.7	82.5	83.9	84.0	83.5	85.7	84.9
		229054323.9	253486102.0	262339847.1	282042548.9	249200857.2	232134036.0	179093225.7	246244803.9	251397444.8	221760372.1	368152183.7	312354030.4
Take Off		83.3	83.9	83.8	82.9	84.3	83.9	82.4	84.0	83.6	84.1	85.0	83.2	83.6
with loading correction		84.0	84.5	83.8	82.9	84.3	84.1	82.8	84.2	83.7	84.2	85.0	83.8
without background		83.7	84.3	83.4	82.4	84.0	83.8	82.3	83.8	83.2	83.9	84.7	83.4
		234785256.3	266270611.2	220384845.9	175031836.8	249200857.2	237984971.1	170092364.5	240118122.7	210717183.1	245080405.8	295334804.7	220389037.2
Pass By		79.8	77.6	80.0	79.1	77.9	76.1	78.4	75.2	75.7	76.9	77.3	78.0	76.6
with loading correction		80.5	78.2	80.0	79.1	77.9	76.3	78.8	75.4	75.8	77.0	77.3	78.6
without background		79.8	76.9	79.1	77.9	76.2	73.7	77.4	70.7	72.0	74.8	75.2	77.1
		95478060.9	48805823.7	80501554.0	61330428.5	41706877.0	23603344.7	55139666.4	11765008.5	15844843.2	30548379.4	32810218.3	51633346.6
Background		Event 2	Event 3	Event 4	Event 5	Event 6	Event 7	Event 8	Event 9	Event 1	Event 2	Event 3	Event 4
		72.3	72.5	72.9	73	73	72.8	73.2	73.6	73.4	73	73.2	73.3	73.0
		16982436.52	17782794.1	19498446	19952623.15	19952623.15	19054607.18	20892961.31	22908676.53	21877616.24	19952623.15	20892961.31	21379620.9