Appendix 3.5 Summary of Measured Helicopter Noise
Ka On 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		73.9	76.0	73.5	73.2	73.1	73.8	73.2	74.4	74.4	78.2	76.5	75.1	72.9
with loading correction		74.5	76.6	74.1	73.8	73.5	74.5	73.8	74.8	75.0	78.7	76.8	75.9
without background		71.2	74.9	70.7	70.0	68.8	70.8	68.6	71.4	71.6	77.7	75.2	73.4
		13121497.4	30814508.4	11780603.0	9953617.0	7647735.4	12030698.8	7161590.6	13673265.2	14335994.7	58387260.1	32828838.1	21814729.2
Approach		76.9	80.9	75.8	79.2	76.5	79.3	77.2	79.4	79.2	80.3	83	79	79.1
with loading correction		77.5	81.5	76.4	79.8	76.9	80.0	77.8	79.8	79.8	80.8	83.3	79.8
without background		76.1	81.0	74.8	79.1	75.4	79.2	76.3	79.0	78.9	80.2	83.0	78.9
		40901837.6	125439896.0	29869288.0	80776307.7	34299703.7	84012422.8	43080171.4	79123538.1	77597713.8	104323746.1	200335964.3	78253312.1
Hovering		79.7	81.7	79.6	81.6	80.4	80.7	80.6	80.3	79.2	80.7	83.8	82.4	81.1
with loading correction		80.3	82.3	80.2	82.2	80.8	81.4	81.2	80.7	79.8	81.2	84.1	83.2
without background		79.6	81.9	79.6	81.8	80.2	80.9	80.6	80.1	78.9	80.6	83.9	82.8
		91329590.2	153735536.2	91410471.6	150557621.0	105712510.2	122138536.9	113961082.2	101164728.3	77597713.8	115882983.3	243989510.1	191370679.5
Idling		71.3	73.3	72.8	71.9	72.0	72.4	73.0	72.1	71.9	72.1	72.2	72	63.5
without background		61.3	68.4	66.9	62.3	60.2	60.6	65.3	62.1	61.9	58.6	60.4	62.0
		1348962.9	6925223.2	4929231.7	1684323.5	1057848.0	1159907.3	3356754.1	1621810.1	1548816.6	729934.8	1107702.9	1584893.2
Hovering		78.0	78.7	78.7	79.2	77.1	78.6	78.0	76.8	77.1	75.5	77.9	78.1	77.0
with loading correction		78.7	79.3	78.7	79.2	77.1	78.8	78.4	77.0	77.2	75.6	77.9	78.7
without background		77.7	78.5	77.8	78.4	75.6	77.8	77.2	75.3	75.5	73.2	76.6	77.6
		59510829.9	71328359.3	60005648.7	69372534.5	36495054.5	59639656.5	52746711.5	33522854.3	35089052.9	21096576.1	46171334.0	57731221.5
Take Off		75.3	76.4	78.2	77.0	75.3	74.6	76.4	77.9	74.2	74.4	73.4	72.4	73.9
with loading correction		76.0	77.0	78.2	77.0	75.3	74.8	76.8	78.1	74.3	74.5	73.4	73.0
without background		74.0	75.6	77.2	75.6	72.8	71.5	75.0	76.8	69.9	71.1	68.1	65.0
		25111406.4	36058234.5	51943969.4	36314880.7	19093331.7	13981416.2	31377475.8	47969553.8	9723019.6	12910634.5	6389450.1	3127004.6
Pass By		72.1	72.3	72.9	72.9	71.8	73.2	72.3	72.2	73.1	73.5	72.8	72.4	66.0
with loading correction		72.8	72.9	72.9	72.9	71.8	73.4	72.7	72.4	73.2	73.6	72.8	73.0
without background		66.3	67.2	67.3	67.6	55.4	67.5	63.2	58.9	65.7	68.8	65.5	65.0
		4307448.704	5197296.608	5373070.551	5694603.352	344528.6027	5659515.266	2067927.834	782139.2131	3747596.79	7595245.65	3566440.99	3127004.55
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		77.4	80.9	76.1	77.8	78.5	75.9	77.8	78.0	79.0	81.6	85.9	78.8	79.8
with loading correction		78.0	81.5	76.7	78.4	78.9	76.6	78.4	78.4	79.6	82.1	86.2	79.6
without background		76.8	81.0	75.2	77.4	78.0	74.7	77.2	77.2	78.7	81.6	86.1	78.7
		47697401.8	125439896.0	33015755.8	54713419.4	63012571.2	29596087.7	51921392.9	52746711.5	73340905.8	146133656.4	405335349.2	73966997.3
Approach		81.1	83.9	79.6	84.2	79.0	84.8	83.2	84.7	84.6	83.8	88.6	84.7	84.5
with loading correction		81.7	84.5	80.2	84.8	79.4	85.5	83.8	85.1	85.2	84.3	88.9	85.5
without background		81.2	84.2	79.6	84.6	78.6	85.3	83.4	84.9	84.9	84.0	88.9	85.3
		131696224.8	264671414.6	91410471.6	285284853.9	72506053.0	339413217.6	220978727.2	307743748.3	310961797.9	252737294.6	768121888.7	336851920.3
Hovering		84.9	84.9	84.8	84.8	84.9	84.9	84.9	84.9	84.9	84.6	88.9	84.9	85.7
with loading correction		85.5	85.5	85.4	85.4	85.3	85.6	85.5	85.3	85.5	85.1	89.2	85.7
without background		85.3	85.3	85.3	85.2	85.1	85.4	85.2	85.1	85.2	84.9	89.2	85.5
		336607494.4	336944180.5	335336658.3	329595927.4	324834188.7	347696935.2	334802709.2	323029403.5	334416141.7	306989765.7	824165135.4	353527619.8
Idling		77.5	80.5	78.4	77.7	76.0	77.7	81.9	77.6	78.8	80.3	79.7	81.4	78.4
without background		76.2	79.9	77.4	76.5	74.0	76.3	81.4	76.1	77.7	79.6	78.9	80.8
		41443048.6	97747447.7	55057721.6	45080522.9	25019633.2	42666264.6	138285792.8	40948124.7	58875321.0	91663764.3	77837263.9	121055989.9
Hovering		84.5	84.9	84.2	84.8	83.8	84.9	84.9	83.9	84.5	80.6	85.6	84.9	84.5
with loading correction		85.2	85.5	84.2	84.8	83.8	85.1	85.3	84.1	84.6	80.7	85.6	85.5
without background		85.0	85.4	84.0	84.6	83.5	84.9	85.1	83.8	84.3	80.1	85.4	85.3
		317103373.7	343147652.5	248901423.7	288191329.4	225092208.0	307375556.0	323029403.5	240443709.2	269171681.4	102897739.2	347589888.6	340619613.7
Take Off		78.7	79.0	83.0	81.9	77.4	77.4	80.8	82.2	78.7	79.0	75.5	74.4	79.2
with loading correction		79.4	79.6	83.0	81.9	77.4	77.6	81.2	82.4	78.8	79.1	75.5	75.0
without background		78.6	78.9	82.7	81.5	76.0	76.2	80.6	82.0	77.7	78.2	73.0	71.7
		72506053.0	77463482.5	185400856.1	141077819.2	40163003.5	41325892.8	115533694.3	157184213.8	58283765.2	66414869.7	19993172.7	14888879.7
Pass By		76.1	75.1	75.9	74.6	75.6	74.9	75.0	75.3	75.7	75.7	76.3	74.4	73.3
with loading correction		76.8	75.7	75.9	74.6	75.6	75.1	75.4	75.5	75.8	75.8	76.3	75.0
without background		75.2	73.6	73.9	71.8	73.3	72.1	72.6	72.8	73.2	73.6	74.3	71.7
		33182261.0	22991133.9	24779139.1	15036472.4	21516721.6	16141264.7	18157747.1	18885469.8	20740022.9	22820761.9	27169785.7	14888879.7
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
		71.7	71.6	71.5	71.4	71.7	72.1	72.2	72.2	72.3	71.9	71.9	72.3	71.9
		14791083.88	14454397.71	14125375.45	13803842.65	14791083.88	16218100.97	16595869.07	16595869.07	16982436.5	15488166.2	15488166.2	16982436.5