Taurus, Propulsion

Propulsion Taurus

Castor 120	Orion 50SXLT
Orion 50XLT	Orion 38

ARPA Taurus

Stage	Engines	Thrust s.l.		Isp s.l.	Thrust vac		Isp vac	Propellant	Burn time	Flow rate		Total Imp.
		kN		N*s/kg	kN		N*s/kg	tons	s	t/s		MN*s
1	TU-903	max	2,128.5	2442	max	2,204.0	2725	45.690	56.5	max	0.8716	124.52
		ave	1,974.8		ave	2,375.4				ave	0.8087
2	Orion 50ST	max			max	556.0	2809	12.157	75.0	max	0.1980	34.15
		ave			ave	454.4				ave	0.1618
3	Orion 50T	max			max	133.4	2865	3.025	75.6	max	0.0466	8.67
		ave			ave	114.6				ave	0.0400
4	Orion 38	max			max	36.7	2834	0.771	67.7	max	0.0129	2.18
		ave			ave	32.2				ave	0.0114

Taurus

Stage	Engines	Thrust s.l.		Isp s.l.	Thrust vac		Isp vac	Propellant	Burn time	Flow rate		Total Imp.
		kN		N*s/kg	kN		N*s/kg	tons	s	t/s		MN*s
1	Castor 120	max	1,694.0	2481	max	1,868.0	2736	49.006	79.5	max	0.6828	134.07
		ave	1,528.9		ave	1,685.9				ave	0.6162
2	Orion 50ST	max			max	556.0	2809	12.157	75.0	max	0.1980	34.15
		ave			ave	454.4				ave	0.1618
3	Orion 50T	max			max	133.4	2865	3.025	75.6	max	0.0466	8.67
		ave			ave	114.6				ave	0.0400
4	Orion 38	max			max	36.7	2834	0.771	67.7	max	0.0129	2.18
		ave			ave	32.2				ave	0.0114

Taurus-XL

Stage	Engines	Thrust s.l.		Isp s.l.	Thrust vac		Isp vac	Propellant	Burn time	Flow rate		Total Imp.
		kN		N*s/kg	kN		N*s/kg	tons	s	t/s		MN*s
1	Castor 120	max	1,694.0	2481	max	1,868.0	2736	49.006	79.5	max	0.6828	134.07
		ave	1,528.9		ave	1,685.9				ave	0.6162
2	Orion 50SXLT	max			max	720.5	2803	15.024	68.4	max	0.2571	42.11
		ave			ave	614.9				ave	0.2194
3	Orion 50XLT	max			max	179.7	2855	3.924	69.7	max	0.0630	11.20
		ave			ave	160.6				ave	0.0562
4	Orion 38	max			max	36.7	2834	0.771	67.7	max	0.0129	2.18
		ave			ave	32.2				ave	0.0114