Comparative Winch Handle Loads
Power Ratio = 2 * length of handle * gear ratio / diameter of drum.  This formula is the theoretical maximum and is subject to friction losses.
Length of Handle (in.) =	10
Max Handle Load (lb.) =	20	(Brion Toss recommends 35# as desired max handle load)
Friction Losses (in %)	20%	(Some estimates are as high as 35%, depends on # of wraps, load, and internal construction of the winch)
Loads less than Max Handle Load (I.e. allowable loads) are indicated by bold numbers in following pages, e.g:									75
Greyed out boxes are outside the normal wind range of the subject sail, e.g. ……………………………………….									114
FIRST WINCH SPEED
Sail	Model	1st Speed	Anderson Winch Handle Load (lbs.) for Apparent Wind (Knots)
		Power Ratio	5	10	15	20	25	30	35	40	45	50	55	60
Furling Genoa	52ST	16.3	2.5	10	23	41	64	92	125	163	206	254	308	366
Genoa Part Furled (100%)	52ST	16.3	2.0	8	18	33	51	73	100	131	165	204	247	294
Working Staysail	40ST	8.7	1.6	6	14	25	40	57	78	102	129	159	192	229
Storm Staysail	40ST	8.7	1.1	5	10	18	29	41	56	73	92	114	138	164
Asym. Cr. Spinnaker	52ST	16.3	6.9	27	62	110	172	247	336	439	556	687	831	989
Storm Trysail / Third Reef	52ST	16.3	0.5	2.0	4.0	8.0	12.0	18.0	24.0	32	40	49	60	71
Sail	Model	1st Speed	Harken Winch Handle Load (lbs.) for Apparent Wind (Knots)
		Power Ratio	5	10	15	20	25	30	35	40	45	50	55	60
Furling Genoa	B56.3STC	21.1	2.0	8	18	31	49	71	96	126	159	196	238	283
Genoa Part Furled (100%)	B56.3STC	21.1	1.6	6	14	25	39	57	77	101	128	158	191	227
Working Staysail	B40.2STC	14.7	0.9	4	8	15	24	34	46	60	76	94	114	135
Storm Staysail	B40.2STC	14.7	0.7	3	6	11	17	24	33	43	55	68	82	97
Asym. Cr. Spinnaker	B56.3STC	21.1	5.3	21	48	85	133	191	260	339	429	530	642	764
Storm Trysail / Third Reef	B56.3STC	21.1	0.4	2.0	3.0	6.0	10.0	14.0	19.0	24	31	38	46	55
Sail	Model	1st Speed	Lewmar Winch Handle Load (lbs.) for Apparent Wind (Knots)
		Power Ratio	5	10	15	20	25	30	35	40	45	50	55	60
Furling Genoa	54CST	13.6	3.0	12	27	49	76	110	149	195	247	305	368	439
Genoa Part Furled (100%)	54CST	13.6	2.4	10	22	39	61	88	120	156	198	244	296	352
Working Staysail	40CST	13.1	1.1	4	9	17	26	38	52	67	85	105	127	152
Storm Staysail	40CST	13.1	0.8	3	7	12	19	27	37	48	61	76	92	109
Asym. Cr. Spinnaker	54CST	13.6	8.2	33	74	132	206	296	403	526	666	822	995	1,184
Storm Trysail / Third Reef	54CST	13.6	0.6	2.0	5.0	9.0	15.0	21.0	29.0	38	48	59	72	85
SECOND WINCH SPEED
Sail	Model	2nd Speed	Anderson Winch Handle Load (lbs.) for Apparent Wind (Knots)
		Power Ratio	5	10	15	20	25	30	35	40	45	50	55	60
Furling Genoa	52ST	53.3	0.8	3	7	12	19	28	38	50	63	78	94	112
Genoa Part Furled (100%)	52ST	53.3	0.6	2	6	10	16	22	30	40	50	62	75	90
Working Staysail	40ST	40.1	0.3	1	3	6	9	12	17	22	28	34	42	50
Storm Staysail	40ST	40.1	0.2	1	2	4	6	9	12	16	20	25	30	36
Asym. Cr. Spinnaker	52ST	53.3	2.1	8	19	33	52	75	103	134	170	209	253	301
Storm Trysail / Third Reef	52ST	53.3	0.2	1.0	1.0	2.0	4.0	5.0	7.0	10	12	15	18	22
Sail	Model	2nd Speed	Harken Winch Handle Load (lbs.) for Apparent Wind (Knots)
		Power Ratio	5	10	15	20	25	30	35	40	45	50	55	60
Furling Genoa	B56.3STC	54.7	0.8	3	7	12	19	27	37	48	61	76	91	109
Genoa Part Furled (100%)	B56.3STC	54.7	0.6	2	5	10	15	22	30	39	49	61	73	87
Working Staysail	B40.2STC	40.0	0.3	1	3	6	9	12	17	22	28	34	42	50
Storm Staysail	B40.2STC	40.0	0.2	1	2	4	6	9	12	16	20	25	30	36
Asym. Cr. Spinnaker	B56.3STC	54.7	2.0	8	18	33	51	73	100	131	165	204	247	294
Storm Trysail / Third Reef	B56.3STC	54.7	0.1	1.0	1.0	2.0	4.0	5.0	7.0	9	12	15	18	21
Sail	Model	2nd Speed	Lewmar Winch Handle Load (lbs.) for Apparent Wind (Knots)
		Power Ratio	5	10	15	20	25	30	35	40	45	50	55	60
Furling Genoa	54CST	54.3	0.8	3	7	12	19	27	37	49	62	76	92	110
Genoa Part Furled (100%)	54CST	54.3	0.6	2	6	10	15	22	30	39	50	61	74	88
Working Staysail	40CST	40.0	0.3	1	3	6	9	12	17	22	28	34	42	50
Storm Staysail	40CST	40.0	0.2	1	2	4	6	9	12	16	20	25	30	36
Asym. Cr. Spinnaker	40CST	40.0	2.8	11	25	45	70	100	137	179	226	279	338	402
Storm Trysail / Third Reef	54CST	54.3	0.1	1.0	1.0	2.0	4.0	5.0	7.0	9	12	15	18	21
HIGH SPEED for HARKEN 3-SPEED WINCHES
Sail	Model	3rd Speed	3-Speed Harken Winch Handle Load (lbs.) for Apparent Wind (Knots) - Highest Speed
		Power Ratio	5	10	15	20	25	30	35	40	45	50	55	60
Furling Genoa	B56.3STC	9.3	4	18	40	71	112	161	219	286	362	446	540	643
Genoa Part Furled (100%)	B56.3STC	9.3	3.6	14	32	57	90	129	176	229	290	358	434	516
Storm Trysail / Third Reef	B56.3STC	9.3	0.9	3.5	7.8	13.9	21.7	31.3	42.5	56	70	87	105	125