Calculating TR numbers multihulls 2009		version	15/dec/08
	fr: N.Boon Feb 2009
	Input: slackwater_sf		031409
	INPUT	type/name	C-24 Configs		intermediate calculations
	date input		14/mrt/09
	weight boat	WM (kg)	1050		weight crew	crew	220.4
	draft if no (dagger)boards	draft			rated weight = weight boat + crew	RW	1270
	propeller correction	prop			rated sail ar. Main	RSAM	19.81
	if trimaran input 1	tri	1		rated sail ar. Jib (genoa)	RSAG	9.64
	overall Length (Length bow to stern)	LOA (m)	7.49
	rated length	RL (m)	7.26		rated sail ar. spinnaker	RSAS	1.66
	area main sail	MSAM (m²)	21.95		rated sail area screacher	RSAScr	0.00
	height main	p (= vlm)	9.47		rated sail area	RSA	31.12
	area mast, if rotating wingmast	m²	2.07		main eff. ratio  (arm)	msam / e^2	1.87
	footlength main sail	e	3.43		main efficiency em	factor	0.81
	area jib	MSAG (m²)	11.74		jib eff. ratio  (arg)	msag/lpg^2	1.55
	perpendicular luff jib	lpg	2.75		jib efficiency eg	factor	0.82
	height jib	I (= vlg)	8.49
	area spinnaker	MSAS (m²)	33.39
	area screecher	MSAScr (m²)	0.00		catamaran correction if no tri	cat	1.000
	smg screecher	smgscr	0.00
	sf screecher	sfscr	0.00
					keel correction	keel
	total width	width (m)	5.50		heeling	kgm	1069.0
	beam outer hull	beam (m)	0.71		righting	kgm	3041.8
	windspeed true wind Vt (in knots)	knots	12.61		stability factor to use if < 1	stabfac	2.85
	OUTPUT
	TR  calculated		120.25		Constant factors
	TR rounded		120
	TCF (1 / TR)		0.833		windcoefficient		0.07
	Vt in knots conversed	m/s	6.49		dyn. press. Va in kg/m²		5.88
	average boatspeed Vb	knots	7.3
			2009
		C-24 MkII	C-24 MkII #284			TCF
	weight boat (constant)	1050	1050		C-24 MkII #284	0.8333
	overall Length (Length bow to stern)	7.4900	7.4900		C-24 MkII	0.8333
	rated length	7.2600	7.2600
	area main sail	22.4550	21.9524			PHRF
	height main	9.0000	9.4700		C-24 MkII #284	68
	mast circumference	0.3953	0.4382		C-24 MkII	68	mid-fleet set at PHRF 69
	area mast, if rotating wingmast	1.7788	2.0746
	footlength main sail	3.5000	3.4300		PHRF Difference	0
	area jib	10.9363	11.7390
	perpendicular luff jib	2.5900	2.7500
	jib luff	8.4450	9.0300
	height jib (VLG = luff * 0.94)	7.9383	8.4882			A
	area spinnaker	43.7675	33.3892			469	mid-fleet set at PHRF 69
	area screecher	0.0000	0.0000		(TCF) = A / ( B + PHRF)	B
	smg screecher	0.0000	0.0000		PHRF = (A / TCF) - B	494	3600 / knots
	sf screecher	0.0000	0.0000
	total width	5.5000	5.5000
	beam outer hull (28")	0.7112	0.7112
	OUTPUT	C-24 MkII	C-24 MkII #284
	TR  calculated	119.8618	120.2473
	TR rounded	120.0000	120.0000
	TCF (1 / TR)	0.8333	0.8333
	Vt in knots conversed	6.4876	6.4876
	average boatspeed Vb	7.2804	7.2804