Sheet1

JRA Performance testing

Tested Boat Data
Order tested	1	2	3	4
Boat Name	Weaverbird	Calisto	Miranda	Poppy
Boat Type	Hunter Duette 23	Varne 27	Etap 23i	Westerly Longbow
Hull data
LOA(ft)	22.75	27.75	22.44	31
LOA(m)	6.93	8.46	6.84	9.45
LWL(ft)	18.16	21	19.03	25
LWL(m)	5.54	6.4	5.8	7.62
Beam(ft)	8.5	9	8.17	9.5
Beam(m)	2.59	2.74	2.49	2.9
Draft (max)(ft)	3.08	4.25	4.8	4.5
Draft (max)(m)	0.94	1.3	1.46	1.37
Displ(lbs)	2745	6200	3306	9400
Displ(kg)	1245	2812	1500	4264
Ballast(lbs)	1435	2595	1036	4200
Ballast(kg)	651	1177	470	1905
Ballast Ratio	52.29	41.86	31.33	44.68
D/L calc	204.6	298.9	214.2	268.6

Rig data
SA (100% foretriangle of original design)
SA(ft2)	236.72	302.8	215.2	371
SA(m2)	22	28.13	20	34.46
Rig type when tested	JR hinged battens	Bermudan	Aerojunk	Split junk
SA of rig as tested
SA on test (ft2)	236.72	345.37	215.2	515
SA on test (m2)	22	32.1	20	47.5
SA/D on test	19.32	16.38	15.52	18.51

Correction factors
Sailing LWL calc	19.69	23.25	20.17	27.00
Sqrt Sailing LWL calc	4.44	4.82	4.49	5.20
Factor to Sqrt LWL of 5	1.13	1.04	1.11	0.96
Factor to SA/D of 18	0.93	1.10	1.16	0.97
Factors combined	1.05	1.14	1.29	0.94

Bottom condition
1=clean, 10 = heavy	1	3	3	1
Last scrub	1 week before test	Little fouling	Coppercoat, keel afd April	1 week before test
Propeller type	Fixed O/B	Fixed	Fixed O/B	Kiwi feathering