Table 2.  Scale Speeds
	Prototype								Scale Speed
	Speed								(inches/sec)
	(miles/hour)			Z		N		TT		HO		S		O		G
	1			0.08		0.11		0.15		0.20		0.28		0.37		0.78
	2			0.16		0.22		0.29		0.40		0.55		0.73		1.56
	5			0.40		0.55		0.73		1.01		1.38		1.83		3.91
	10			0.80		1.10		1.47		2.02		2.75		3.67		7.82
	15			1.20		1.65		2.20		3.03		4.13		5.50		11.7
	20			1.60		2.20		2.93		4.04		5.50		7.33		15.6
	25			2.00		2.75		3.67		5.05		6.88		9.17		19.6
	30			2.40		3.30		4.40		6.06		8.25		11.0		23.5
	35			2.80		3.85		5.13		7.07		9.63		12.8		27.4
	40			3.20		4.40		5.87		8.08		11.0		14.7		31.3
	45			3.60		4.95		6.60		9.09		12.4		16.5		35.2
	50			4.00		5.50		7.33		10.1		13.8		18.3		39.1
	55			4.40		6.05		8.07		11.1		15.1		20.2		43.0
	60			4.80		6.60		8.80		12.1		16.5		22.0		46.9
	70			5.60		7.70		10.3		14.1		19.3		25.7		54.8
	80			6.40		8.80		11.7		16.2		22.0		29.3		62.6
	90			7.20		9.90		13.2		18.2		24.8		33.0		70.4
	100			8.00		11.0		14.7		20.2		27.5		36.7		78.2
	110			8.80		12.1		16.1		22.2		30.3		40.3		86.0
	120			9.60		13.2		17.6		24.2		33.0		44.0		93.9
	150			12.0		16.5		22.0		30.3		41.3		55.0		117.3