Ocracoke 20 Performance Data

	A	B	C	D	E	F	G	H	I	J	K
1	Ocracoke 20 Performance Data
2							indicates inputs from direct observation
3		1kph = .5399 knots	1 km/ltr. = 2.044 nm/gal	1 km/ltr. = 2.352 Mi/gal		C factor	150
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5	LOA (hull)	20
6	Beam	7' 10"
7	LWL	16' 4"
8	Draft	9"
9	Draft (motor down)	-
10	Displacement	2000	lbs
11	Deadrise	13	deg
12	Fuel Capacity	25 gal (original)
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16	Hull #	Owner	Motor(s)	HP	Gear Ratio	motor config.	Prop (s)	Diameter	Pitch
17	1	Eric Baxter	Honda	90	?	single	?	?	?
18	RPM	SPEED (knots)	Consumption (GPH)	NM/ gal	SPEED (Km/hr)	(Lt/hr)	(km/litre)	Prop Slip		C factor
19	6,000	36.5								172.1
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22	Hull #	Owner	Motor(s)	HP	Gear Ratio	motor config.	Prop (s)	Diameter	Pitch
23	?	Bill Hill	Yamaha	115	?	single	3 blade	13.0	19.0
24	RPM	SPEED (knots)	Consumption (GPH)	NM/ gal	SPEED (Km/hr)	(Lt/hr)	(km/litre)	Prop Slip		C factor
25	6,000	36.5								152.2
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27	Hull #	Owner	Motor(s)	HP	Gear Ratio	motor config.	Prop (s)	Diameter	Pitch		* Data at 1200 ft elevation
28	40	Fishman	Yamaha	115	?	single	3 blade	13.8	13.0
29	BUILD LOG LINK	https://messing-about.com/forums/topic/8455-fishman38-ok20/?page=21
30	RPM	SPEED (knots)	Consumption (GPH)	NM/ gal	SPEED (Km/hr)	(Lt/hr)	(km/litre)	Prop Slip		C factor
31	6,100	33.0								136.5
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33	Hull #	Owner	Motor(s)	HP	Gear Ratio	motor config.	Prop (s)	Diameter	Pitch
34	?	NZ Lance	Older Yamaha 2 stroke	115	?	single	3 blade	?	?
35	BUILD LOG LINK	https://messing-about.com/forums/topic/7419-okcracoke-20-in-nz/
36	RPM	SPEED (knots)	Consumption (GPH)	NM/ gal	SPEED (Km/hr)	(Lt/hr)	(km/litre)	Prop Slip		C factor
37	4,200	29.5	7.0							147.0
38	5700.0	38.4								164.3
39	Went out for the maiden voyage tonight. 48 mph at 5700 and was still winding out. very happy indeed. Not bad figures for a 20 ft boat with only a 115. At 4200 rpm its sitting real nice @ 34mph retuning 7 gallons p/hr. Carb engine, pretty good economy. The ride was beautiful, very smooth.... rides up onto the plane easily while hull remains farily level, very impressed. High speed turns showed no prop venting... it just hung on like on rails. The trim tabs work great , with both of us on one side at 30 mph a simple touch of button had boat pefectly level and super stable. Also very stable at rest... sure it healed slightly with crew on one gunnel... but that was to be expected ... it aint a catermaran. All up I was bloody happy. Have been in alot of boats over the years and this was right up the with the best of them. The conditions werent exactly testing but punching across ferry wake @ 40 mph showed no signs of anything scary at all. smooth, composed and quiet. Congatulations Graham on your hull design. It works well., turns alot of heads too. People all over the marina were pitching up to look at her.
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41	Hull #	Owner	Motor(s)	HP	Gear Ratio	motor config.	Prop (s)	Diameter	Pitch
42	?	Lenm	Yamaha 150hp XCA	150	2	single	3 blade	14.3	17.0
43	BUILD LOG LINK	https://messing-about.com/forums/topic/7419-okcracoke-20-in-nz/
44	RPM	SPEED (knots)	Consumption (GPH)	NM/ gal	SPEED (Km/hr)	(Lt/hr)	(km/litre)	Prop Slip		C factor
45	3,400	20.0				16-17		84.10%		110.8
46	3,800	25.0	4.3			16-17		94.06%		166.8
47	6,000	40.0						95.31%
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