Calculate Actual MA of Slackline pulley system

	B	C	D	E	F	G	H	I	J	K	L	M	N	O	P	Q
1	Calculate Actual MA in consideration of pulley system efficiency
2	You can calculate the change in order and size of pulleys. Please calculate the effect of brake loss.
3	Point Use high efficiency pulleys near hand. In MA system brake is calculated as Multiplied first pulley.
4	Edit Red &Blue sells only
5	EXAMPLE：I'D, GriGri, Eddy 40%~60% , MPD/Petzl-tracxion92%, EXAMPLE： 2"ball bearring=92% ,3"ball bearing=95%, 1.5" bushing=80%~90%
6
7	Base Pulley System								Pulley Efficiency　% (100 is nofriction)
8	Theoretical MA		Average Efficiency		Actual Efficiency		Efficiency Loss		1st	2nd	3rd	4th	5th	6st	7th	8th
9	4:1		93	%	370	%	30	%	95	95	95
10	5:1		80	%	400	%	100	%	90	90	90	90
11	6:1		88	%	525	%	75	%	95	95	95	95	95
12	7:1		85	%	595	%	105	%	95	95	95	95	95	95
13	9:1		80	%	720	%	180	%	95	95	95	95	95	95	95	95
14
15	Multiplier								Brake & Pulley Efficiency %
16	Theoretical MA		Average Efficiency		Actual Efficiency		Efficiency Loss		Brake	2nd	3rd	４th	5th	6th
17	3:1		77	%	230	%	70	%	50	90
18	5:1	(3+2):1	61	%	305	%	195	%	50	90	90
19	5:1		72	%	360	%	140	%	50	90	90	90
20	7:1		64	%	450	%	250	%	50	90	90	90	90	90
21	9:1	(3:1)×(3:1)	69	%	621	%	279	%	50	90	90	90
22	11:1	2+(3×3):1	65	%	710	%	390	%	50	90	90	90	90
23	15:1	(5:1)×(3:1)	65	%	972	%	528	%	50	90	90	90	90	90
24
25	Select base Pully System "MA"
26	→	5		:1
27		400		%
28		×
29	Sub Tenssioning Pully System (Multiplyer)			Main & Sub Pully System					Force in the line　kN
30	Theoretical MA			Theoretical MA	Actual		Loss		Pulling force kN
31	Theoretical MA			Total					1.0kN	3kN	5kN	8kN	10kN	12kN	15kN	20kN
32	3:1			15	9.20		5.80		0.11	0.33	0.54	0.87	1.09	1.30	1.63	2.17
33	3:1			15	61%		39%		0.11	0.33	0.54	0.87	1.09	1.30	1.63	2.17
34	5:1	(3+2):1		25	12.20		12.80		0.08	0.25	0.41	0.66	0.82	0.98	1.23	1.64
35	5:1	(3+2):1		25	49%		51%		0.08	0.25	0.41	0.66	0.82	0.98	1.23	1.64
36	5:1			25	14.40		10.60		0.07	0.21	0.35	0.56	0.69	0.83	1.04	1.39
37	5:1			25	58%		42%		0.07	0.21	0.35	0.56	0.69	0.83	1.04	1.39
38	7:1			35	18.00		17.00		0.06	0.17	0.28	0.44	0.56	0.67	0.83	1.11
39	7:1			35	51%		49%		0.06	0.17	0.28	0.44	0.56	0.67	0.83	1.11
40	9:1	(3:1)×(3:1)		45	24.84		20.16		0.04	0.12	0.20	0.32	0.40	0.48	0.60	0.81
41	9:1	(3:1)×(3:1)		45	55%		45%		0.04	0.12	0.20	0.32	0.40	0.48	0.60	0.81
42	11:1	2+(3×3):1		55	28.40		26.60		0.04	0.11	0.18	0.28	0.35	0.42	0.53	0.70
43	11:1	2+(3×3):1		55	52%		48%		0.04	0.11	0.18	0.28	0.35	0.42	0.53	0.70
44	15:1	(5:1)×(3:1)		75	38.88		36.12		0.03	0.08	0.13	0.21	0.26	0.31	0.39	0.51
45	15:1	(5:1)×(3:1)		75	52%		48%		0.03	0.08	0.13	0.21	0.26	0.31	0.39	0.51
46
47	slackline.jp